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Bent Pushrods

This is a discussion on Bent Pushrods within the Internal Engine forums, part of the LSx Technical Help Section category; How can I tell If I have a bent pushrod? Any noises, maybe a miss?...

  1. #1
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    green
    1996 z28

    Bent Pushrods

    How can I tell If I have a bent pushrod? Any noises, maybe a miss?

  2. #2
    From my experiance you will hear a ticking sound. Its pretty loud but when i bent my pushrods it was pretty bad so i know right away. As for a slight bent pushrod i donno...

  3. #3
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    Thanks, it is ticking

  4. #4
    Pathelogical Liar BlackLT1Z28's Avatar
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    94 Camaro Z28

    A tick could also be a small exhaust leak or a needle bearing on a rocker arm.

  5. #5
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    Does anyone know how many coils a factory ls1 valve spring has?

  6. #6
    Sponsor autotrix's Avatar
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    They all tick, but sometimes louder that normal ticks should be addressed! With 178K miles, one tick became too loud one day, so I decided to pull a valve cover and inspect. The holes where the rods come up through the head had been perfect circles, now had ovals due to the rods rubbing up against the aluminum. I pulled one pushrod out and saw that it had a Mcdonalds arch to it. So I decided to pull another, and another with the same results. At that point I decided to replace them all. Some where so close to breaking that it is a wonder to me how the car ran at all.

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  7. #7
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    The best way is to put the car in N and turn it off then wait till its almost start turning then start it again if its a bent rad nothing will happen but if its a pressure plate it will snap it, its like $40 to replace the plate

  8. #8
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    98 Z28

    can u bend a pushrod in an automatic? My buddy says you can if you hit the rev limiter. I never heard that though

  9. #9
    Senior Member INMY01TA's Avatar
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    Pull em out and look at them. That's really the only way. If you have headers I wouldn't worry too much about the ticking, most do it.

  10. #10
    ban-one
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    its like 100 dollars for a set of chrome moly ones just buy a new set thats what my first mod is gonna be. its cheap insurance on your engine thats the way i look at it

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