Decceleration backfire but only RH side

CWizard · #1 (**permalink**) 07-13-2006, 04:08 PM

Tom - Thanks for the info. I'll have to try some of these next time I change out the collector bolts.

JCoop · #2 (**permalink**) 07-13-2006, 06:25 PM

Thanks Tony,
I'll call Dennis tomorrow and order them. I have to talk to him about installing the steel baraided brake lines I got from him. I can't get the old lines off the Wilwood calipers. I think they epoxied the originals in there.

Tony Aprile · #3 (**permalink**) 07-13-2006, 06:50 PM

Ray
I would have to agree with PJS50, since your rear sidepipe bracket broke and the flange bolts were loose, change that gasket and you should be all set.
I have one gasket if you need one in a hurry !!!

Better that then the intake !!!

Tony

JCoop · #4 (**permalink**) 07-14-2006, 06:31 AM

Thanks for the offer, Tony. I won't be able to get to it until next week anyway so I'll just order from D.O. I also ordered some new nuts and bolts from Jegs.

JCoop · #5 (**permalink**) 09-17-2006, 04:19 PM

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.

ENTDOC · #6 (**permalink**) 09-17-2006, 04:40 PM

Ray ,are those BRM's off the CAV? I have an extra set for my CAV and was wondering if they would fit the Kirkham. chuck

JCoop · #7 (**permalink**) 09-18-2006, 04:44 AM

Quote:

Originally Posted by ENTDOC

Ray ,are those BRM's off the CAV? I have an extra set for my CAV and was wondering if they would fit the Kirkham. chuck

Doc,
They're new ones from Vintage Wheels and probably exact CAV duplicates. I got them to mount the racing tyres set for the CAV actually. Bob Lacey assured me they were an exact fit for the CAV. He was the original distributor for CAV GTs in the west coast. I wanted them also for the SPF double-duty, and the backspacing was 1/2" off (out), which suited me fine as the SPF wheels are set well in the wheelwell anyway. Upon trial fitting, I needed a pair of longer hub adapters for the rear, which Bob has in stock. When I go back to the road wheels, I have a pair of 1/2" spacers for the rear, or just mount them stock, just a bit more thread on the hub showing.