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I just had a 1988 420 SEL 4.2 Litre motor completely rebuilt at a =
reputable shop. Everything seems fine, leak down test, wet and dry =
compression test -all checks out o.k. When at idle, the motor visibly =
shakes and seems to be missing. The mechanic is even at odds here, and =
might send it outside to determine the problem. Of course everything was =
installed correctly, timing set, plugs gapped, etc. Could this be a =
vacuum leak, fuel/air mixture issue or some relay at fault here? Any =
suggestions greatly appreciated.
Tony.
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<DIV><FONT face=3DArial size=3D2>I just had a 1988 420 SEL 4.2 =
Litre motor=20
completely rebuilt at a reputable shop. Everything seems fine, leak down =
test,=20
wet and dry compression test -all checks out o.k. When at idle, the =
motor=20
visibly shakes and seems to be missing. The mechanic is even at odds =
here, and=20
might send it outside to determine the problem. Of course everything was =
installed correctly, timing set, plugs gapped, etc. Could this be a =
vacuum leak,=20
fuel/air mixture issue or some relay at fault here? Any suggestions =
greatly=20
appreciated.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> =
Tony.</FONT></DIV></BODY></HTML>
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