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Old 04-07-2013, 06:47 PM   #1
BananaSammiches
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Default Oil Buildup on Downpipe

Is oil build around the catalytic converter on the downpipe normal? It's a pretty thick layer of oil, but it's only around the underside of the catalytic converter right after the turbo. My buddy and I were looking at it, and we were able to scoop off globs of it with our fingers. The car runs and idles perfectly fine. There are no modifications done to it. I have an '06 WRX wagon with 41k miles.
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Old 04-07-2013, 06:51 PM   #2
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No it is not normal and ya need to find out where exactly it is coming from. Takes some pics and post them
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Old 04-07-2013, 07:06 PM   #3
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I don't know how well you'll be able to see it. This is the best I can do.

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Old 04-07-2013, 07:26 PM   #4
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No fluid should touch the exhaust components as that is a major fire risk. (Especially oils) Climb under the car and start cleaning it off, then monitor it (by climbing under and looking for leaks) often.

My guess. Turbo OR valve covers.
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Old 04-07-2013, 07:32 PM   #5
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My guess is a torn cv boot flinging grease onto the exhaust
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Old 04-07-2013, 07:37 PM   #6
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Quote:
Originally Posted by Francois_ View Post
My guess is a torn cv boot flinging grease onto the exhaust
^^ this definitely looks like grease from torn cv boot have a look and see
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Old 04-07-2013, 07:42 PM   #7
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I had actually already taken a look at the cv boot and it was completely fine.
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Old 04-07-2013, 07:49 PM   #8
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I think it is the CV (inner by the trans) also. Did you spin it around and look into all the low spots for cracks?
MCL
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Old 04-07-2013, 07:53 PM   #9
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Quote:
Originally Posted by WickedRydaX View Post
I think it is the CV (inner by the trans) also. Did you spin it around and look into all the low spots for cracks?
MCL
Yes. I crawled underneath and inspected everything. Everything is intact and in good working order.
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Old 04-07-2013, 07:57 PM   #10
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The only thing I couldn't see was the oil lines going to the turbo.
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Old 04-07-2013, 09:14 PM   #11
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Quote:
Originally Posted by Francois_ View Post
My guess is a torn cv boot flinging grease onto the exhaust
yeppers...or maybe gear lube bein slung out

if it was oil, you would easily see where it was coming from....and oil usually wont make thick 'globs' like grease or gear lube will.....also...the SMELL should tell you what it is
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Old 04-07-2013, 10:07 PM   #12
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Quote:
Originally Posted by Uncle Scotty View Post

yeppers...or maybe gear lube bein slung out

if it was oil, you would easily see where it was coming from....and oil usually wont make thick 'globs' like grease or gear lube will.....also...the SMELL should tell you what it is
Hmmm. But if the cv boot on the right side is completely intact, what else could it be?
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Old 04-07-2013, 10:27 PM   #13
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Quote:
Originally Posted by BananaSammiches View Post
Hmmm. But if the cv boot on the right side is completely intact, what else could it be?
it could be that it really ISNT intact and the grease is slinging out the end past the clamp
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Old 04-08-2013, 12:38 AM   #14
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If that catches fire... your whole car is going to go up in flames.



Literally.... flames.
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Old 04-08-2013, 10:19 AM   #15
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Quote:
Originally Posted by Uncle Scotty View Post
it could be that it really ISNT intact and the grease is slinging out the end past the clamp
^^This! I was changing my oil yesterday and found grease being pushed past the outer clamp on my CV (fortunately, it's on the driver's side).
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Old 04-08-2013, 10:48 PM   #16
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Quote:
Originally Posted by DHRDAN View Post
If that catches fire... your whole car is going to go up in flames.



Literally.... flames.
ive seen the power steering line fail right there next to the up pipe and torch 2 cars......once it ignites and gets going...that's it....done deal

this is why i ALWAYS suggest that anyone who wraps any of the exhaust....should get some super HD al foil(or the HD al foil tape) and wrap THAT around heat wrap.....helps prevent the wrap turning into a wick and keeping the fire burning
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Old 04-08-2013, 10:52 PM   #17
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Quote:
Originally Posted by WMCCook29 View Post
^^This! I was changing my oil yesterday and found grease being pushed past the outer clamp on my CV (fortunately, it's on the driver's side).
and you are super lucky that it only takes a few minutes to fix that!!!

just get some cv grease and one of those cake decorator thingies and load the grease in it and after you cut the band off, push the boot back and squeeze in the grease and put a new band on and done in a half hour

http://static.ddmcdn.com/gif/icing_1.jpg
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Old 04-09-2013, 02:13 AM   #18
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You could check to see if your tranny dipstick was pushed in all the way. Just a thought.
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Old 04-09-2013, 08:52 AM   #19
WMCCook29
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Quote:
Originally Posted by Uncle Scotty View Post
and you are super lucky that it only takes a few minutes to fix that!!!

just get some cv grease and one of those cake decorator thingies and load the grease in it and after you cut the band off, push the boot back and squeeze in the grease and put a new band on and done in a half hour

http://static.ddmcdn.com/gif/icing_1.jpg
Thanks for the suggestion!
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