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March 16th, 2010 | 08:17 PM
#1
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Joined: Jun 2009
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Well...Where do I start? Thanks for all those who gave me the help on turning her over after sitting a while, but as I was inspecting and cleaning the plugs, #7 looked "odd". Needless to say, it was damaged "heavily", the end pushed in and the electrode gone. Well, I showed it to my buddy Phil who is helping out on this project, and he said...Not Good!. Could have a broken value he said. Sigh...and sigh again
. What is the worst it "could be"? How should I go about looking into it? Total removal of manifolds and heads? Ouch! Your input..please.
'72...I ain't quitting you!...for now.
. What is the worst it "could be"? How should I go about looking into it? Total removal of manifolds and heads? Ouch! Your input..please. '72...I ain't quitting you!...for now.
March 16th, 2010 | 08:23 PM
#2
Registered User
Joined: Nov 2007
Posts: 9,127
From: Rathdrum, Idano
Sorry, there isn't any way around it you need to pull the intake manifold and the head to see whats going on. To try and run it they way it is would only cause further damage to the engine. It may be less damage then you think, but you have to bit the bullit and look. Best of luck to you. Keep us posted on what you find
March 16th, 2010 | 08:25 PM
#3
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Joined: Sep 2006
Posts: 13,844
From: Medford, Oregon
Hi Steve
#7, Thats on the driver side closest to the firewall, correct? If so that will be a hard one to use a bright flashlight and mirror to glimps the top of the piston. I think pulling the top end will be the only sure way to see what's happened inside. John
#7, Thats on the driver side closest to the firewall, correct? If so that will be a hard one to use a bright flashlight and mirror to glimps the top of the piston. I think pulling the top end will be the only sure way to see what's happened inside. John
March 16th, 2010 | 08:33 PM
#4
GM Enthusiast
Joined: Jan 2007
Posts: 3,982
From: Long Island, New York
Do a compression test and compare the readings you get between each cylinder. If they are all about the same, within 5%, then throw a new plug in and drive it and see what happens. Certainly the cheapest route both time and money wise. If you can, post a pic of the plug.
March 16th, 2010 | 09:10 PM
#6
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Joined: Jun 2009
Posts: 63
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Guys...Will do on the compression test. Forgot to tell you all earlier, but we did put a fuel line down #1 and blew through it...with the oil cap off. No air movement, slight at best. But...when we did the bad cylinder, third in from #1, not the last one, we could feel air moving out the oil fill tube.
Any other advice? Thanks!
Any other advice? Thanks!
March 16th, 2010 | 10:29 PM
#7
is Fast Enough ...
Joined: Jul 2008
Posts: 1,308
From: dogtown
Cylinder chamber air in an oil passage is not good...
Was that the cylinder the one the rotor was pointing at, indicating tdc for that piston..?
In any case your leakdown test should hold pressure in a tdc cylinder or your head gasket is blown with a probability of chunked valve/piston ...
Was that the cylinder the one the rotor was pointing at, indicating tdc for that piston..?
In any case your leakdown test should hold pressure in a tdc cylinder or your head gasket is blown with a probability of chunked valve/piston ...
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