Fouled Plugs
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Joined: Jun 2011
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Fouled Plugs
Hi...
I'm running a ZZ383 in my 1978 PCR. Car runs really well. I recently pulled the plugs and much to my surprise, the left hand plugs were all fine while all of the right hand plugs looked to be fuel fouled... I also get a little smoke out of the right hand side pipe. I'm running a Holley 4150 750 dual feed, vacuum secondaries on top of an Edelbrock "air" manifold (air space between carb and the cam chamber)...
Any ideas???
Thx,
Joel
I'm running a ZZ383 in my 1978 PCR. Car runs really well. I recently pulled the plugs and much to my surprise, the left hand plugs were all fine while all of the right hand plugs looked to be fuel fouled... I also get a little smoke out of the right hand side pipe. I'm running a Holley 4150 750 dual feed, vacuum secondaries on top of an Edelbrock "air" manifold (air space between carb and the cam chamber)...
Any ideas???
Thx,
Joel
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
Hi...
I'm running a ZZ383 in my 1978 PCR. Car runs really well. I recently pulled the plugs and much to my surprise, the left hand plugs were all fine while all of the right hand plugs looked to be fuel fouled... I also get a little smoke out of the right hand side pipe. I'm running a Holley 4150 750 dual feed, vacuum secondaries on top of an Edelbrock "air" manifold (air space between carb and the cam chamber)...
Any ideas???
Thx,
Joel
I'm running a ZZ383 in my 1978 PCR. Car runs really well. I recently pulled the plugs and much to my surprise, the left hand plugs were all fine while all of the right hand plugs looked to be fuel fouled... I also get a little smoke out of the right hand side pipe. I'm running a Holley 4150 750 dual feed, vacuum secondaries on top of an Edelbrock "air" manifold (air space between carb and the cam chamber)...
Any ideas???
Thx,
Joel
When a car is sitting slightly tilted to one side or the other fuel will drain into the lowest side during cold starts because raw gasoline collects on the bottom of the plenum then runs down the runners. Is your parking spot dead level or tilted a little bit?
Burning Brakes
Joined: Dec 2005
Posts: 992
Likes: 56
From: Baldwinsville, NY
Just thinking out loud, but I had a vacuum leak in my headlights system which is connected to the right side intake manifold. That made it run lean on one side and I over compensated by increasing the fuel on that side making the plugs foul.
I fixed the headlights and it works great now.
I fixed the headlights and it works great now.
