Sounds to me like your Idle speed is too slow. WHen ever you want to
crank the idle speed adjustment up (CCW), your foot should be off the
pedal so the little knob does not have to fight the return springs.
THe starting habit should be: Sit in the seat, close the door, Floor
the throttle (halfway will do), wind up the idle adjustment, turn the
key to glow, fasten your seat belt, hit the starter. After it
starts, let it run with a foot assisted high idle (1000 to 1200 PRM)
for 20-30 seconds, then take your foot off and let it run on the idle
stop.
At this point, it may be ready to back off the idle speed adjustment.
THen shift into gear and go.
I believe you should adjust the idle speed higher. If your car has a
tach, it should idle around 650 rpm or so. (none of my 4 cyls had a
tach, so I always do it by ear.) I am not sure what the book says
for idle speed, but it will be in the range of 650. There are two
ways to adjust the idle speed. One is on the main linkage, there is
a stop set screw. The other is with the idle speed adjustment.
THe linkage stop should be set for about 650 with the engine warm in
warm weather. THen, fix your idle adjustment and set it so that the
end at the throttle linkage is snug, but does not pull the throttle
off the idle stop (under the same warm engine conditions) THat is
with the adjuster out all the way (CW)
THen get in the car, rev the engine up to 1500-2000 rpm and crank the
idle stop all the way. take your foot off the throttle. The engine
should run at 1200 to 1500 RPM (very fast idle). Dial the idle speed
adjuster back ccw until you get a good idle speed.
In the mean time, until you get your adjuster fixed, set the idle
speed stop so the engine runs a little faster, and consider letting
the engine warm up a minute or so before you take off. that will
help a lot with your condition.
Happy Dieselling!
I have recently purchased a 240D (W123 1983) and have noticed that the car
is very hard to get moving after sitting a long time, like first thing in
the morning. I can get her started, and she'll idle, but as soon as I apply
load (shift the transmission into gear) she pretty much dies. Now, the key
for the manual choke broke off, and I've got the thing twisted as far as I
believe I can counter clockwise. It's hard to move it to the left though, so
not sure, turn clockwise far easier.
However, after I get her convinced to move anymore than about 100 feet.
She's fine. Stop at signs and lights under load and start back up again
without any real problem. She idles real rough while at stop, in gear
though. But she's my first diesel so I might just not be used to the engine
characteristics.
Any ideas?
EdB
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