Bob D,
My MGB needs full choke to start in this frosty weather, but I push the
choke in completely as soon as I get out of the driveway. The engine
will stumble a little as I drive 1/4 mile to a stopsign but it keeps
running. At the stopsign I pull out 1/4 choke to be sure that it won't
stall in the intersection. Once the car is moving, I push the choke in
again and am done with it for the duration of this drive. Spark plugs
look good as does exhaust pipe, so I think the carb mixture is OK. Its
adjustment is whatever it was set to last time I did a tuneup, probably
4000 miles or so ago.
My experience with the TD MkII is similar. It needs the choke to start,
winter or summer, but once out of the driveway the choke is used only at
the first intersection.
Stroke on the engines is about the same, 90 mm, so I don't believe that
that is the explanation. I suspect that this difference in choke
requirement is the result of slight differences in carb and ignition
settings.
Bob H.
On Sun, 18 Feb 2001 23:24:10 EST BobMGT@aol.com writes:
> In a message dated 2/18/01 10:50:52 PM !!!First Boot!!!,
> mgbob@juno.com
> writes:
>
>
> > I drove my '72 GT today for a club event, about 40 miles in
> coastal CT,
> > air temps 25-30 degrees. With radiator 1/3 covered with
> cardboard, and
> > the oil cooler completely taped over with duct tape, the temp
> needle
> > never got above 1/3 of the way from C to N, and that's with a 195
> degree
> > thermostat.
> >
> I drove my B in similar temps today on a trip and had a
> similar
> experience with the temp gauge. I didn't have the radiator or the
> oil cooler
> blocked in any way. I had to leave the choke partially open the
> whole way. Do
> the carbs need to be re-adjusted for winter running? I notice my B
> seems much
> more sensitive to the choke setting than my TD. I believe I could
> run the TD
> year round without even using the choke. (Maybe long stroke engines
> like the
> XPAG aren't too fussy about the air/fuel mixture?)
>
> Bob Donahue (Still stuck in the '50s)
> EMAIL - BOBMGT@AOL.COM
> 52 MGTD - under DIY restoration NEMGTR #11470
> 71 MGB - NAMGBR #7-3336
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