Quote:
Originally Posted by vwnate1
You already found and ignored the problem : the IP isn't reaching full throttle, this is a very serious issue and why I was able to buy my cherry '82 240D for $1,000 in the middle of the Diesel Mercedes craze some years back ~ it barley went 60 MPH on the flat freeway and couldn't go up any hills except in second gear (automatic) with the throttle pinned .
First, disconnect the _vertical_ throttle rod at the IP and figure out if the IP has some binding issue or not, then go through the various pivots and firewall bell cranks etc. and clean and lubricate each one, a little bit of slop anywhere in the throttle linkage results in lack of power and lower top speeds .
Yours sounds like totally screwed up linkages .
A 240D isn't fast but it shouldn't be sluggish either .
It should drive sprightly .
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Okay so heres the thing. I have had someone sit in the car and press the pedal to the floor and it is "floored" in the engine bay. So it's not like someone is flooring it but its only at half throttle or something.
Secondly I have a feeling some PO or mechanic could have messed with the full stop on the IP pump. I say this because when I disconnect ALL the linkage to it and simply move it by hand, it does not go all the way to the stop.
So what I'm saying is that while I realize the linkage being sloppy isn't helping anything, I do not believe it is hindering the car from reaching full throttle. Either something is messed up in the IP itself or someone simply turned the full throttle stop in too far ? I'll take a photo or video and post what I'm talking about for clarity.