Thanks... So you do not think it is bad compression? That is the only thing that worries me. As mentioned- it smooths out when I press the accelerator. When it idles- it rocks side to side and moves the whole car vigorously.
If I do buy it and it turns out to be bad compression- would it be worth $1700.? They are asking $2399, but what should I safely offer not knowing the problem? As mentioned- the body and interior are excellent. No rust or dents. A/C does not work. Also- when it does that side to side rocking- it has a "put put put" sound from the tailpipe- like a miss. I also forgot to mention that the diesel smell from the tailpipe is a strong smell- but that may be normal for all I know. Thanks again.
Quote:
Originally posted by psfred
Worn or bad rack dampner bolt will produce exactly the symptoms seen on the 617 engine -- shakes like crazy at idle, but runs prefectly at any higher speed.
What happens is that there is a harmonic vibration in the injection pump that exactly matches the harmonic of the spring on the fuel delivery control rack in the IP, with the result that at idle it ocsillates back and forth in harmony with the engine vibration. When the spring gets weak or the dampner bolt gets worn, it gets bad enough to cut the fuel off to some cylinders, causing the shake to get much worse.
Usually can be fixed by adjusting the dampner bolt in some, but eventually it can no longer be compensated for, and the pump will have to be disassembled and repaired. I'd not do that until something else needed fixed!
Peter
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