Allan, et al.
This may not apply.
When I picked up "Blue" in R.I. it was running on 4 out of 5 cyls.
(602.961 '87 190Dt). After putting in an huge battery and getting it running
drove it home on 4, about 120 miles. When I diagnosed the problem, it
turned out to be a loose delivery valve assy. on #1, tightening it up
made it run much better, replacing all the seals and copper discs
made it run almost smoothly. Subsequently I decided that the I.P. must
have suffered some damage by running on 4 for who knows how long before
I got it. It idles OK cold (up to 40f) and hot it runs with a weak #1
cyl at idle up to 900 rpm.
Above that it runs smoothly and economically.
One other thing to remember is that the earlier head gaskets were prone
to fail on #1. and leak at the rear by #5.
HTH.
Fred Moir
Lynn MA
Diesel preferred
On 1/16/2012 8:16 PM, Allan Streib wrote:
It's pretty much got to be either an injector or the pump right? Can
the pumps wear/fail in a way that affects only one cylinder?
Unless the cam had a lobe come off or something, but I've never heard of
that happening.
What else could cause a miss on a diesel?
Might just need a diesel-purge treatment and then an italian tune up
drive home.
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