Could this be a lifter?
#1
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Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
Could this be a lifter?
Ok guys well ever since I had put on my roller rockers, the front rocker on the #1 cylinder keeps coming loose. I tighten it to zero lash and after driving for a minute or two, it loosens enough to hear it again. So finally now when you start the car it runs fine and does not make any crazy noises, but then if you drive it for a few minutes and warm it up and then come to a stop at idle, you hear a "squeek squeek squeek squeek squeek" noise that gets faster with rpms. Could this be a roller lifter failing in that area?
#2
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Or a rocker stud pulling out.
Does the adjusting nut have proper resistance to turning? (as in, lock nut)
Does the adjusting nut have proper resistance to turning? (as in, lock nut)
#3
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Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
yes there is alot of resistance but I notice that the lock nut is not run down as far as most of the others, but i thought maybe a pushrod is bent because it spins about 180 degrees freely and then another 180 degrees tight and so on, but when i tighten it, the rockers comes loose quickly. The squeaking noise is getting worse.
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
No, not a lifter.
Sounds to me like a rocker arm roblem of some sort; like five7 said, maybe the rocker stud puliing out of the head, or maybe the ball is galled in its seat in the pivot of the arm.
Sounds to me like a rocker arm roblem of some sort; like five7 said, maybe the rocker stud puliing out of the head, or maybe the ball is galled in its seat in the pivot of the arm.
#5
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Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
But see guys its wierd as can be because if you open the hood and use your ears and listen around, the noise sounds to be coming from under the intake.
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Car: 91 firebird
Engine: 350 vortec heads
Transmission: t5
Axle/Gears: 3.08 open diff
im having the same problem.the difference here is that i have screw in studs.i tighten the rocker till the ticking stops and about 2 seconds later it gradually comes back to ticking.im thinking the lifter dosent have enough oil in it maby.i dunno.
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