Misfire after changing the bottom plugs
#1
Racer
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Location: Farnham, Surrey
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My C4 runs rough and backfires after changing the bottom plugs today.
I replaced the square catalytic converter gasket and the backfire is coming from that area. Should I use an exhaust sealant with this gasket?
Spent all day doing this - my first time. Also changed the gearbox and diff oils. I'm filthy and tired. Rapid responses would be really appreciated.![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Sorry if you already read this on Smartgroups.
I replaced the square catalytic converter gasket and the backfire is coming from that area. Should I use an exhaust sealant with this gasket?
Spent all day doing this - my first time. Also changed the gearbox and diff oils. I'm filthy and tired. Rapid responses would be really appreciated.
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Sorry if you already read this on Smartgroups.
Last edited by Roly Baldwin; 07-15-2003 at 11:13 AM.
#2
Burning Brakes
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It sounds like the gasket is not doing its job. I would suggest that you NOT use any type of sealant. Did you use a new gasket? Did you use new nuts and bolts, too? If so, what torque did you use to reconnect the exhaust?