lifter? push rod? something else? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-09-2010, 07:54 AM   #1
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Default lifter? push rod? something else?

ok ive been looking though the forums at alot of diffrent posts about ticks and knocking nosies witch have worried me a bit but i have a video of what my noise sounds like

VIDEO - http://www.youtube.com/watch?v=pJle-5qws2c

it happened after i was a wot racing a mustang, there was loss in power after that no real ticking nosie then a day after i started hearing a ticking noise in the motor witch has gotten a little louder as time went on. the bonnie still runs good when your driving normal, when you go wot in frist it will take it fine but when it shiftes to second it ticks louder and bogs down

and if its hard to read what im typing im sorry just tell me and ill try at fix it but i cant take my car apart at all i got to go to work. thanks in advance
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Old 04-09-2010, 08:39 AM   #2
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While i can't see the Tube from work...lemme toss out a couple things.

Pull all the plugs and inspect them. Any marks or bent electrodes should be noted, photographed and posted.

The way you describe what happened suggests a chipped piston. Although w/o seeing the vid..that'* a little off the hip.
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Old 04-09-2010, 08:55 AM   #3
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Remove the valve cover and inspect. Bent push rod, damaged rocker, broken spring. I'll take a stab and say broken spring.
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Old 04-09-2010, 08:27 PM   #4
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well i was going to change the oil to see if that mit help anything and well there was tiny metal shavings in the oil. also i did what bill said and check the spark plugs and looky what i found



front left cylinder.

i only looked at the front 3 btw

so its looking like the motors probly done?

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Old 04-09-2010, 08:32 PM   #5
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Can't tell in the picture, but it the end gone, or was it smashed? Do a compression test on that cylinder and see how it compares with the other cylinders.
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Old 04-09-2010, 09:25 PM   #6
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it was gone and how woul di go about doing that
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Old 04-09-2010, 09:31 PM   #7
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You would need to get a compression tester, see if you can rent one.

Right now I would say it sounded bad because that cylinder was not firing. Put a new plug in and see if that helps. When the end brakes off it tends to go out the exhaust.
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Old 04-10-2010, 02:47 AM   #8
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Typically when a piece of piston is missing etc compression won't be compromised.

To double check things, I'd change the oil and all the plugs...then give it a try and see if it'* still making the noise. It doesn't fully sound like a bad motor, obviously the shavings aren't a good sign. I have a feeling about it though.
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Old 04-10-2010, 08:48 AM   #9
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well i changed the oil and put a new plug in i would have to say its not as loud but its still there im going to check the back ones l8r today i just got off work and im going to sleep soon, but on my way home i wanted to cry lol there was a grand prix and i couldnt race him cuz of my problem and he took off it made me sad lol


How much mite a series 2 motor coast me jw
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Old 04-10-2010, 09:53 AM   #10
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I still think a compression test is a good idea. If that piece got jammed on a valve seat it could be preventing the valve from closing all the way.
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