I may have asked this before: The heat from the exhaust pipe 
beneath the main body of the vehicle burned off the undercoating 
and the surface was beginning to rust. I painted the rust with a 
rust converter so that is O.K. now. I plan to undercoat it again 
but not until I figure out some way to insulate the exhaust pipe. 
I do not have a problem with heat getting into the interior since 
I have replaced all the boots on top of the transmission. Any 
suggestions?


78 Fiat Spider
76 Alfa Romeo Spider

Herb Campbell wrote:
: I may have asked this before: The heat from the exhaust pipe 
: beneath the main body of the vehicle burned off the 
undercoating 
: but not until I figure out some way to insulate the exhaust 
pipe. 
. Any 
: suggestions?

Herb,
 If you pick up just about any Hot Rod mag. or Summit you will 
see exhaust wrap for headers. It should work for your pipe too. 
It says it reduces temp. so it might work.

John
jgriffiths@cableone.net
'67 Ferrari 275 GTB4-needs restoration
'79 Fiat spider- being restored w/Maserati BiTurbo engine
'80 Fiat spider- Daily runner

: see exhaust wrap for headers. It should work for your pipe too. 
: It says it reduces temp. so it might work.

DON'T use exhaust wrap unless this is a racing only vehicle 
(it doesn't sound like this is the case)
Headers and other exhaust parts need to be able to radiate heat 
and be cooled by air circulation. Header wrap keeps those exhaust 
parts *HOT*, which induces increased levels of stress... which 
leads to cracks/etc/etc.

...which of your two cars is this?
If it's the 124, there should be some shielding material of some 
sort already in place... if it's all mounted properly it 
shouldn't be all that close to the floor pans either.


- Matt Webb

Residential Design tech - Ovation Audio/Video Specialists
Louisville, KY
'78 124 Spider (daily driver)

< < Header wrap keeps those exhaust 
parts *HOT*, which induces increased levels of stress... which 
leads to cracks/etc/etc. > >

 actually, it allows the header metal to heat and cool slower, 
this reduces the stress level, makes them less brittle so they 
dont crack as easy.

-Todd

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