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Author Topic: cam chain adjustment  (Read 1011 times)

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Offline parm

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cam chain adjustment
« on: August 17, 2008, 10:49:48 PM »
hi i asked this question in my build thread but it didnt get answered so i thought id try here. i have a 75' cl360 and the cam chain is very noisy. i tried to adjust as the manual says but it doesnt seem to change anything. does someone know a good way of adjusting it? perhaps running? this is what it says in the manual.......

1) Adjustment must be made when valves are closed and tappets are free. this position happens at 90 deg ATDC on the compresssion stroke of the left cylinder

2) loosen tensioner lock nut and bolt, and it automatically position itself.

3) tighten lock nut and bolt. and thats it.

anywho help would be good thanks
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Offline Terry in Australia

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Re: cam chain adjustment
« Reply #1 on: August 18, 2008, 05:07:04 AM »
G'Day mate, I'm not familiar with the CL360, but most old bikes have a problem with frozen cam chain tensioners.

Can you remove the tensioner assembly and check it's operation? If not, when you loosened the tensioner bolt and locknut, did you hear a "thump" as the spring loaded tensioner rod flew forward to engage with the chain?

It could be that your cam chain is just stretched beyond serviceable limits, but I'd be checking the tensioner assembly, if that's possible. Cheers, Terry. ;D
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Offline parm

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Re: cam chain adjustment
« Reply #2 on: August 18, 2008, 08:25:42 PM »
its got a bolt and lock nut, what will happen if i completely remove the bolt and lock nut.
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Offline Joel

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Re: cam chain adjustment
« Reply #3 on: August 18, 2008, 08:41:56 PM »
From what I can tell on the parts diagram, it looks very similar to the SOHC four systems but slightly rearranged.  Taking the tensioner bolt (#15) and locknut (#19) out isn't a problem but it won't be any more helpful.



You may have the same problem I have on mine.  The spring inside has weakened over time.  There should be a blanking bolt (#14) on the front of the case below the tensioner bolt.  You can remove this bolt and apply tension with a screwdriver or other similar tool down the hole.  I did it with the engine on mine running.  Gently increase the force down the blanking bolt hole until you hear the cam chain noise either stop or get quieter.  While holding that force, tighten down the tensioner bolt.  I then shut my engine off and let it cool before replacing the blanking bolt because it's hard to get to without burning myself but yours may be easier to reach.

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Offline parm

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Re: cam chain adjustment
« Reply #4 on: August 19, 2008, 10:55:30 PM »
thanks im gonnna try that tommorow. does anyone know if its ok to do this adjustment on my bike while its running?
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