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wayne.e(at)grandecom.net
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 Posted: Fri Jun 19, 2009 5:53 am Post subject: Starter replacement |
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I don't know if any of you had the problem that I had with the starter or not. We installed the engine in 2005 with a Sky-Tec High Torque HT starter, which supposedly was the best one they had back then. Anyway, whenever I would do a cold start of the engine the prop would make about a half revolution and stop, like it didn't have enough power to it. I would then try again and it would turn fine.
Another RV friend of mine on my field told me about a new starter that Sky-Tec came out with that took less volts and turned the prop slower. It's a High Torque in Line NL. This friend was having the same problem with his 7, which has high compression pistons. We both switched to this new NL starter and it solved our problem. The new starter weighed a little bit more than my old one, something like a pound. I live in TX, so cold isn't a problem but I fly up into the cold country and was worried I wasn't going to get started on some cold day.
Sky-Tec are really good people located right here near me in Granbury, TX and they took my old starter in on trade against the new one and it cost me $250 to upgrade. I thought that was a pretty good deal.
Anyway I just thought I would pass this along in case any of you are experiencing the same problem as I had.
Wayne Edgerton
N602WT
[quote][b]
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Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
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| Posted: Fri Jun 19, 2009 6:23 am Post subject: Starter replacement |
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The NL is a good choice. Just be aware if you have any mag/ignition
issue that could cause a kickback, the NL starter has a shear pin to
protect the starter. Unfortunately, you have to remove the starter
from the engine to change the shear pin.
Another good choice is the Kelly Aerospace E-drive starter.
Advantages...uses clutch to protect against kickback, lower current
draw than Skytec. Both are high torque. Priced within $10 of each
other. Same warranty. Within 0.1lbs of each other. I've heard good
reports on both. I have a Skytec Flyweight on my aircraft, because it
was on it when I bought the plane. Has same issues you mention, has
needed 2 rebuilds in less than 800 hours.
On Fri, Jun 19, 2009 at 6:52 AM, Wayne Edgerton<wayne.e(at)grandecom.net> wrote:
| Quote: | I don't know if any of you had the problem that I had with the starter or
not. We installed the engine in 2005 with a Sky-Tec High Torque HT starter,
which supposedly was the best one they had back then. Anyway, whenever I
would do a cold start of the engine the prop would make about a half
revolution and stop, like it didn't have enough power to it. I would then
try again and it would turn fine.
Another RV friend of mine on my field told me about a new starter that
Sky-Tec came out with that took less volts and turned the prop slower. It's
a High Torque in Line NL. This friend was having the same problem with his
7, which has high compression pistons. We both switched to this new NL
starter and it solved our problem. The new starter weighed a little bit more
than my old one, something like a pound. I live in TX, so cold isn't a
problem but I fly up into the cold country and was worried I wasn't going to
get started on some cold day.
Sky-Tec are really good people located right here near me in Granbury, TX
and they took my old starter in on trade against the new one and it cost me
$250 to upgrade. I thought that was a pretty good deal.
Anyway I just thought I would pass this along in case any of you are
experiencing the same problem as I had.
Wayne Edgerton
N602WT
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
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Ron.McGann(at)thalesgroup
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| Posted: Sun Jun 21, 2009 2:59 pm Post subject: Starter replacement |
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For those flying, I would be keen to know how many more issues of
insufficient starter torque have been reported. I regularly need to
hold the starter engaged for several seconds before the engine is pushed
through compression (when the engine is cold). I was about to relace
the concorde battery with an odyssey, but perhaps I need a higher torque
starter??
Cheers
Ron
VH-XRM
Flying in Oz
--
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Sun Jun 21, 2009 3:14 pm Post subject: Starter replacement |
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You need to use the Skytec troubleshooting chart to determine if you are
getting sufficient voltage to the starter. Flyweight starters such as
the Skytec PM series have the highest current draw and least amount of
starting torque.
McGann, Ron wrote:
[quote]
For those flying, I would be keen to know how many more issues of
insufficient starter torque have been reported. I regularly need to
hold the starter engaged for several seconds before the engine is pushed
through compression (when the engine is cold). I was about to relace
the concorde battery with an odyssey, but perhaps I need a higher torque
starter??
Cheers
Ron
VH-XRM
Flying in Oz
--
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
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dlm46007(at)cox.net
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| Posted: Sun Jun 21, 2009 3:39 pm Post subject: Starter replacement |
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I think the problem may be current flow; I have the certified engine and
Lycoming supplied Skytec starter? I found that the single Odyssey 680 would
start the engine when new and fully charged. Since I fly a lot of short (in
AZ) flights I find that the battery does not get fully recharged between
starts. Fortunately I have two 680s that can be set in parallel and provide
about 1000A to get the starter motor turning the engine. I have a third 680
on the firewall that is strictly a backup avionics battery and aids in the
weight and balance problem if fully loaded. If I were designing again I
might consider an Odyssey 925 or 1200 for the rear battery and the 680 on
the firewall for avionics backup and W&B. As it is I have the equivalent of
the Odyssey 1200 power coming from two separate batteries.
--
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jump2(at)sbcglobal.net
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| Posted: Sun Jun 21, 2009 6:20 pm Post subject: Starter replacement |
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I installed a rg35xc battery instead of the rg25xc for two reasons, one starting, two for more reserve if alternator quits and after 70+ hrs the alternator did quit, (Thanks Van). But never have a problem cranking even with the efis and JPI on and they stay up and running during cranking. Also have the NL starter.
Patrick Thyssen
N15PT
--- On Sun, 6/21/09, McGann, Ron <Ron.McGann(at)thalesgroup.com.au> wrote:
[quote]
From: McGann, Ron <Ron.McGann(at)thalesgroup.com.au>
Subject: RE: RV10-List: Starter replacement
To: rv10-list(at)matronics.com
Date: Sunday, June 21, 2009, 5:58 PM
--> RV10-List message posted by: "McGann, Ron" <[url=/mc/compose?to=Ron.McGann(at)thalesgroup.com.au]Ron.McGann(at)thalesgroup.com.au[/url]>
For those flying, I would be keen to know how many more issues of
insufficient starter torque have been reported. I regularly need to
hold the starter engaged for several seconds before the engine is pushed
through compression (when the engine is cold). I was about to relace
the concorde battery with an odyssey, but perhaps I need a higher torque
starter??
Cheers
Ron
VH-XRM
Flying in Oz
--
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drfred(at)suddenlinkmail.
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| Posted: Sun Jun 21, 2009 7:24 pm Post subject: Starter replacement |
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I also had to up the battery to a 35x. I also found out that I had not
enough ground between the engine and the frame. I initially had two
flexible braided cables from the back of the engine to the ears on the
motor mount. Ended up running a cable from the starter body itself back
to my common firewall ground, where the electricity gets to flow back to
the battery in a number 4 wire. It helped, but I still have a high
compression engine and it can be tough to turn by hand, let alone the
starter. That is one of the issues I plan to check on at Airventure.
Fred Williams
McGann, Ron wrote:
[quote]
For those flying, I would be keen to know how many more issues of
insufficient starter torque have been reported. I regularly need to
hold the starter engaged for several seconds before the engine is pushed
through compression (when the engine is cold). I was about to relace
the concorde battery with an odyssey, but perhaps I need a higher torque
starter??
Cheers
Ron
VH-XRM
Flying in Oz
--
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http://www.matronics.com/Navigator?RV10-List |
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