Misfire Problem
#21
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it sounds like a broken piston skirt or exhaust leak . if it was a valve out of adjustment the ticking would still be present.when the plug wire was taken off. if this engine has forged pistons that would be my first place to look
#23
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My bet is on an exhaust leak. What did you use when you installed your header gaskets? I've found that unless I smear black RTV on both sides of the gasket they will blow out. Also, the gasket will compress after a few days of driving and if you don't retighten the header bolts the gasket blows out.
#24
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Sorry ! It seems that you already tried this !
You can try to use a stroboscopic light on cylinder #5 and look
at the damper. Try it at different steady engine RPM. If the damper
appears erratic with the strobe light on it : you can be sure it is really
a misfire, and certainly ignition related...
You can try to use a stroboscopic light on cylinder #5 and look
at the damper. Try it at different steady engine RPM. If the damper
appears erratic with the strobe light on it : you can be sure it is really
a misfire, and certainly ignition related...
#25
Race Director
Originally Posted by dwncchs
If you want to get rid of the tick and removing #5 does that -just leave the wire off !!!!! Sorry couldnt resist.Justin did you get the backfire problem fixed?-------- http://forums.corvetteforum.com/show....php?t=1410195
#26
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Well, it ran fine for a couple drives. Then I let it sit for a week, came back and I had the misfire. I will have to check the exhaust gasket.
#27
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Originally Posted by JustinD
Well, it ran fine for a couple drives. Then I let it sit for a week, came back and I had the misfire. I will have to check the exhaust gasket.
#28
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It was for a while, I don't know if it is there right now. I don't want to hammer it with that noise around.
Last edited by JustinD; 08-07-2006 at 01:59 PM.
#29
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Ok, well I pulled the spark plug wires apart and tightened down the header. The ticking noise seems to be gone. Now I just need to get it set just right so it runs like a champ. Also I hit it down to the floor and it seems that the backfire is not there either. It is all coming together very slooooowly.
#34
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I just had it out and the backfire is still there. I think it is a tuning issue now. I need to get the timing dialed in just right and have someone do my carb. when I got home and shut it off it dieseled a bit.
Last edited by JustinD; 08-07-2006 at 04:36 PM.