In a message dated Fri, 28 Jun 2002 2:49:24 PM Eastern Standard Time,
geohahn@ultrasw.com writes:
>
>
> "McEwen, Art" wrote:
>
> > Silly question but: How am I supposed to set the timing on my 3 without any
> > gradient marks on the pulley?
>
> If you have a protractor handy (or a sixth grader who will lend you theirs)
>draw
> a circle on a sheet of paper as close as you can come to the diameter of the
> crank pulley (borrow their compass while you're at it). Then measure 4
>degrees
> on the circle. This should give you a close enough feel for it that you can
> eyeball the setting. As Randall noted, the best results come from driving and
> stopping along the way and tweaking the thumb wheel.
>
> Or... ISTR that each tenth inch on the pulley circumference is about 2
>degrees.
> Not precise but should get you in the ballpark.
This might help a bit:
"Timing Marks
"Top Dead Centre Mark, hole drilled in
fan pulley and pointer on timing cover.
15 degrees before or after top dead centre =
0.081" piston travel or 1.5" (measured round the
flywheel adjacent to the starter teeth)."
-- from the "Useful data [TR3]" section of the TSOA Handbook
<http://www.vtr.org/tsoa/handbook/tsoa9bg.htm>
--Andy Mace
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