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diverrick 07-19-2013 07:30 PM
Burns from exhaust
 
I recently looked at a car that appeared to have had blistered paint above the exhuast
Seemed to be between the vents and the exhaust outlets. Is this common or is there something wrong here.
I looked like nice cooked paint, with blisters.

WardL 07-19-2013 10:35 PM
It is unusual and there is an issue. It could be as simple as a missing heat shield or the results of something worse.

mdross1 07-20-2013 07:04 AM
Wonder about clearance next thought would be motor mounts not up to snuff

diverrick 07-20-2013 02:44 PM
The damage appeared to be directly above the collector, right where it exits the fiberglass. It was straight up from the exhaust, not blowing back, so I am assuming maybe it occurred while not moving? Looked like radiant heat damage to me.
Paint was kinda brownish tinted.

tcrist 07-20-2013 03:38 PM
Could have been messing around and running without the side pipes. Maybe at the races?

lamaluv 07-20-2013 10:33 PM
My car has the exact blistered paint and it was caused by a shop forgetting to turn on the large floor fans while the car was being run on a chassis dyno. :mad:

Jamo 07-21-2013 02:32 AM
I don't have blistered paint above the pipes. :p

bill37341 07-21-2013 08:01 AM
I had a problem of blistering paint on a Cobra about 25 years ago, in the same area. I had used a lacquer based filler instead of bondo and the lacquer obviously hadn't cured. Heat from the exhaust caused the filler to blister. Ground the area back to the fiberglass, filled with bondo, problem solved. Fortunately, the paint wasn't metallic.

4pipes 07-21-2013 08:27 AM
Quote:
Originally Posted by Jamo (Post 1253993)
I don't have blistered paint above the pipes. :p
You may have blistering under the "censored" sticker on your avatar.:3DSMILE:

ERA 778 07-21-2013 11:00 AM
A friend had that happen when he was first starting up his car. Primary reason he gave: engine running way too lean at first and his not paying attention to all the excess heat.

tcrist 07-21-2013 12:05 PM
How far was his exhaust from the body? Some of the ones that I have seen were only 1/4" or closer. Mine were over 1/2" maybe even closter to 3/4". Does not look as good to have that big gap. But I did not worry about the paint burning or blistering.

This is not just on fiberglass cars either. Painted metal cars can/will have the same issue.


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