Camshaft castellated nut query

malcolmgb · Post by **malcolmgb** » Tue Dec 17, 2013 5:51 pm

In am stripping the cylinder head on my CL72 which has stood for some years and has some corrosion inside, I am now trying to remove the camshaft, is there any way of knowing if it is left-hand or right-hand thread (CW/CCW), I am using a hammer and drift so would prefer to be going in the correct direction.

This is a picture of it, sorry it is blurred but I think you will get an idea of the type.
The engine number is CL72E 1101164 if that helps.

Tim Miller · Post by **Tim Miller** » Tue Dec 17, 2013 6:10 pm

It's left hand thread.

Tim

malcolmgb wrote:In am stripping the cylinder head on my CL72 which has stood for some years and has some corrosion inside, I am now trying to remove the camshaft, is there any way of knowing if it is left-hand or right-hand thread (CW/CCW), I am using a hammer and drift so would prefer to be going in the correct direction.

This is a picture of it, sorry it is blurred but I think you will get an idea of the type.
The engine number is CL72E 1101164 if that helps.

rrietman · Post by **rrietman** » Tue Dec 17, 2013 8:27 pm

are you sure? not all are left handed.
Randy

Tim Miller · Post by **Tim Miller** » Tue Dec 17, 2013 9:45 pm

Hi Randy,

I'm pretty darn sure. I have never seen this later style advancer have RH thread. Have you? The only RH units I have seen are the very heavy early 1961/62 units. That's why I say it's LH.

Tim

rrietman · Post by **rrietman** » Tue Dec 17, 2013 10:13 pm

Tim; I think you are probably correct here. I have seen the odd dream with late style sprocket and right hand thread. makes me suspect all of them if they don't come off easily.
Randy

jensey · Post by **jensey** » Wed Dec 18, 2013 6:27 am

Hi,

Tim, I think you're right regarding the old dream style heavy cam sprockets. And I have seen this type used on CB 72 61/62 engines too, including the "wrong" thread.

Jensen

btw, these heavy sprockets are just nice for smooth riding, but I wonder if it's good for the life expectancy of the cam chain.

LOUD MOUSE · Post by **LOUD MOUSE** » Wed Dec 18, 2013 8:59 am

I have 3 of the late style right hand thread.
I gave the engine numbers they came from to Bill Silver. ........lm

jensey wrote:Hi,

Tim, I think you're right regarding the old dream style heavy cam sprockets. And I have seen this type used on CB 72 61/62 engines too, including the "wrong" thread.

Jensen

btw, these heavy sprockets are just nice for smooth riding, but I wonder if it's good for the life expectancy of the cam chain.

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Camshaft castellated nut query

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