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saolesen(at)sirentel.net
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 Posted: Thu Aug 23, 2007 6:50 pm Post subject: Tough nut on SD-20 |
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If you are using an SD-20 and a 90 degree oil filter adapter on your
RV-10 you will find that placing and tightening the lower inboard nut
on the alternator is very difficult. I thought about taking the oil
filter adapter off but then it looked like I would have similar
problems with the bolts on the adapter. The problem is that the
space is so limited that if you can hold the nut to the threads of
the stud you can't turn it. After trying off and on for a week I
finally came up with a solution. I hot glued the nut to the outside
of a 1/2" router bearing and then I glued a small piece of sheet
metal to the hole in the center of the bearing making sure it was
free to spin. A 90 degree bend in the sheet metal at the bearing got
the nut lined up with the stud. I was finally able to get the nut
on by holding it in position and my wife spun it on the stud.
Breaking the hot glue joints is easy but the nut is still not tight.
To tighten the nut I used a tool from Aircraft Tool Supply the Rapco
vacuum pump wrench # RA716 ($26.95)which after a small bend did the
job nicely. I've enclosed a couple of photos.
I hope none of you guys are going to tell me there is a really easy
way to do this.
Sheldon Olesen
#40080 Finishing baffling
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Deems Davis
Joined: 09 Jan 2006
Posts: 925
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| Posted: Thu Aug 23, 2007 7:51 pm Post subject: Tough nut on SD-20 |
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When BPE built my engine Allen said that if I'd send him the SD-20
they'd install it during the build, he said it would be a !#$$!$
afterward, now I know.
THANKS Allen!
Deems Davis # 406
'Its all done....Its just not put together'
http://deemsrv10.com/
Sheldon Olesen wrote:
| Quote: | If you are using an SD-20 and a 90 degree oil filter adapter on your
RV-10 you will find that placing and tightening the lower inboard nut
on the alternator is very difficult. I thought about taking the oil
filter adapter off but then it looked like I would have similar
problems with the bolts on the adapter. The problem is that the space
is so limited that if you can hold the nut to the threads of the stud
you can't turn it. After trying off and on for a week I finally came
up with a solution. I hot glued the nut to the outside of a 1/2"
router bearing and then I glued a small piece of sheet metal to the
hole in the center of the bearing making sure it was free to spin. A
90 degree bend in the sheet metal at the bearing got the nut lined up
with the stud. I was finally able to get the nut on by holding it in
position and my wife spun it on the stud. Breaking the hot glue
joints is easy but the nut is still not tight. To tighten the nut I
used a tool from Aircraft Tool Supply the Rapco vacuum pump wrench #
RA716 ($26.95)which after a small bend did the job nicely. I've
enclosed a couple of photos.
I hope none of you guys are going to tell me there is a really easy
way to do this.
Sheldon Olesen
#40080 Finishing baffling
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BPA(at)bpaengines.com
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| Posted: Fri Aug 24, 2007 5:06 am Post subject: Tough nut on SD-20 |
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There is...Snap-On makes a 7/16 open end angle wrench. It's worth having
in the tool box.
Oh, you're welcome Deems. NICE COWL
Allen
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pitts_pilot(at)bellsouth.
Guest
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| Posted: Fri Aug 24, 2007 5:07 am Post subject: Tough nut on SD-20 |
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Easy??? There probably isn't an 'easy' way!!!
I find a set of crows foot wrenches invaluable in places like this. For
starting a nut on a hard to reach stud, a flexible 'grabber' works
wonders. Works for washers too.
If I can't get the nut to grab the first thread with the grabber, I
resort to using a small phillips screwdriver to guide the
nut onto the stud and a flat bladed screwdriver to spin the nut until it
catches.
Linn
Sheldon Olesen wrote:
| Quote: | If you are using an SD-20 and a 90 degree oil filter adapter on your
RV-10 you will find that placing and tightening the lower inboard nut
on the alternator is very difficult. I thought about taking the oil
filter adapter off but then it looked like I would have similar
problems with the bolts on the adapter. The problem is that the
space is so limited that if you can hold the nut to the threads of
the stud you can't turn it. After trying off and on for a week I
finally came up with a solution. I hot glued the nut to the outside
of a 1/2" router bearing and then I glued a small piece of sheet
metal to the hole in the center of the bearing making sure it was
free to spin. A 90 degree bend in the sheet metal at the bearing got
the nut lined up with the stud. I was finally able to get the nut
on by holding it in position and my wife spun it on the stud.
Breaking the hot glue joints is easy but the nut is still not tight.
To tighten the nut I used a tool from Aircraft Tool Supply the Rapco
vacuum pump wrench # RA716 ($26.95)which after a small bend did the
job nicely. I've enclosed a couple of photos.
I hope none of you guys are going to tell me there is a really easy
way to do this.
Sheldon Olesen
#40080 Finishing baffling
|
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bcondrey
Joined: 03 Apr 2006
Posts: 580
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| Posted: Fri Aug 24, 2007 8:41 am Post subject: Tough nut on SD-20 |
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There is a Snap-on wrench that Ed Hayden told me about last year and
that made it a LOT easier. It was still difficult but as I recall, I
was able to install the alternator in a single evening with the engine
on the mount.
Bob
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