stuck lifter? - Team Camaro Tech
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post #1 of 22 (permalink) Old Dec 19th, 04, 11:29 PM Thread Starter
 
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gettin a clickey click noise that in cant put my finger, or ear on for that matter on the passenger side, its present when idling @ 800RPM, all the way up to 2000+ then it goes away, at one point i thought it was the idler arm hitting my super comps, but at this point i fear it may be worse :-\

the motor idles smooth according to the tack, im certain my timing is off a bit, as i did it by ear (before one of you chimes in saying this is the problem, IT HAS ALWAYS DONE THIS, EVEN WITH PERFECT TIMING) and yes, i am running 91 octane gas....


is there any way for me to ABSALOUTELY diagnose that it is a stuck lifter? or what do you guys think it is for that matter?

i took the car out for a spin tonight, and stomped on the pedal a bit, i definately saw a backfire up into my air cleaner...

advice appreciated, this is my daily driver so i dont want to go tearing the car apart immediately
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post #2 of 22 (permalink) Old Dec 20th, 04, 01:45 AM
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if its has hydraulic lifters its is probably collapsed.


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post #3 of 22 (permalink) Old Dec 20th, 04, 02:15 AM
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Add a quart of Marvel Mystery Oil. Run it for 1000 miles, change oil & filter.

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post #4 of 22 (permalink) Old Dec 20th, 04, 05:05 AM
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It sounds like its your fuel pump.take something long and place it agains the pump and your ear and see if that is the noise. Nick
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post #5 of 22 (permalink) Old Dec 20th, 04, 05:29 AM
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An old trick to identify which lifter is the problem, pull teh valve cover, with the engine at idle, use a large srewdriver to push down on the pushrod end of the rocker. As you do this, the lifter will collapse. You will hear the ticking that is out of sinc with your ticking noise. Do each rocker until you hear one tick. That is the bad lifter. With engine off, trickle a little carb cleaner (drops, not alot)down the pushrod and let the car sit a bit. Start and let run. If the tick remains, replace the lifter. Now, IF you have a hole in the manifole big enough to fish a lifter out of, such as an old style oil fill or the distributer hole, using a slim magnetic pick-up tool, pull the rocker and pushrod out, slip the magnetic tool down the pushrod slot and lift the lifter out. Kick it towards the hole in the manifold and again, using the magnetic tool, lift it out. Installng a new one is just the reverse of removing the bad one. If the old lifter is stuck and won't come out of it's bore, go to the old way and remove the manifold. Used to do this years ago when cars were simple.

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post #6 of 22 (permalink) Old Dec 20th, 04, 06:16 AM
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I usually refrain from using magnets on parts I plan to reuse. The part will become partially magnetized and pick up small metal particals from the oil. I might be tempted to do the removal but not the install of a fresh part with a machined surface. Just my opinion.

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post #7 of 22 (permalink) Old Dec 20th, 04, 07:28 AM Thread Starter
 
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i did a search right before i posted this, im going to take everetts advice and try some of the good ol snake oil,

mrcool, it cant be my fuel pump, since i dont have a mechanical pump anyway, electric holley mounted near the tank in the rear
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post #8 of 22 (permalink) Old Dec 20th, 04, 08:53 AM
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Make sure your alternator belt is not too tight.
Sometimes the bearing being pulled too hard can sound like a stuck lifter.
Funny but true. Try useing a broomstick handle placed to your ear to see if you can isolate the sound.
watch out for the belts. no luck there then
remove each belt one by one.
Alot of diferent things can make that sound.
Good luck - let me know what you find.
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post #9 of 22 (permalink) Old Dec 20th, 04, 10:02 AM Thread Starter
 
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i am definately sure it is not my belt

replaced alternator few days ago, checked for just that problem, again, this noise has been present since i bought the car, originally i thought it was just a blown head gasket, and the sound from a nearly open port sucking in cold air, but as i rememedied that, along witht the idler arm / header clearance, im almost certain it is a valvetrain issue
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post #10 of 22 (permalink) Old Dec 20th, 04, 10:59 AM
 
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I have heard running a can of Seafoam in the crankcase for a short time will clean the lifter out if it dirty. If is just shot then you'll have to replace. BTW nothing beats Seafoam for removing carbon deposits from combustion chamber. (run thru the fuel line)
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post #11 of 22 (permalink) Old Dec 20th, 04, 08:26 PM
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Snake oil worked for me with stuck/noisy lifters. I will never put MMO in my gas tank again though. Noting but problems. It broke loose junk in the tank and I had to change filters two times. the real small stuff made it to the carb and got in the needle and seat causing problems. After two carb cleanings all is back to normal and I guess I have a clean gas tank too.

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post #12 of 22 (permalink) Old Dec 21st, 04, 08:23 AM
 
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Joe,

To me it is SOP to put an inline "can" fuel filter on my cars b/c of just what you said!!

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post #13 of 22 (permalink) Old Dec 21st, 04, 03:21 PM
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it might be your fuel pump pushrod aswell.
those are known to give out.


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post #14 of 22 (permalink) Old Dec 21st, 04, 05:48 PM
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PDQ;

I had the can type filters that are clear made by Fram, cost about $3.00 each. It was amazing the just that came trough the tank after putting that stuff in it. Could have come out of the fuel line? I am not seeing much stuff in it now but will be chaning it out in the next month just to be sure I don't have to pull the top off the Edelbrock 625 again.

Joe

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post #15 of 22 (permalink) Old Dec 21st, 04, 06:14 PM Thread Starter
 
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well, the noise persists, i tried the screw driver trick, evne pulled off the valve cover to feel the rockers themselves, i can move the intake and exhaust rocker for every single cyldiner except the #8, (i think) cylinder closest to the firewall on the passenger side.


im not sure if its normal or not to be able to move the rocker from side to side, any input ?
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