Exhaust leak

StateTroopCoupe · 09-24-2003, 09:06 PM

I have the stock manifolds and stock h pipe. Is it common to have an exhaust leak from where the manifolds connect to the the h pipe. I think I have a leak there because when the car is cold I hear a ticking from this area and when i shift i can hear a slight backfire from the area too. Could the exhaust leak cause the engine to backfire?
Thanks for any help

crazypete · 09-25-2003, 08:21 AM

Yup, dude, thats probably the cause of your backfire. There's extra oxygen getting in there and ther unburnt fuel is igniting.

The flange separates all the time for me, especially after I went to aftermarket headers. The mac's had some cheap studs that came out the first time I tightened the nut and they have been backing off at regular intervals ever since. You'll need about 2 extensions at least to reach the nut down there and it's loads of knuckle busting fun! =P

09-24-2003, 09:06 PM	#1
StateTroopCoupe Registered Member Join Date: Sep 2003 Location: Long Island Posts: 16	Exhaust leak I have the stock manifolds and stock h pipe. Is it common to have an exhaust leak from where the manifolds connect to the the h pipe. I think I have a leak there because when the car is cold I hear a ticking from this area and when i shift i can hear a slight backfire from the area too. Could the exhaust leak cause the engine to backfire? Thanks for any help

09-25-2003, 08:21 AM	#2
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	Yup, dude, thats probably the cause of your backfire. There's extra oxygen getting in there and ther unburnt fuel is igniting. The flange separates all the time for me, especially after I went to aftermarket headers. The mac's had some cheap studs that came out the first time I tightened the nut and they have been backing off at regular intervals ever since. You'll need about 2 extensions at least to reach the nut down there and it's loads of knuckle busting fun! =P __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

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