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Old 12-01-2015, 03:44 PM   #43
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Does the fuel smell fresh? As long as there isn't a rats nest somewhere in the air intake, the problem has to be the fuel itself, the tank, the filters, pump or injectors. Start simple and cheap before getting into expensive parts.

In my experience with 4, 6, 8, and 12 cylinder Detroit's, they were nearly bullet proof.
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Old 12-01-2015, 04:41 PM   #44
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Originally Posted by BRex45 View Post
Narampa did you have the "Silver 92?"

Worked on my own 8v71 in the fall of 1976, outside, 8 cylinder kits and rebuilt heads, in the snow. After 400,000 highway miles I got to know it pretty well, then apprenticed in a Kenworth / GMC dealership.

My first assignment in the shop? Pulling the trans on a Western Star with a 12v71 that had all of the flywheel bolts break or come out, raised hell with the flywheel housing.

Hopefully the OP stumbles onto the solution. Would like to know what it is.
The problem would have been found, usually, at our shop within an hour or less.

Bruce
It's a long time back but wasn't the silver 92 the last of the 92 series.
Too bad your not close to him it is such a simple engine to trouble shoot.
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Old 12-01-2015, 04:42 PM   #45
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Originally Posted by timetogo View Post
Does the fuel smell fresh? As long as there isn't a rats nest somewhere in the air intake, the problem has to be the fuel itself, the tank, the filters, pump or injectors. Start simple and cheap before getting into expensive parts.

In my experience with 4, 6, 8, and 12 cylinder Detroit's, they were nearly bullet proof.
I agree but would like to add 16v92 just more of it.

Diesel fuel does not go bad like gasoline.
Now I have opened a can of worms!
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Old 12-01-2015, 04:47 PM   #46
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Please give us that mechanics information as in my 60 years I have never heard of bypassing a water separator as a solution to a no fuel problem, sounds like a problem with the restrictor in the return line, just my opinion but after owning many detroits ,cats and cummins trucks and doing my own work on them, i'll say that was wasted money! removing two lines and butting them together is a ripoff! Bobby
There is no restrictor or orifice in the fuel line it is in the head where the return line leaves the head.
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Old 12-01-2015, 05:14 PM   #47
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Is the fuel line all steel or is it rubber?

Russell
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Old 12-01-2015, 05:18 PM   #48
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Is the fuel line all steel or is it rubber?

Russell
that line maybe collapsing- if rubber
all the 6v92 and 8v92s in Bluebird Wanderlodges use the straight 40 weight oli.
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Old 12-01-2015, 06:09 PM   #49
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The fuel may not go bad, but filters can clog up with algae and water fairly quickly and engines don't run well on either.
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Old 12-02-2015, 05:05 AM   #50
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I had a rubber fuel line come apart on the inside before. It actually created a flap on the inside of the line an caused a total blockage. When motor was shut down some fuel would get by the blockage.

Russell
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Old 12-02-2015, 09:18 AM   #51
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Does the fuel smell fresh? As long as there isn't a rats nest somewhere in the air intake, the problem has to be the fuel itself, the tank, the filters, pump or injectors. Start simple and cheap before getting into expensive parts.

In my experience with 4, 6, 8, and 12 cylinder Detroit's, they were nearly bullet proof.
I have a diesel mechanic friend that lives in another state that assures me the engines are bullet proof and with only 100,000 miles it has to be something simple.
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Old 12-02-2015, 09:20 AM   #52
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Is the fuel line all steel or is it rubber?

Russell
I will have to check on that but i believe at the water separator its at least steel shielded rubber.
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Old 12-02-2015, 09:21 AM   #53
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I had a rubber fuel line come apart on the inside before. It actually created a flap on the inside of the line an caused a total blockage. When motor was shut down some fuel would get by the blockage.

Russell
I think it may be in my best interest to trace out the fuel line and replace from engine to tank, at least the rubber portions...steel should be ok if it has it.
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Old 12-02-2015, 09:24 AM   #54
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Is your fuel tank full?
Do you fill the filters with diesel before you start?
Reconnect the Racor filter- the fuel/water separator and fill that with diesel. I had a 6v92 mechanical for 10+ years.
These engines are 2 stroke and must use straight 40 weight oil- no blends.
The tank is not full nor can I afford to fill it at this time. It has between 15 and 20 gallons, just enough to make sure I got it to my parents house.
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Old 12-03-2015, 10:15 AM   #55
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Many use DELO 100 Diesel Engine Oil - SAE 40.
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