I went out today (in the pouring rain), moved the TR4 under cover, and
began trouble-shooting.
Trouble: Backfiring while shifting (thru tailpipe), occasional miss,
misfire, backfire thru carbs when downshifting (heel-toe) up to a
stoplight (or just slowing down). The latter sares me the most. Also, on
barely open throttle, I get a bit of a sputter. If I open it a bit more,
it's OK then starts to sputter. Really goosing the gas doesn't produce
much trouble (the occasional pop, but nothing nasty) ...however, I have a
fear of speeding tickets and driving a-la leadfoot is not the best way to
avoid 'em.
Shooting:
Valve clearances were all OK, I set them all to 0.010 again anyway.
Points gap was too tight, re-set to 0.015. Plugs look OK, no carbon
fouling, but a bit too dark brown for my tastes.
Tomorrow I will try to fiddle with the carbs a bit. I haven't tuned them
since I foudn hy (hopefully) only vacuum leak. I'll also check out the
fittings for the vacuum advance @ the carb and advance unit.
I have to drive the car on Thursday to school (80mil round trip). I'd
like to figure this out by then, but who knows.
-Malcolm
* There is a FAQ for this list! Its temporary home is:
http://www3.bc.sympatico.ca/walker/triumph/trfaq.htm
|