09-17-2006, 05:19 PM
|
 |
CC Member
|
|
|
Join Date: Feb 2006
Location: Glenwood Landing or Southampton,
NY
Cobra Make, Engine: Superformance, FRP460 Big Block
Posts: 975
|
|
Not Ranked
Update...gasket replaced, still pops.
After a few weeks of procrastinating, Olthoff Racing finally sent me the gasket for the header flange to collector joint. The old gasket showed where the leaks were, around the boltholes going towards the center. It appeared that the center "cross" created by the header tube ends were slightly recessed, thus creating sort of a concave cavity in the center of the gasket.(The other side was flat) So my friend Joe had this tube of Wurth exhaust gasket material that hardens like cement. I put enough of it around the center to mold it into somewhat of a flat surface throughout. Bolted up, let dry for 48 hrs.
Today I ran a very short time trial at the Vanderbilt Cup in Roslyn and she still pops upon letting off the throttle and after hard acceleration.
How can I test for leaks around the exhaust manifold area? I suspect the leak may be there. Any more ideas?
BTW, here's how she looked dressed up for the event, stickers, numbers, handcut slicks on BRM wheels and all. 
__________________
Ray
New York
SPF#1052 11mpg
CAV GT40 MONO29 9mpg
'94 35th Anniversary Rover Mini Cooper 32mpg
'01 MB CL600 V12 18mpg
'08 Volvo S80 18mpg
|
Threaded Mode
