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Old 07-16-2009, 09:47 PM   #15
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Sounds like my generator problem of two weeks ago. Ran fine at last use. No tinkering in between. Tried to start it on a hot day. It would not continue to run even though it fired. Fuel at the injectors. Oil level fine. Coolant level fine. Fuel level adequate. Fuel filter replaced three weeks prior.

I walked away and 5 hours later tried to start it on a whim. It strangely continued running on the third attempt. It continues to start and run but takes several attempts each time.

I found later that my new fuel filter was wet on the outside with diesel. Also, the glow plugs seem to be defective.

I have yet to correct the known problems, but the moral is check and recheck your modifications.

1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
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Old 07-17-2009, 08:38 AM   #16
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If you got it to start but it died...and you tried this repeatedly, my vote is that your fuel system is sucking some air and locking/blocking the fuel. Any air in a diesels fuel system will wreak havoc in short order.

You said you had lines made to replace older (cracked/leaking?) lines. Could those be leaking around the fittings? could you have overtightened a banjo bolt and cracked the fitting/mounting boss?

If you can crack the pump main bleed fitting and see constant fuel flow, tighten and move on to the next in fitting in line. Basically start from the tank and work to the pump, then to the engine.

When I changed out my fuel filters, I pre-filled them to overflowing and then started the engine fine. When I needed some fire starting fluid at a remote campsite one time, I drained about a cup out of the primary filter thinking it was similar to getting the water out. Ha! The doggone thing air locked the next morning and I had to go and use the manual prime on the lift pump, then go through about 5 minutes of sporadic cranking to get the air out. What a PITA (can you say "wont do THAT again")!

1998 Gulfstream 36' Sun Voyager Bus Platinum
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Old 07-17-2009, 09:44 AM   #17
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On the 3208 I had in my Bluebird, there is a primer handle for times like these. Did the fuel filters that you put on new -- were they full of fuel when you screwed them on? And was your racor full of fuel when you changed that out? I suspect air in your new fuel lines. Crack an injector and use the priming handle and see if you get fuel to come out.

Ernie Ekberg, Prevost Liberty XL Classic
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