Not Healey-related--although I've heard Healey engines described as
tractor-like--question for the List wisdom. I have an old Ford tractor,
model 851 manufactured in the early '50s, with a 4-cyl engine. Â
Compression is good--145+/- on all four--and I've replaced points,
condensor, distributor cap and plug wires and rebuilt the butt-simple
Marvel Schebler carburettor (plugs were OK). After the work, the
tractor started quickly--after I fixed the 180deg-out distributor
cap--and ran good for 15-20 minutes with a load from a scraper. Then,
it starts backfiring, tries to stall and struggle for a few secondsÂ
then, if it doesn't die it seems to recover for another 15minutes and
then the show starts again. The coil had some corrosion in it so I
replaced it, with no change. This tractor ran consistently but very
poorly under load before my work.
Only thing I can think of is the carb float sticking but it was an easy
rebuild and I recently rebuilt another with no issues. Any ideas?
Bob
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