HELP! i just pulled the plugs.......
Thread Starter
Instructor
Joined: Aug 2006
Posts: 231
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From: Arlington Tx
HELP! i just pulled the plugs.......
I just pulled the plugs on my vette and this is what they look like. Does this show a sign of blown head gasket? or what can you tell from this. They have about 10k on them TOPS! Huge loss of power and a fluxuating oil psi. No loud knocking though......
Instructor
Joined: Nov 2005
Posts: 207
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From: raleigh N.C.
antifreeze usually looks reddish brown on the exhaust valves and plugs.
I have seen fuel additives turn the plugs red also.
is the oil milky? you could get a shop to pressurize the coolant system.
compression test might also be a good idea.
I have seen fuel additives turn the plugs red also.
is the oil milky? you could get a shop to pressurize the coolant system.
compression test might also be a good idea.
Supporting Vendor
Joined: Oct 2004
Posts: 761
Likes: 68
Plug on the left definitely shows signs of detonation. Plug on right a little too. The blistering is the sign. The reddish brown is a nice proper color for good A/F.
At hot idle remove the oil fill cap. Put your hand close to the fill: one inch. Any 'puffing' (even if no smoke) is one or more cracked pistons and you are done. 'Puffing' is air moving in and out from crankcase from cracked piston(s). greg
At hot idle remove the oil fill cap. Put your hand close to the fill: one inch. Any 'puffing' (even if no smoke) is one or more cracked pistons and you are done. 'Puffing' is air moving in and out from crankcase from cracked piston(s). greg
Thread Starter
Instructor
Joined: Aug 2006
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From: Arlington Tx
ok....so i pulled it off and and checked and im not getting any puffing. I feel like i slight vibration i think but it does feel like puffing. I can put a kleenex over it and it doesnt move. So im guessing no puffing. I do hear on the passenger side a very quick ticking. Thats the side with the dirty spark plugs. The driver side looked fine. I did an oil change and found "1" small small scrap of metal flake, so i dont think a bearing is out. It sounds more top end. but i know i have pulled that valve cover and all the rockers seemed fine. Can it possibly be a lifter issue? maybe collapsed? the oil doesnt seem off and the coolant looks ok. So im not thinking head gasket completely......any more help???
Oh and it seems to have ignition issues above 3500 like sputtering? Can the distributor cause the issue with the plugs? how hard is that thing to get too? I know im leaking oil from the front and back side of the intake and im gonna replace that, but could the leak have destroyed the dizzy? No problems with normal driving just when i step on it.
Oh and it seems to have ignition issues above 3500 like sputtering? Can the distributor cause the issue with the plugs? how hard is that thing to get too? I know im leaking oil from the front and back side of the intake and im gonna replace that, but could the leak have destroyed the dizzy? No problems with normal driving just when i step on it.
Drifting
Joined: Nov 2003
Posts: 1,637
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From: Honeoye Ny
Bummer dude!
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Thread Starter
Instructor
Joined: Aug 2006
Posts: 231
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From: Arlington Tx
well i found one issue. the tps sensor seems to be stripped but i fixed that. Car runs pretty strong now. Still not back to normal. So i know its not something to bad but there is something wrong.
