She ran, now she won't

Posted by Mbaggs on October 28, 2013 at 17:15:41 from (174.50.144.144):

This is a late 60's/early 70's 4 cyl diesel with a Simms pump, with this forums help, I was able to get it running a few days ago...now nothing...

Background-
After lubing up the pump, changing the oil in it, I had fuel squirting from all 4 injector lines...nice "squirt"...much better than the dribble I had before:)

So I ran an .045 piece of Mig wire through all the injector, all seems fine.

Ran a separate line off the lift pump into a fresh jug of fuel...tried to fire it...still no go...thinking maybe I just needed to purge the old fuel (+15 years old) out of the lines and filter, I poured a shot..about 1/4 of a cup, maybe 1/2 cup of fresh diesel into the intake, one quick shot of starting fluid and she fired off and ran for a solid 7-8 minutes...first 30-40 second were smoke filled, but cleared out nicely.

So, drained the fuel tank, pulled the filter, drained the housing, purged the lines, reverified I had fuel squirting to each injector, and tried to fire it off again...and nothing...

Gave it a shot of starting fluid (man I hate doing that) and it rattled over foew 2-3 seconds, but would never stay running...

So then did the 1/4 cup of fuel thing again...and nothing...tried again a bit later with a 1/4 cup of fuel down the intake and a shot of starting fluid...seemed a bit better, kept running for 4-6 seconds.

Now...here's the interesting thing...trying to think back as to what I may have done differently from when it first started and ran...what I was using was the oil can that I used to fill the injector pump back up after draining it...for sure there was oil left in there...maybe 1/4inch or so, before I poured the fuel in and shook it around..

My thinking is that maybe the diesel mixed with oil maybe sealed up (like a "wet compression test would) worn cylinders/rings?

Thought on that would be appreciated...

Next, which is a pertinent question, how are the injectors removed?...this engine has a FL casting towards the right front side...the injectors appear to sit into a recess in the head...above the injector I can make out "caution" above each injector-if I recall correctly...reason I'd like to pull the injectors is to run a compression test on each cylinder...unless there's some other way I;m not seeing.

Thanks!

Replies:

• Re: She ran, now she won't Mbaggs 15:11:18 10/29/13 (0)
• Re: She ran, now she won't sunbeam 15:03:40 10/29/13 (1)
  • Re: She ran, now she won't Mbaggs 15:09:14 10/29/13 (0)
• Re: She ran, now she won't RodInNS 05:48:27 10/29/13 (0)
• Re: She ran, now she won't Robert Major 23:10:47 10/28/13 (0)
• Re: She ran, now she won't Brian Allen 18:05:17 10/28/13 (1)
  • Re: She ran, now she won't Mbaggs 13:32:53 10/29/13 (0)

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