Thread: Won't start after cam install

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  1. #1 Re: Won't start after cam install 
    GT Level Member torq455's Avatar
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    I still think the timing marks are off by 180 degrees
    2002 GTP: K&N, 3.2 pulley, flipped mounts. ZZP SS headers, 180 stat, NGK TR6's, MSD wires, Reptile ported TB, ported S/C, ported LIM, Intense Stage II heads with larger Manley severe duty SS valves, Yella Terra 1.9 full roller rockers, LS6 springs, Racetronix fuel pump re-wire, Oil pressure "kit", JMB FWI. Mustang dynoed at 240 WHP, 272 WTQ.
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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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    Quote Originally Posted by torq455 View Post
    I still think the timing marks are off by 180 degrees
    Explain how that's possible on our motors please. Because I'm not aware of it being possible.

    When you line up the cam and balance shaft, then line up the cam and crank. The cam to crank is what's important. That's what keeps the pistons from hitting the valves. This isn't a distributor motor where you can have anything 180 off if the dots line up. The HB has a key and that tells the pcm when to fire a cylinder. But I've never seen ignition timing bend rods either.

    The pistons are going to have marks or be cracked in this motor. Head pulling needs to happen IMO.

    Sorry B.. I don't understand how this could happen if the marks on the cam and crank were always lined up. Do you have a picture that you can post/repost of the marks lining up?
    I drink..so consider that when reading my posts.

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  3. #3 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    There isn't any possibility the timing of the crank/cam are off. The marks are perfectly lined up (always have been) and I mean, the car was running. It was just making a frequent tapping noise. Maybe the balancer problem did cause this. The motor did feel like it's binding as it tried to turn over. I don't understand.

    Last edited by Bedwards; 06-23-2011 at 10:07 AM.
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  4. #4 Re: Won't start after cam install 
    Turbo is the way to go. BillBoost37's Avatar
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    Any others showing the cam and crank gears sitting well on the keys? You know how the balancer created another groove, on teh cam and crank it's possible for them to flatten out or do other things with the key falling out or what not. That's my next concern, but you went back in and took that off, didn't you?
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  5. #5 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Any others showing the cam and crank gears sitting well on the keys? You know how the balancer created another groove, on teh cam and crank it's possible for them to flatten out or do other things with the key falling out or what not. That's my next concern, but you went back in and took that off, didn't you?
    I took them off after the balancer problem, and the keyways were good. Lined them up and then put them back on correctly.
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  6. #6 Re: Won't start after cam install 
    Turbo is the way to go. BillBoost37's Avatar
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    And at that time there was no noise right? Noise started after that reassmbly?
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  7. #7 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    And at that time there was no noise right? Noise started after that reassmbly?
    I can't remember. It never started. But from what I remember, it did sound like something was binding when I turned the motor over by hand. I'm pretty sure that was before reassembly as well.
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  8. #8 Re: Won't start after cam install 
    Killa Bee Scottydoggs's Avatar
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    any way that because the lifters were not soaked over night or at all in this case, the valves were over tightened, and bent push rods was the result?

    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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  9. #9 Re: Won't start after cam install 
    GT Level Member torq455's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Explain how that's possible on our motors please. Because I'm not aware of it being possible.
    Yeah...don't know what the hell I was thinking. Now I feel like a dumb ass.
    2002 GTP: K&N, 3.2 pulley, flipped mounts. ZZP SS headers, 180 stat, NGK TR6's, MSD wires, Reptile ported TB, ported S/C, ported LIM, Intense Stage II heads with larger Manley severe duty SS valves, Yella Terra 1.9 full roller rockers, LS6 springs, Racetronix fuel pump re-wire, Oil pressure "kit", JMB FWI. Mustang dynoed at 240 WHP, 272 WTQ.
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  10. #10 Re: Won't start after cam install 
    Killa Bee Scottydoggs's Avatar
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    any chance those roller style lifters are taller than a stock lifter?

    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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  11. #11 Re: Won't start after cam install 
    GTP Level Member Bedwards's Avatar
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    I took all the spark plugs out and turned the motor by hand with the lifters installed. The piston/cam timing is correct on #1 cylinder. The lifters stay down on compression stroke, the intake lifter comes up on intake stroke, and the exhaust lifter comes up on exhaust stroke. I looked in the valleys in the heads, and the valve stems look fine (from what I can see).
    Last edited by Bedwards; 06-23-2011 at 08:28 PM.
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