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Speedy11(at)aol.com
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 Posted: Mon Oct 18, 2010 7:26 pm Post subject: Oil Cooler Mount Cracking |
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Matt,
My engine shakes a lot, too. Especially during start and shutdown.
I have cracking in the baffles and one exhaust pipe was hitting the engine mount.
I don't have any oil cooler issues because I remote mounted it, but I've heard that most guys who mount the cooler on the rear of baffles have continuous problems with cracked mounts.
It seems like Dick Martin came up with a good mount for the baffles that doesn't crack and has improved air flow. He moved it aft and tilted it downward.
Maybe he will see your post and offer advice.
Stan Sutterfield
| Quote: | I took the cowling off the 'ol RV-8 today to have a look around at about the 112
TTSN hour mark. Most everything looked okay except for one major issue. The
outside, lower back mount on the oil cooler is totally cracked off. The outside,
lower front mount also has a long crack. At this point, the upper part
of the mount seems alright. Also the inside mounts show no signs of cracks.
The rear flange on the baffling has a small crack where the left rear part rivets
to the back baffle that the oil cooler is bolted to. No oil leaks of any
kind at this point. See attached pictures from my Cell Phone.
So what the heck? The engine shakes quite a bit on startup and shutdown (smooth
as glass during normal ops), but this doesn't really seem like rotational shake
damage. Although, it must be. Obviously I'm going to have to remove the
oil cooler and have it repaired (that can be done, right?). But just "fixing"
the mounting flanges isn't going to solve the "problem".
What are lister's opinion on what's going on here and what could be done to prevent
it?
Interestingly, I noted that the #4 grounding cable that is attached to a bolt hole
right underneath the oil cooler also had the lug sheered off. There is "service
loop" on the cable, but #4 isn't really flexible so its not particular
effective. Guess I need more. The point though, is, that it seems like the engine
shook pretty hard. I don't see any other signs of "issues" related. The
mounts and bolts seem solid and tight.
Thoughts? |
[quote][b]
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Speedy11(at)aol.com
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| Posted: Tue Oct 19, 2010 7:04 am Post subject: Oil Cooler Mount Cracking |
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Here is a link where you can see what Dick Martin
http://www.romeolima.com/RV8/Cowl.htm
Stan
[quote][b]
| | - The Matronics RV8-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV8-List |
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