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  #1  
Old 07-15-2017, 02:40 PM
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Thermos Thermos is offline
 
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Default Getting oil drips out of an unfinished cowling

A question for VAF fiberglass experts -

I've been working on fitting my lower cowl, and it's been staying on the airplane for a few days at a time. I didn't notice a few, very slow, oil drips from somewhere on the engine and now I've got some oil stains on the cowl. I had always planned to seal the cowl interior with epoxy, but I'm assuming that I need to get as much of the oil out as possible before I do. Any suggestions?

Thanks in advance,

Dave
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Last edited by Thermos : 07-15-2017 at 02:43 PM.
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Old 07-15-2017, 04:14 PM
Neal Trombley Neal Trombley is offline
 
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Oil cooler seems to me a popular choice
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  #3  
Old 07-15-2017, 04:50 PM
TX7A TX7A is offline
 
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I've used Coleman fuel as a de-greaser and it seemed to work well. Keep blotting it with a clean saturated rag. Then get epoxy on it while its clean.

As a side note, I used left over epoxy to thoroughly coat the inside of my cowl. Then I used white high-temp gloss engine enamel. The system has held up well although I only have about 90 hrs. on the plane. There are always better way$.
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Old 07-15-2017, 06:02 PM
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Quote:
Originally Posted by Neal Trombley View Post
Oil cooler seems to me a popular choice
Not sure what you mean...?
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Last edited by Thermos : 07-15-2017 at 06:18 PM.
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Old 07-15-2017, 06:08 PM
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rv6builder rv6builder is offline
 
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I used laquer thinner on a saturated rag, seemed to do the trick. I've epoxied over the area now and it seems to have stuck.


Alex
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Old 07-15-2017, 06:32 PM
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Quote:
Originally Posted by TX7A View Post
I've used Coleman fuel as a de-greaser and it seemed to work well. Keep blotting it with a clean saturated rag. Then get epoxy on it while its clean.
Quote:
Originally Posted by rv6builder View Post
I used laquer thinner on a saturated rag, seemed to do the trick. I've epoxied over the area now and it seems to have stuck.
Alex, Sam -

Thanks, I've got some of each and give them a try. Glad to hear that the epoxy stuck well over the cleaned area.

Best,

Dave
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Old 07-15-2017, 06:35 PM
Stoo Stoo is offline
 
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K2r spot remover or fuller's earth will draw the oil out. Using a solvent will tend to wash some of the oil in deeper.
Stewart Willoughby, 6 panel.
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Old 07-15-2017, 06:43 PM
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snopercod snopercod is online now
 
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Default Acetone

I recommend acetone. Wipe it on with a saturated rag and then wipe off the residue with a clean dry rag. The acetone dissolves the oil and the dry rag removes the oil along with the acetone. If you let the acetone dry, the oil will still be there.
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Old 07-15-2017, 08:23 PM
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Mike S Mike S is offline
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Quote:
Originally Posted by Stoo View Post
K2r spot remover.

Using a solvent will tend to wash some of the oil in deeper.
Yep.......
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Old 07-15-2017, 09:04 PM
painless painless is offline
 
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Agree with the k2r Dave. I used it in my RC days to get oil off of balsa wood prior to covering when doing repairs.

Not that I ever had to actually *do* repairs since my RC piloting skills were so superior that I never crashed..... But if I *would* have, I might possibly have used k2r.......

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