Hi all, Can I run this by the collective. I have tried out a cam
timing method I
read in an old TR Register mag, but would like comments.
1. Find true TDC of the crank using timing disc dial gauge and rotating both
directions.
2. Take the inlet timing data for your cam, in this case 15degrees BTDC and 55
ATDC, add these together along with the 180degrees of TDC to BDC then bisect
the angle. On the timing disc this works out at 110degrees ATDC. This is the
midway point of the inlet cam.
3. Find the maximum lift of the cam on inlet NO1 using your dial
gauge and again
rotating both ways to find the mean. Leave the cam in this position.
4. Rotate the crank clockwise to 110degrees ATDC.
5. Fit the cam wheel and chain without moving either crank or cam.
The trouble I found is after following this and then rotating crank with the
dial gauge on No1 inlet I thought I would see the cam start to lift at
15degrees BTDC, but it did not it was more like 55degrees BTDC. I did note that
the methods used in manuals are all based on No4 cylinder, could this be the
problem?. Would appreciate help on this one, I'd like to move on to the next
bit!!.
Regards John
--
John Gillis
1954 TR2 TS3618. October 1954 (ground up)
2001 Kawasaki W650
Trinity College
Dublin,
IRELAND.
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