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Intake Cam Grinding on Bracket!

 
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Old 23 May 2019, 04:23 pm
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Default Intake Cam Grinding on Bracket!

After finally getting timing belt correct, I realize now that the intake cam sprocket is touching and grinding on the cast iron bracket.

I didn't put the outside timing cover back on, and didn't realize this was occurring until driving for a while.

The cam has ground a groove into the iron bracket!

I can't really come up with how this is occurring except somehow the engine is slightly offset to the passenger side???

Any ideas most appreciated.
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Old 23 May 2019, 04:37 pm
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Default Re: Intake Cam Grinding on Bracket!

Burr or debris between cam and cam gear, cam gear installed backwards, or cam gear I'm not totally seated on cam would be my guesses
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Old 23 May 2019, 04:38 pm
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Default Re: Intake Cam Grinding on Bracket!

Or am I misunderstanding? Can you post a picture?
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Old 24 May 2019, 01:18 pm
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Default Re: Intake Cam Grinding on Bracket!

I never had to remove the cam, so it hasn't changed position...

I did remove the cast iron bracket and reinstall, and had to jack the engine up and down quite a bit to get things off and back on...

I think you are understanding exactly what's going on. Thanks.
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Old 25 May 2019, 01:49 pm
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Default Re: Intake Cam Grinding on Bracket!

I don't own a smart phone for pics (believe it or not).

It's the cam rubbing the iron bracket that goes from motor mount to engine.
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Old 25 May 2019, 08:17 pm
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Default Re: Intake Cam Grinding on Bracket!

Quote:
Originally Posted by mtyson View Post
I don't own a smart phone for pics (believe it or not).

It's the cam rubbing the iron bracket that goes from motor mount to engine.
Are you sure the cast iron bracket was not bent removing it or not installed properly?
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Old 26 May 2019, 03:49 pm
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Default Re: Intake Cam Grinding on Bracket!

Ah, no I didn't think about the bracket being bent... That could be the case...

I think I might grind the bracket down a bit for more clearance
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Old 26 May 2019, 05:44 pm
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Default Re: Intake Cam Grinding on Bracket!

cast iron 9 times out of ten will just crack. id bet you either cracked it, broke the main bolt through the bracket, mounts are busted or you omitted a mount...

another words short cuts are fine in Siberia. but they don't work! the short way comes long and the cheap becomes expensive...running the engine with out the belt covers wasn't gonna last long either.
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Old 26 May 2019, 06:04 pm
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Default Re: Intake Cam Grinding on Bracket!

Are you talking about this iron bracket?



If you look at this picture with the timing belt covers, the bracket shouldn't be anywhere near the sprockets.





Very likely you didn't put the cast iron bracket back in properly.
Did you use a partially screwed in bolt to line up the tensioner bracket while installing the other tensioner bracket bolt? If you didn't, then you could have bolted the iron bracket in slightly tilted (ask how I found that out?). Hopefully you didn't use force to screw the bolts in or you could have messed up the threads into the engine. The bolts should start with finger tightening once they are lined up properly.
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Old 29 May 2019, 02:29 pm
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Default Re: Intake Cam Grinding on Bracket!

That is the bracket!

The tensioner, belt, crank and cams all look fine (and I didn't remove the cams).

The bracket appears to be bolted correctly to the engine, and the pass. side engine mount seems to be bolted correctly to the bracket and the frame.

I don't see any cracking on the bracket.

I know there should be plenty of clearance to put the timing cover between the belt and bracket.

Did I mess up the driver-side engine mount by jacking the engine around, allowing the engine to tilt to the pass. side??
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