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Cool thread. I do not need it just now but I will go through and keep this because I do have some projects. I have a m221 I want to bring back to life. Thanks for posting this thread.
I found a 4 volume set of hard copy ( they are copies of the original) manuals on ebay that I bought recently not sure if still there. They come in 3 ring binders seem to be a good option
I am trying to find a new under hood heater fresh air tube. Any help would be appreciated.
As you can see my tube is just went south.
I have tried the search with no luck. I suppose that I am not using the proper words
If your fuel level was low while you were doing that it sure could uncovered the stand pipe to introduce air into the system. If that possibly the case.
The answer is keep more fuel in the tanks. Don't stop doing donuts sometimes. Lol.
I am glad you were able to get your engine running with no other issues so far. If you truck does this again you are probably bringing in air on the suction line.
This is just my opinion but I would not tare anything down until you can verify that you have the system primed up( getting returns into the fuel tank while priming the system) and the engine still doesn't start. this doesn't cost much in the scheme of things. If you have a psi gauge (80 or...
You are correct you have a fuel problem. You should have some fuel run out after cranking for a bit if it were primed properly. You may also have other issues like a stuck injector or something of that sort but with the smoke getting less and less confirms not the proper fuel to the engine.
How they use it on the cummins is different than how I would use it on yours because they use the suction to draw the fuel up the suction line of the pump. On yours you need to force the air out of the heads and injectors
To be honest I don't know if it would work or not.
It might work I just am not sure. Because you do need to build a little psi to prime Because of the clearance in the fuel lift pump.
Years ago I did use a tall thumb pump oil can with a hose on it to prime an engine.
On my m931 there is a hand...
That way you are pushing fuel through the filter, pump, heads and injectors back to tank pushing the air out of the system into the return line and in the fuel tank
I have never use a vacuum to prime. If you were going to do that you would need to pull from the return line for it to be really effective. I normally use a hand pump like I put in a few posts up.
Yes unless you break the vacuum at the line at the fuel tank it could sure pull all your fuel...