Bryce,
To determine if the timing mark is off, remove the plugs, turn the
engine over (I put it 4th gear and push) until the # 1 piston is coming
up on the compression stroke and then place a long thin screwdriver or
similar tool into the # 1 spark plug hole and carefully turn the engine
to determine when the piston has reached top dead center and check your
timing mark. It should be at "0" or within a degree or so. Also check
your distributor without moving the engine and make sure the rotor is
pointing toward the # 1 lead position. If not, something is amiss.
Hope this helps,
Jim Davis
Fortson, GA
Bryce Milton wrote:
>
> Thanks for all of the prompt replies to my firing order inquiry! The
> saga continues: I suspect my timing marks are off as the car runs awful at
> 4 degrees after TDC (doesn't run smooth without backfiring until the marks
> say 6 degrees before TDC)... Measurements taken with vacuum advance hose
> removed. I just came in to grab a coat hanger to try to verify my marks...
> If the marks are right, what could I be doing wrong?
>
> -Bryce
> '76 US-Spec Triumph TR6
> http://www.milton.com/bryce_sara/triumph
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