Thread: Won't start after cam install

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  1. #1 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    Who knows... Maybe the whole harmonic balancer/crank key thing messed up the position of the crank sprocket. However, after removing the sprockets, I inspected them, and made sure the keyways were in good shape. Me and my dad re-assembled it, and made SURE the keys lined up. From what I see from turning the motor over, and watching the lifters and firing order, the engine is timed right.
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  2. #2 Re: Won't start after cam install 
    Turbo is the way to go. BillBoost37's Avatar
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    The balancer can't change the timing. That chain is the one and only thing that controls what happens to valve movement. That's what has me stumped
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  3. #3 Re: Won't start after cam install 
    GT Level Member RegalGS98s's Avatar
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    I don't remember, but when the harmonic balancer was on wrong, did the key come off the crank sprocket? So the cam didn't turn and the valves stayed in position so the pistons made contact? Like Bill said, pull the heads, or at least use an inspection camera of sorts through the spark plug hole.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
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  4. #4 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    Quote Originally Posted by RegalGS98s View Post
    I don't remember, but when the harmonic balancer was on wrong, did the key come off the crank sprocket? So the cam didn't turn and the valves stayed in position so the pistons made contact? Like Bill said, pull the heads, or at least use an inspection camera of sorts through the spark plug hole.
    No the key stayed in the sprocket, from what I saw. I'll look at my car tonight. Going home in 20 minutes.
    Last edited by Bedwards; 06-24-2011 at 06:42 PM.
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  5. #5 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    Pulled the head with the most pushrod damage...

    I knew it. The valves DID NOT touch the pistons. It was timed properly the entire time. This proves that having your balancer on incorrectly (awful ignition timing) can damage your pushrods.





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  6. #6 Re: Won't start after cam install 
    Killa Bee Scottydoggs's Avatar
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    better safe than sorry, glad its all intact, lets hope the second time around works out well.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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