Cambelt Skipped a Tooth? - MG-Rover.org Forums
 
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post #1 of 4 (permalink) Old 25-02-2017, 11:37 Thread Starter
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Cambelt Skipped a Tooth?

Daughter's diesel Streetwise broke its auxiliary belt some of which got wedged between the cam belt and pulley. It had almost stopped when it happened and I didn't restarting it. I'm now fitting a new cam belt but cant get it to TDC because it locks up before it get there so appears to have skipped a tooth. Is it worth taking the old cam belt off and juggling the crank and camshaft to get the marks to line up then fit the new one or will it have mashed everything and need a replacement head?
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post #2 of 4 (permalink) Old 25-02-2017, 11:49
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Hi and welcome to the forum.

Even at tickover valves can get bent, I would pop the mead off if you can't get things to line up.

James
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post #3 of 4 (permalink) Old 26-02-2017, 11:57 Thread Starter
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Tried fitting the cam belt this morning but can't get the timing marks to line up. With the flywheel pin in place and number 1 at TDC the cam locks up before the timing mark on the pulley lines up. With the crank turned back quarter turn the cam will rotate 360 degrees and with the cam repositioned the crank will turn 360 degrees. I don't think any valves are bent but can't be sure without taking the head off which I don't want to do as if it needs a recon head at 225, gasket at 50, cam belt at 35 and bottom pulley at 35 it's not worth repairing.
Watching a video on Youtube they fit the flywheel pin at the front of the engine whereas Haynes says at the back. Are there two holes in the flywheel and I've got it 180 degrees out? I tried finding a second hole in the flywheel and front of the engine but nothing there.
Am I missing something obvious?
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post #4 of 4 (permalink) Old 28-02-2017, 21:43
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Quote:
Originally Posted by Marvel View Post
Tried fitting the cam belt this morning but can't get the timing marks to line up. With the flywheel pin in place and number 1 at TDC the cam locks up before the timing mark on the pulley lines up. With the crank turned back quarter turn the cam will rotate 360 degrees and with the cam repositioned the crank will turn 360 degrees. I don't think any valves are bent but can't be sure without taking the head off which I don't want to do as if it needs a recon head at 225, gasket at 50, cam belt at 35 and bottom pulley at 35 it's not worth repairing.
Watching a video on Youtube they fit the flywheel pin at the front of the engine whereas Haynes says at the back. Are there two holes in the flywheel and I've got it 180 degrees out? I tried finding a second hole in the flywheel and front of the engine but nothing there.
Am I missing something obvious?

A good second hand head from a scrap car will be perfectly serviceable - they are capable of extremely high milages without issue. Cost will be about 50
Headgasket 25-45 quid
Cambelt you already have
Bottom pulley doesn't need changing

Flywheel pin hole is in the back on the L series near the crank sensor.

You can try resetting all the timing and fitting a new belt but chances are a head swap is needed as the lifters usually get destroyed (you can take the cover off to try and inspect if you really want to).
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