Hi Paul,
I am pretty sure it is not at "TRUE" 40 BTDC. That's just what I have to
dial the gun to in order to get the line to line up with the pointer. I'm
not too sure how the gun, the dial, and the timing all interact. The fact
that it doesn't run at all at 13 or 8 or 23 BTDC I think proves that. I
didn't just crank it up to 40 just because I felt like it. 40 and
thereabouts is the only place the engine will run smoothly or at all.
I tend to agree with Frank that it is probably the dizzy drive that is out
by one tooth, that would explain the odd orientation of the dizzy.
I'm going to work on it some more today (I took this week off from work to
do this, it's cheaper than paying a mechanic ;-) I'll let everyone know
what I find out.
Thanks,
Robert
At 12:32 AM -0500 2/19/99, Paul A Asgeirsson wrote:
>Whoa! Whoa! Whoa up there friend!
>
>Assuming that the vibration damper ring isn't slipping and that you have
>the right vibration damper mounted and the pointer is the right one for
>the damper, then idle at 600 RPM with the vacuum disconnected should be
>about 8 degrees BTDC. With the dizzy advance, vacuum advance combined,
>then at high RPM (3000-3500) the TOTAL advance should not be greater than
>about 30 degrees. Timing advance+dizzy advance+vacuun
>advance=approximately 30 degrees.
>
>If you have an idle advance of a true 30 degrees, you will have kick back
>on the starter and will likely damage the engine when running at that
>much beginning idle advance.
>
>Paul
>PAsgeirsson@juno.com
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