[TR] calculation valve timing

John Gillis JGILLIS at tcd.ie
Wed Jul 6 02:27:20 MDT 2011


Sorry to drag this thread out but need to be REALLY sure I am on the right
track

I found the inlet figures for the standard cam which are as follows; starts
open at 15 BTDC, closes at 55 ABDC. Using a 180 degree timing disc my
calculation is 15+180+55 = 250 this would be 110 degrees ATDC as the midpoint
(max lift)
If I set my crank to the above figure, after first setting up the disc at true
TDC of course, then find the max lift point of No1 inlet with my guage and at
that point fit the cam wheel and chain.
This is the approach written on the face of my Kent Cams timing disc
Sound OK?

Regards
John 1954 TR2


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