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cam belt problems
Topic Started: Jul 31 2016, 09:09 PM (466 Views)
mark hadley
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I'm doing the cambelt and having a few problems.

1) The cam wheel and the injector one are out by 1 tooth.
2) there are no markings on the crankshaft in the 9 'o' clock position,

so I don't know which wheel is wrong and I'm rather nervous.

the crankshaft shaft seal has a mark at 3 'o' clock
The pulley has four holes (the bottom one lines up with the mark on the seal.)

The pulley has a small notch at about 1 'o' clock that might line up with the cam belt

The pulley has a hole at about 5 'o' clock, opposite the slot on the cog. which does NOT line up with a slot in cambelt cover which is at 6 'o' clock.

Any ideas what I should line up?
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Bazil-S
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Hi,

The camshaft is aligned at 12 o' clock see the marks, the injection pump sprocket locks with a 5mm drill and the crankshaft hole must be at 6 o' clock.

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mark hadley
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Thanks, that was reassuring. I also found alignment marks on the flywheel. The clutch housing had a window at the bottom with a plastic plate. The clutch housing had an alignment mark and there was a notch in the flywheel.

I'm puzzled by the tensioner. How can it work if the pulley is bolted to the big stud on the crankcase? Am I missing something?

Also puzzled about how the cover fits over the tensionner pulley.
Thankd
Mark
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trance
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Mark,

Not sure if you still at this but the crankshaft pulley does not work with the tensioner. There is another pulley which levers through the tensioner.
I use an open end spanner to hold the tensioner off until the belt has been fitted.
Good luck
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mark hadley
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Understood. It is all done now ad the engine runs, not been out on the road yet though.

I needed a pair of spanners to hold the tensionner back enough.

Yes the tensionner acts on a specific pulley, but this pulley is then bolted in place to the crankshaft stud.
I presume the idea is that at a regular service the pulley nut is loosened to let the tensionner readjust, and then tightened again.

On mine the belt was very loose when I came to it, and only tightened once I loosened the pulley nut. Also, the stepped washers had been assembled the wrong way round which limited the travel.
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