Thread: Need some help on rebuild

what did you torque them to?

I torqued them to the recommended torque specs when I had the engine on the stand. I'm using the felpro intake manifold gaskets also.

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Oh no, this sounds allll to familiar! When you torqued the Cam, did you re-use the same bolt? If so, did you clean/thread lock it good?

I hate to say, I had this EXACT same sound then no start, came to find out the cam bolt backed it self out and now I'm on motor #2

Take off the front cover and inspect your cam bolt and keyway, if you see any damage there, I feel your pain man lol.

No I used a brand new cam bolt from zzp.

I torqued the cam bolt on tight in an engine stand so there's no way it could have backed out and un screwed itself.

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Tight? Spec is really fuggin tight.

^^^^ So very correct.
The bolt I think is 75lbs plus 90*. You know why it is plus 90* because most engine builders don't have torque wrenches that go to that high.

Originally Posted by GOTIT4CHEAP16

No I used a brand new cam bolt from zzp.

I torqued the cam bolt on tight in an engine stand so there's no way it could have backed out and unscrewed itself.

This happened to one of our bonneville guys 95Nasta.(crazy engine build too not just a rebuild). I would pull the timing cover.

Mines goes up to 90

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Originally Posted by BillBoost37

Tight? Spec is really fuggin tight.

lol, exactly.

Originally Posted by GOTIT4CHEAP16

Mines goes up to 90

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Yeah not even close to enough for the cam bolt

I'll be that guy. You are going to rip down the engine to find out whats wrong.

Originally Posted by Nighthwk12

Yeah not even close to enough for the cam bolt

I'll be that guy. You are going to rip down the engine to find out whats wrong.

I tried to say this nicely.

Originally Posted by matt5112

how would a backed out cam bolt force all of the lifters open?

Still trying to figure that out myself, my cam bolt loosened and all my intake valves smashed the pistons.

Because it must have got out of time....it won't hold them all open at the same time though.

So I just self F it and went and bought a head gasket from auto zone and took the front head off to inspect. Check the entire head and everything seemed fine and the pistons also. I put the head back on and torques and soaked the lifters and added oil in the valleys this time.

When I went to tighten down the rockers...it seemed as though this time the springs actually compressed lower this time than before and not all are depressed at the same time








I need new lin gaskets and ive been busy with work so ill finish tommorow or Saturday.

Also the rockers before had play which I think was causing the tapping but this time NONE has play.

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Update us with a new vid then.

Working on it. I have to finish putting everything together

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Can't reuse your lim gasket?

Yea I'm reusing them but need new side tabs cuz the old ones got destroyed when I pulled them off.

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Smh went and for some new lin gaskets and finished putting everything together and the car started with the same valve chatter so I turned it off and tried to start the car again but wouldn't start again Smh

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