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billlang(at)live.com.au
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 Posted: Fri Jul 09, 2010 3:45 am Post subject: Starter sequence M14 |
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Pleading to anybody with detailed advice on how to get my M14P starter to start my M14P
Below is the correspondence so far that you good folks have provided. We have tried several settings on the starter spider, but to no success. The prop turns a few pots, quite slowly it seems, but then stops or öscillates, or blows air out the exhaust
We have access to plenty of air. We have tried direct air to the spider, eliminating all upstream equipment. We have tried 4, 6 8 12 degrees and still the prop waffles around. The engine starts first pull manually and is NEW, with only 50 hours on it. The starter has never worked on this engine. We are now driven to distraction as a change in setting of the spider is very time consuming as you may know. Any thoughts?
Once the engine is warm, the engine (I am told) started first go WITH the air starter. Now this may be because;
1. engine warm and very easy to start on first rotation or
2. maybe on a cold engine, valves are sticking cold, and are freed once warmed. but
Mechanic has done cold compression test and all pots exceed required compression limits
Just a tought but is it possible for valves to stick on a cold engine and still show good compression on a compression test? I don't want to throw in a red herring
We are stumped
Any thoughts suggestions instructions (any from left field) most welcome
Helpppp!!
Bill
............................................................................................................................................................
Bill,
Prop degrees for Housai is 9 degrees, for M14P 8 degrees, both on #4
cylinder after TDC.
Gill
From: owner-yak-list-server(at)matronics.com
[mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lang
Sent: Wednesday, June 02, 2010 9:38 PM
Subject: RE: Yak 52 Starter Sequence?
The mechanic is working on the spider now. He asked me to ask if anyone
knows the number of degrees of prop rotation from TDC to set the spider at,
or any other advice for setting it. The instuctions from the M14 manual are
a bit ambiguous. (no access to Housai Manual)
Bill
_____
From: gill.g(at)gpimail.com
Subject: RE: Yak 52 Starter Sequence?
Date: Fri, 9 Apr 2010 09:54:17 -0700
If you have access to a Housai manual, it provides better instructions as it
has a diagram. The difference relates to prop gearing. I have reset mine
twice after engine disassembly and it's not a big deal.
Gill
From: owner-yak-list-server(at)matronics.com
[mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Yak Pilot
Sent: Thursday, April 08, 2010 5:50 PM
Subject: RE: Yak 52 Starter Sequence?
GOOD FOR YOU! Good job in finding the proper task cards!
Let me run my mouth one last time. First, adjusting this thing is a real
pain in the ass. It is hard to get to the nuts and stuff to remove it, it
requires you to get the engine set up perfectly, and then insert the thing
back in and tighten it down. I have been involved in adjusting it twice,
and it was a real ass kicker.
Next... make darn sure... let me correct that: MAKE DAMN SURE that you know
this is the problem before you remove it from the engine and start trying to
re-adjust it. Once you remove it, you have no choice but to finish the job.
I am not kidding when I tell you that a flow restriction in the air system
will cause the exact same problem that you are reporting.
Yes, it is most likely that someone messed with this in the past, and just
could never get it right again, and this is what you have wrong now. (I.E.
A misadjusted Air Distributor) The odds are good that this is your problem,
but as a Tech Rep, my mind always considers the alternatives and you can
never rule out ANYTHING unless you verify it as a "known good". That said,
if your AIR FLOW to this unit is low, it will do the exact same thing you
are now reporting.
That said, if I was there, I would take my nitrogen bottle with a good
regulator and would connect it DIRECTLY to the line going to the air
distributor and would set it to 730 PSI and would see what happened when I
turned it on. If the engine does the exact same thing, then you are sure
that the distributor is the problem. However, if the engine spins right
around perfectly, then you can STOP RIGHT THERE and say "BOY OH BOY IT IS
NOT THE AIR DISTRIBUTOR" and you have saved yourself one HUGE amount of
work.
Consider this advice carefully.
Best regards,
Mark Bitterlich
--- On Thu, 4/8/10, Bill Lang wrote:
From: Bill Lang
Subject: RE: Yak 52 Starter Sequence?
Date: Thursday, April 8, 2010, 7:12 PM
Mark
Further to my last.. found the ref on George's web site M14 maint Manual,
task card 204. Hope my guy
can do it.
Thanks
Bill
| Quote: | Subject: RE: Yak 52 Starter Sequence?
Date: Thu, 8 Apr 2010 12:53:38 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
MALS-14 64E"
|
[quote]
MOST LIKELY: Your air distributor is out of alignment.
This is a tedious and exacting job. VERY TEDIOUS AND VERY EXACTING!
There is a little gear in there with many little itsy tiny teeth that
has to be JUST right.
I would suggest you contact Dennis Savarese directly, I believe he has
the procedure written out and ready to send. It is addressed in the
maint. Cards for the engine. It might also be at George Coy's web site.
His site is also a wealth of knowledge.
It is much MUCH more complicated than just spinning it 180 degrees, SAD
TO SAY! Without the instructions, I have seen people mess with this
thing for days. DAYS!
Just FYI, the thing does more than just put air into a cylinder to make
the piston move. When it is perfectly set up, it not only puts air into
one cylinder to push the piston down, it also sends air to the lower
cylinders WITH THE EXHAUST VALVES OPEN to help push any oil that is in
there right out the exhaust. But it has to be timed PERFECTLY to the
engine, just like the ignition distributor on your car, or the mag on
your airplane. Please excuse the language on the net, but it is a real
SOB to adjust.
I am sorry that I do not have the instructions to give you, or have them
memorized... But I will tell you to not even think about messing with it
until you have the instructions fully in hand and understand them
perfectly.
Mark Bitterlich
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mark.bitterlich(at)navy.m
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| Posted: Fri Jul 09, 2010 7:50 am Post subject: Starter sequence M14 |
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When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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billlang(at)live.com.au
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| Posted: Sat Jul 10, 2010 4:09 am Post subject: Starter sequence M14 |
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Thanks Mark,
Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
I think our next move will be to rig the Scuba air bottle directly to the spider valve and make small adjustments and port air directly into the spider at each correction. That at least will save reassembly of all components as we try and turn the engine over, and eliminate in all cases any potential problems upstream.
Bill
Still in need of ideas
[quote] Subject: RE: RE: Starter sequence M14
Date: Fri, 9 Jul 2010 11:49:46 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
--> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich(at)navy.mil>
When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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yakplt(at)yahoo.com
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| Posted: Sat Jul 10, 2010 6:21 am Post subject: Starter sequence M14 |
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OOPS! My extreme apologies. I did not know you were in New South Wales. Ok, how about phone calls? Do you need numbers? Let me see what I can dig up again.
Mark Bitterlich
--- On Sat, 7/10/10, Bill Lang <billlang(at)live.com.au> wrote:
From: Bill Lang <billlang(at)live.com.au>
Subject: RE: RE: Starter sequence M14
To: "Yak List" <yak-list(at)matronics.com>, "Tim Windsor" <fly(at)topredwarbirds.com.au>
Date: Saturday, July 10, 2010, 8:09 AM
Thanks Mark,
Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
I think our next move will be to rig the Scuba air bottle directly to the spider valve and make small adjustments and port air directly into the spider at each correction. That at least will save reassembly of all components as we try and turn the engine over, and eliminate in all cases any potential problems upstream.
Bill
Still in need of ideas
[quote] Subject: RE: RE: Starter sequence M14
Date: Fri, 9 Jul 2010 11:49:46 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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yakplt(at)yahoo.com
Guest
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| Posted: Sat Jul 10, 2010 12:33 pm Post subject: Starter sequence M14 |
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Again Bill, sorry for assuming you were in the United States. Personally, I have to tell you that I enjoyed Australia more than anyplace I have ever been in my life, and that includes a whole lot of places. I was up in Nowra and made friends with a lot of wonderful folks, so the last thing I want to do is be a wise-a
--- On Sat, 7/10/10, Bill Lang <billlang(at)live.com.au> wrote:
From: Bill Lang <billlang(at)live.com.au>
Subject: RE: RE: Starter sequence M14
To: "Yak List" <yak-list(at)matronics.com>, "Tim Windsor" <fly(at)topredwarbirds.com.au>
Date: Saturday, July 10, 2010, 8:09 AM
Thanks Mark,
Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
I think our next move will be to rig the Scuba air bottle directly to the spider valve and make small adjustments and port air directly into the spider at each correction. That at least will save reassembly of all components as we try and turn the engine over, and eliminate in all cases any potential problems upstream.
Bill
Still in need of ideas
[quote] Subject: RE: RE: Starter sequence M14
Date: Fri, 9 Jul 2010 11:49:46 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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yakplt(at)yahoo.com
Guest
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| Posted: Sat Jul 10, 2010 12:39 pm Post subject: Starter sequence M14 |
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Again Bill, sorry for assuming you were in the United States. Personally, I have to tell you that I enjoyed Australia more than any place I have ever been in my life, and that includes a whole lot of places. I was up in Nowra and made friends with a lot of wonderful folks, so the last thing I want to do is be a wise-ass to a person who lives in a place I'd like to come back and visit!
The air distributor is set very much like when timing the mags. You want to set the engine to 12 degrees after top dead center referencing the master cylinder, which is of course cylinder number 4. Again, set the engine to 12 degrees AFTER top dead center on cylinder number four!
Now adjust the the air distributor so that the slide valve will open the supply of air to the number four cylinder by 1 mm.
That's the best I can do to help you. I hope it is enough.
Mark
--- On Sat, 7/10/10, Bill Lang <billlang(at)live.com.au> wrote:
From: Bill Lang <billlang(at)live.com.au>
Subject: RE: RE: Starter sequence M14
To: "Yak List" <yak-list(at)matronics.com>, "Tim Windsor" <fly(at)topredwarbirds.com.au>
Date: Saturday, July 10, 2010, 8:09 AM
Thanks Mark,
Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
I think our next move will be to rig the Scuba air bottle directly to the spider valve and make small adjustments and port air directly into the spider at each correction. That at least will save reassembly of all components as we try and turn the engine over, and eliminate in all cases any potential problems upstream.
Bill
Still in need of ideas
[quote] Subject: RE: RE: Starter sequence M14
Date: Fri, 9 Jul 2010 11:49:46 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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billlang(at)live.com.au
Guest
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| Posted: Sat Jul 10, 2010 3:19 pm Post subject: Starter sequence M14 |
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Mark
No worries. Thank you for your efforts , and we will perservere with this thing. Nothing cannot be fixed, eventually. Your information is indeed different to what we had been told, so we will concentrate on around 12 degrees.
Cheers
Bill
Date: Sat, 10 Jul 2010 13:39:26 -0700
From: yakplt(at)yahoo.com
Subject: RE: RE: Starter sequence M14
To: yak-list(at)matronics.com
Again Bill, sorry for assuming you were in the United States. Personally, I have to tell you that I enjoyed Australia more than any place I have ever been in my life, and that includes a whole lot of places. I was up in Nowra and made friends with a lot of wonderful folks, so the last thing I want to do is be a wise-ass to a person who lives in a place I'd like to come back and visit!
The air distributor is set very much like when timing the mags. You want to set the engine to 12 degrees after top dead center referencing the master cylinder, which is of course cylinder number 4. Again, set the engine to 12 degrees AFTER top dead center on cylinder number four!
Now adjust the the air distributor so that the slide valve will open the supply of air to the number four cylinder by 1 mm.
That's the best I can do to help you. I hope it is enough.
Mark
--- On Sat, 7/10/10, Bill Lang <billlang(at)live.com.au> wrote:
[quote]
From: Bill Lang <billlang(at)live.com.au>
Subject: RE: RE: Starter sequence M14
To: "Yak List" <yak-list(at)matronics.com>, "Tim Windsor" <fly(at)topredwarbirds.com.au>
Date: Saturday, July 10, 2010, 8:09 AM
.ExternalClass #ecxyiv1834808568 .ecxhmmessage P {padding:0px;} .ExternalClass #ecxyiv1834808568 .ecxhmmessage {font-size:10pt;font-family:Verdana;} Thanks Mark,
Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
I think our next move will be to rig the Scuba air bottle directly to the spider valve and make small adjustments and port air directly into the spider at each correction. That at least will save reassembly of all components as we try and turn the engine over, and eliminate in all cases any potential problems upstream.
Bill
Still in need of ideas
[quote] Subject: RE: RE: Starter sequence M14
Date: Fri, 9 Jul 2010 11:49:46 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
--> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich(at)navy.mil>
When the air-distributor is out of alignment or actually bad, the prop will tend to move a little bit, sometimes actually rotate backwards, and then stop and oscillate with air coming out the exhaust. This sounds to me like exactly what is happening to you. It was mentioned that adjusting this thing is "no big deal". You need to hire that person and have them fix it for you!
I have seen three Russian mechanics flail around with this thing for hours, and for them, it was indeed quite a BIG deal.
If your mechanic can not do it, I am guessing you are going to have to hire someone to come out and do it for you. Recommend Vladimir Yastremski, or Dennis.
Mark Bitterlich
P.s. One other really long shot possibility. Has ANYONE messed around with the Tach Generator timing housing? Have they taken the tach generator off, or messed around inside of that area? It is remotely possible that if they have, there is a gear missing from inside that assy, that actually turns the air starting distributor. In other words, make darn sure the air-distributor is actually TURNING when you turn the prop by hand.
--
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mark.bitterlich(at)navy.m
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| Posted: Mon Jul 12, 2010 7:15 am Post subject: Starter sequence M14 |
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That info was pulled from a direct translation of the M-14 manual written the folks who made the engine.
Mark
--
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billlang(at)live.com.au
Guest
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| Posted: Fri Jul 16, 2010 11:23 pm Post subject: Starter sequence M14 |
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SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air as the starter is pushed. Pull started and ran it for half hour. Expecting some rotation with starter, but still the POP of air not turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Cessnock and do an overnight stocktake for me
Any One Bueller?
Anyone?
Bill
[quote] Subject: RE: RE: Starter sequence M14
Date: Mon, 12 Jul 2010 11:13:19 -0400
From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
--> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich(at)navy.mil>
That info was pulled from a direct translation of the M-14 manual written the folks who made the engine.
Mark
--
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cjpilot710(at)aol.com
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| Posted: Sat Jul 17, 2010 4:22 am Post subject: Starter sequence M14 |
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That loud POP you hear is the air solenoid opening. It might be that valve is not opening thus no air to the starter valve.
Have you checked that the engine is actually rotating the shaft for the starter valve?
As I understand it,
Air enters the start valve. The valve directs it to a cylinder that is just passed TDC of a compression stock. That piston is pushed down rotating all the gearing in the accessory section. That rotation than moves the start valve to the next position.
I would remove the starter and pull the engine though, and double check that engine is rotating the valve drive.
Have you had the starter a part? I am not sure how the starter built, but it might be something internal with the starter itself.
Jim "Pappy" Goolsby
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dsavarese0812(at)bellsout
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| Posted: Sat Jul 17, 2010 4:42 am Post subject: Starter sequence M14 |
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According to the Task Card 204 in the M14 manual, the correct procedure is to first position the engine at 12 degrees after TDC on the #4 cylinder. Then rotate the prop in its normal direction back to 8 degrees after TDC. This is where you set the air distributor. The instructions in task card 204 say at this point to set the slide to where the inner hole opens for 1 mm. There is an inner and an outer hole in the air distributor slider.
Dennis
[quote] ---
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rsdie_1(at)yahoo.com
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| Posted: Sat Jul 17, 2010 5:47 am Post subject: Starter sequence M14 |
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Bill,
I'm including photo's and the procedure I followed on setting the timing for the distributor. Do not feel that you are the only one that has experienced massive frustration on this task, it took me three times just to get it close enough to start the engine, that is where I left it so I can fly this summer. You are defiantly on the right course. Be sure to know that you are aligning two separate things here.
Hope this helps, the photos are of the setting where I had success. Hang in there, and good luck
Scott Dierolf
[img]file:///Users/scottdierolf/Desktop/DSC03707.jpg[/img]
Timing Start Distributor- M14-P
1) Turn the propeller shaft until the piston of the cylinder number 4 is at 8 degrees after TDC on power stroke as measured at the propeller shaft. Because the gear ratio of the gearbox (0.658) actually the piston is at 12 degrees after TDC if it is considered the crankshaft angle. Remove the plug and the gasket from the top of the air distributor.
2) Remove the air injection lines, supply hose, and tach generator (if installed) from the distributor body.
3) Remove the air distributor assembly.
4) Adjust the position of slide valve of the air distributor on the air distributor cover according to the sketch above-
Looking inside of the distribution cover 9 holes correspond to each air start line.
Each fitting it is stamped its cylinder number.
The slide valve has to be set with the inner window aligned to cylinder #4 with an opening of 1 millimeter over the hole in the rotation sense of the slide valve. Looking on the inside of the air distributor body the rotation sense of the slide valve is counterclockwise.
5) Re-align the driving splines such that the air distributor can be re-installed without disturbing the alignment of the slide valve.
6) Install the air distributor and connect the lines, hose, and tach generator.
DO NOT Overtorque the nuts securing the lines to the distributor fittings.
SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air as the starter is pushed. Pull started and ran it for half hour. Expecting some rotation with starter, but still the POP of air not turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Cessnock and do an overnight stocktake for me
Any One Bueller?
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yakplt(at)yahoo.com
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| Posted: Sat Jul 17, 2010 12:20 pm Post subject: Starter sequence M14 |
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Dennis, it looks like my "translation" version on CD missed a step. Sorry about that Bill. But, seriously, being off 4 degrees should not cause that darn thing not to even spin at all.
Bill, ... Dennis said: "There is an inner and an outer hole in the air distributor slider."
Did you catch that?
Mark
--- On Sat, 7/17/10, A. Dennis Savarese <dsavarese0812(at)bellsouth.net> wrote:
[quote]
From: A. Dennis Savarese <dsavarese0812(at)bellsouth.net>
Subject: Re: RE: Starter sequence M14
To: yak-list(at)matronics.com
Date: Saturday, July 17, 2010, 8:42 AM
#yiv1749091937 .hmmessage P { PADDING-BOTTOM:0px;MARGIN:0px;PADDING-LEFT:0px;PADDING-RIGHT:0px;PADDING-TOP:0px;} #yiv1749091937 .hmmessage { FONT-FAMILY:Verdana;FONT-SIZE:10pt;} According to the Task Card 204 in the M14 manual, the correct procedure is to first position the engine at 12 degrees after TDC on the #4 cylinder. Then rotate the prop in its normal direction back to 8 degrees after TDC. This is where you set the air distributor. The instructions in task card 204 say at this point to set the slide to where the inner hole opens for 1 mm. There is an inner and an outer hole in the air distributor slider.
Dennis
[quote] ---
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billscully_99(at)yahoo.co
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| Posted: Sat Jul 17, 2010 2:18 pm Post subject: Starter sequence M14 |
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Hi Scott; sorry , believe you reached the wrong "Bill". Never asked this question. Good Luck.
Regards:
Bill Scully
From: Scott Dierolf <rsdie_1(at)yahoo.com>
To: yak-list(at)matronics.com
Sent: Sat, July 17, 2010 6:47:15 AM
Subject: Re: RE: Starter sequence M14
Bill,
I'm including photo's and the procedure I followed on setting the timing for the distributor. Do not feel that you are the only one that has experienced massive frustration on this task, it took me three times just to get it close enough to start the engine, that is where I left it so I can fly this summer. You are defiantly on the right course. Be sure to know that you are aligning two separate things here.
Hope this helps, the photos are of the setting where I had success. Hang in there, and good luck
Scott Dierolf
Timing Start Distributor- M14-P
1) Turn the propeller shaft until the piston of the cylinder number 4 is at 8 degrees after TDC on power stroke as measured at the propeller shaft. Because the gear ratio of the gearbox (0.658) actually the piston is at 12 degrees after TDC if it is considered the crankshaft angle. Remove the plug and the gasket from the top of the air distributor.
2) Remove the air injection lines, supply hose, and tach generator (if installed) from the distributor body.
3) Remove the air distributor assembly.
4) Adjust the position of slide valve of the air distributor on the air distributor cover according to the sketch above-
Looking inside of the distribution cover 9 holes correspond to each air start line.
Each fitting it is stamped its cylinder number.
The slide valve has to be set with the inner window aligned to cylinder #4 with an opening of 1 millimeter over the hole in the rotation sense of the slide valve. Looking on the inside of the air distributor body the rotation sense of the slide valve is counterclockwise.
5) Re-align the driving splines such that the air distributor can be re-installed without disturbing the alignment of the slide valve.
6) Install the air distributor and connect the lines, hose, and tach generator.
DO NOT Overtorque the nuts securing the lines to the distributor fittings.
SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air as the starter is pushed. Pull started and ran it for half hour. Expecting some rotation with starter, but still the POP of air not turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Cessnock and do an overnight stocktake for me
Any One Bueller?
[quote][b]
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