Shim sizes

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Jamoi
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Location: South East England

Re: Shim sizes

Post by Jamoi »

Dark, will you still be coming over on the Fri before workshop day? Just curious as you have sorted clearances now?
Jamie :wave:
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darkember
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Location: South Wales Abergavenny

Re: Shim sizes

Post by darkember »

Interesting way to do the shims. Bike shop basically got the rear to TDC then strapped all the cam-sprockets and chain as well as the crank & without loosening the tensioner removed the cam off the sprocket did the shims then refitted & repeated the procedure with the front at TDC. Novel method, all seems to be fine with the timing thus far.
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VTRDark
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Re: Shim sizes

Post by VTRDark »

That's one way to do it I suppose 8O They must have had things strapped down pretty tight. How did they strap a crank :confused or did they strap the flywheel or even put a piston stop on the piston crown to stop the crank turning.

(:-})
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tony.mon
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Re: Shim sizes

Post by tony.mon »

You wouldn't need to strap the crank, just cable-tie the cam chain to the sprockets.
The cam ramp hasn't enough force to rotate the crank- leave the plugs in, though.
It's not falling off, it's an upgrade opportunity.
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darkember
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Location: South Wales Abergavenny

Re: Shim sizes

Post by darkember »

tony.mon wrote:You wouldn't need to strap the crank, just cable-tie the cam chain to the sprockets.
The cam ramp hasn't enough force to rotate the crank- leave the plugs in, though.
They had no plugs hence they tied the crank. I seem to trust the guys as they are engineers rather than fitters. Time will tell when I first fire it up. But good to know its another option that can be used from Allah:)
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VTRDark
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Re: Shim sizes

Post by VTRDark »

But good to know its another option that can be used from Allah:)
Have you gone all Muslim on us. I guess fasting is what Blue storms require. :lol: :lol:

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AMCQ46
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Re: Shim sizes

Post by AMCQ46 »

Like lloydie said, you will need to remember this, and tell the next owner, to prevent massive confusion the next time the clearances need done. As the sizes marked on the shims won't be correct, so the size you calculate for the replacement will be wrong and much head scratching will result :lol:

But if they were a good machine shop they would have anticipated this and ground the markings off so there is no option but to get the micrometer out and measure the shim :thumbup:
AMcQ
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