Now, guys, I've always known this was a slow car. But for the last
month, my 81 240D with about 160,000 won't go faster than 74 mph. At
that speed, she seems to be pushing against a wall.
What should I check? Ive replaced the airfilter. Winterfuel has never
done this to me. Should I replace the fuel filter? It's less than 15,000
miles old. Also, I have a new clutch within the last 2 weeks. Would an
improperly installed clutch cause to slip at high RPMs? My mechanic says
injection pump but I suspect he just wants to throw parts at the problem.
You would notice clutch slippage during normal driving.
This is either a power problem or a drag problem.
Check that when the accelerator is floored (w/ engine off) the throttle
linkage is against the full throttle stop on the injection pump (look
between the IP and the block). They may have jacked up the engine during
the clutch work and so disturbed motor mounts and/or the throttle linkage.
If linkage is OK, adjust the valves for that's about all that's left
other than recognizing that the engine may be below full power due to
wear - less than optimal compression.
Check tire pressure and that there's not a dragging brake and the front
Thanks Randall and T.G., I'll check out the things you mentioned first.
Engine wear such as would cause this lack of power wouldn't happen over
the course of a month, would it?
T.G. Lambach wrote:
try going down hill.
don't expect much more than 80.
mine <auto> would hit 78 with the ac on
80 kinda with it off <250,000 miles>
a good radio was required!
the filters should do it
the case, minus a few cans!
I meant the OP of course... I trust you realised that.
In my 1980 200D I achieved a nominal 143 km/h, higher than that which my
work colleagues with the same model achieved. I put all down to very
careful running in.
For direct contact replace nospam with schmetterling
"pool man" < email@example.com> wrote in message
I have an '84 240D and it has a small prefilter in the fuel line towards the
rear of the main filter, that has the cleanable cartridge. The prefilter is
not really cleanable and should be replaced. It's quite small and low
You may also have algae in your tank. Do you use additives, like Red line?
I drove a 200D in Europe for about 12 years and never had a problem with
algae, until I bought a 240 in California and had to use the well watered
diesel they serve here. The gas stations here seem to think that a diesel
tank should contain an aquarium ;-) My tank was almost full of what looked
like seaweed in its worst state. I had to get it "boiled" out.
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