Some Vincent projects for John

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Re: Some Vincent projects for John

Postby John H » Sun May 05, 2019 11:15 am

Shimming the timing chest is time consuming but necessary to control wear and reduce noise.
The basic shim set requires 16 shims. There are 4 different sizes from 5/16 x 1/2" to 5/8 x 3/4".
Shims range from .003 to .030 are added to give just the right clearance.
With the steady plate installed, a feeler gauge is used to measure movement of all the moving parts.
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Re: Some Vincent projects for John

Postby ClineDesign » Sun May 05, 2019 10:44 pm

Isn't it about time for a BBQ at John's so we can see the progress in person?
Always wear protective gear. Usually SPF 30 will do.
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Re: Some Vincent projects for John

Postby John H » Tue May 07, 2019 9:05 pm

Uh, I think that would call for a clean up day.
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Re: Some Vincent projects for John

Postby John H » Wed May 15, 2019 10:02 pm

The cylinders are finished. The liners were magnafluxed at the top edge as this is where a crack would possibly develop.
This done, a .125" lip that stands proud of the muff (cylinder) on top is the sealing lip for the head as there in no head gasket. The second part is making sure there is a .003" gap between the larger surface on the head and muff.
This gap is critical. When the head is torqued correctly this gap will be zero and the head will not warp. I know, that's clear as mud.
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Re: Some Vincent projects for John

Postby John H » Sat Jun 08, 2019 11:11 pm

Heads are finished and installed.
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Installing all the small parts is a bit tricky.
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The last part of the top end is timing the cams and setting valve clearance. It's difficult finding
exact numbers when trying to go by the 'cam card' method. If I can get 3º variance or less that's good.
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Re: Some Vincent projects for John

Postby Dragonknee » Wed Jun 12, 2019 8:17 am

Damn John that looks like heart surgery.... Nice to see it going together
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