Mk1 V/V guide clearances

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camstevens
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Mk1 V/V guide clearances

Post by camstevens »

Hi All
I understand the original spec MK1 clearances are 0.002" for inlet and 0.004" outlet. I need to finish hone new Colsibro guides, but just thought it prudent to ask whether 0.004 is necessary (no point in removing material is not necessary).

I was going to use 250 grit for final finish, and a coarser grit for removal.

Cheers
C
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Roger Gwynn
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Re: Mk1 V/V guide clearances

Post by Roger Gwynn »

Guides should be honed to the nominal size as the clearance is on the valve.
Roger Gwynn, caretaker of the club's works drawings and machine register, membership secretary 2015-26. Director of AOMCC, Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
Chris Sealy
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Re: Mk1 V/V guide clearances

Post by Chris Sealy »

Hi Cam. This is from C. W. Wallers book.You can work out the max and min from the figures.
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Re: Mk1 V/V guide clearances

Post by nevhunter »

It Tells you, Just above A bit less on the Inlets will reduce oil consumption and they rarely grab when Oil s around. Not so with the exhausts. Try to have the finish good or rapid wear Happens.. Nev
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