On Sat, 1 Oct 1994 WILSONHB@ctrvax.Vanderbilt.Edu wrote:
> Wow. Thank you for the detailed response. The car begins doing this
> _at_ 70-80 mph; it acts as if it's runnin on three cylinders--there's
> clearly some kind of combustion going on, but it isn't enough to main-
> tain the speed, which drops to 40ish. If I take the car out of gear
> and rev the engine a few times, often it "recovers" and will accelerate
> normally--even past 80 if I have the nerve. Upon this recovery, black
> smoke exits from the tailpipe--one significant billow of it, then normal.
> The next time this happens, I'll try the choke trick and diagnose from
> there. In the meantime, next weekend I'll begin to systematically go
> through all the things you mentioned. If these symptoms clarify the
> problem at all for you, please let me know.
Yes, your new description does clarify things. I assumed (incorrectly)
that the problem occurred at slower speeds _after_ you had been tearing up
the highway. Since it happens _while_, not after, heat could still be a
factor but first I would look into other causes of fuel starvation
(partially plugged fuel lines, weak fuel pump, etc.). Lots of other SOLs
have given you good ideas to try already, so I won't rehash.
Let us all know how it turns out.
-----------------------------------------------------------------------
Chip Old 1948 M.G. TC TC6710 NEMGTR #2271
Cub Hill, Maryland 1962 Triumph TR4 CT3154LO (daily transportation)
feold@umd5.umd.edu
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