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Pontiac Forum: cylinder firing issue
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  #11  
Old December 29th, 2017, 09:32 PM
staplerplease staplerplease is offline
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the way I was told and according to the tools instructions, I was to disconnect the coils, do the test one cylinder at a time with the plugs out and crank the engine for four turns while watching the gauge, 1,2 and 4 hit about 90 and 3 was trying to move.
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  #12  
Old December 30th, 2017, 12:21 PM
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not sure why the instructions didnt tell you to have the throttle wide open but you have a dead cylinder and need to try a wet test to see if you have a valve problem or rings but unless you broke a ring it's probably the valves.
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  #13  
Old December 30th, 2017, 12:40 PM
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that's kinda what I was thinking. the car was given to me from a friend that was tired of messing with it, been sitting for a while. it needs a good cleaning anyways, I got a head gasket kit, just going to rebuild it, small 4 cylinder anyhow not that complicated. just didn't want to have to get that deep into it. plus this winter air makes it hard to get to.
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Old December 30th, 2017, 10:05 PM
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anyone know the intake and exhaust valve clearance and the steps to do it right ?.
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Old December 31st, 2017, 12:36 PM
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not clear on your question, as of yesterday you hadnt removed the head and I would assume you are sending it to a machine shop for a valve job?
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Old December 31st, 2017, 04:59 PM
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i'll be doing the work myself, I just need the valve lash adjustments. can't seem to find that info.
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  #17  
Old December 31st, 2017, 05:52 PM
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perhaps you should find a manual, Hanes, etc. to help you before you make a mistake. The engine has hydraulic lifters.
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Old January 10th, 2018, 08:25 PM
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well update on the head job, have it all torn down and the head gasket is leaking oil and one of the exhaust valves on the third cylinder is worn, one side looks like it was shaped oblonged , leaving a nice gap into the chamber, and the rest of the valves are all full of carbon,other than that everything else looks good. and the exhaust manifold has a crack down the middle.
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Old January 11th, 2018, 11:54 AM
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dont forget to have the head checked for warpage,
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