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Rod knock?

Old 05-07-2017, 07:44 AM
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Bigragu. I hadn't really thought about it that way. I guess u could.
Old 05-07-2017, 08:13 AM
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A member from DTR posted this on here awhile back, found it in my searches, when I was getting ready to pull my pump. The FSM also has a pic somewhat like this. This view is the backside of the VE, and shows where each injector line MUST go.

When reconnecting my lines back onto the pumps threaded ports, I could easily see how someone could accidentally connect the wrong line onto the wrong port, but I was prepared cause I labeled each of my lines prior to disconnecting them from the pump.
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Old 05-07-2017, 01:50 PM
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Excessive load from over sized tires/wheels will put extra strain on power train components. Will make a small problem show it's ugly head much faster and cause lots of problems.

That being said, sounds like a bad injector, get that taken care of quick, a burnt piston isn't cheap...
Old 05-07-2017, 02:24 PM
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Originally Posted by bigragu
A member from DTR posted this on here awhile back, found it in my searches, when I was getting ready to pull my pump. The FSM also has a pic somewhat like this. This view is the backside of the VE, and shows where each injector line MUST go.

When reconnecting my lines back onto the pumps threaded ports, I could easily see how someone could accidentally connect the wrong line onto the wrong port, but I was prepared cause I labeled each of my lines prior to disconnecting them from the pump.
is this looking from the front or the back of the pump?
Old 05-07-2017, 02:26 PM
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Originally Posted by Dan s
I got it. Number one injector it leaking past the o ring. Gonna call city diesel Monday. Guess I'll just have all six gone through.
What you can see as an oring on top of the injection nozzle has nothing to do with your leak. That ring is actually a quad ring meaning it is square or has 4 corners to it, it is nothing more than a dust seal to keep debree from entering the space between the nut and nozzle body.

If you have fuel their it is coming from somewhere else. Possible the injection line itself and its seal with the nozzle or it is possible the nozzle has threaded apart but that's quite uncommon. The return line may also show up as a leak their but again not very commonly.
Old 05-07-2017, 02:49 PM
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It bubbles from around the injector.
Old 05-07-2017, 07:58 PM
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What is the pinion angle on this truck?
Old 05-07-2017, 08:03 PM
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Originally Posted by mknittle
is this looking from the front or the back of the pump?
Standing behind the tailgate, facing towards the front of the truck, so the view looking at the back side of the pump. Whoever drew this up, was correct, as I double checked it when I one by one removed my lines at the pump, I labeled my lines and the ports.
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Old 05-07-2017, 08:06 PM
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Very good point. Pinion angle change can send bad harmonics up the mighty Cummings. Causing helter skelter!


Originally Posted by ofelas
What is the pinion angle on this truck?
Old 05-07-2017, 08:06 PM
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For those who don't have a transparent tailgate/cab/firewall, the posted diagram will preserve its integrity if the back of the VE is viewed while looking at it standing by the drivers side front fender.

Originally Posted by bigragu
Standing behind the tailgate, facing towards the front of the truck, so the view looking at the back side of the pump. Whoever drew this up, was correct, as I double checked it when I one by one removed my lines at the pump, I labeled my lines and the ports.
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Old 05-07-2017, 08:08 PM
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Agreed.

Amazing how butchered suspension components have an effect that is overlooked by most.

By the way, the correct term is "Cummins".

Originally Posted by 93flatbed
Very good point. Pinion angle change can send bad harmonics up the mighty Cummings. Causing helter skelter!
Old 05-07-2017, 08:50 PM
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Ford says Cummings, they own the engine rights they named it with "gs" get your story straight.

Originally Posted by ofelas
Agreed.

Amazing how butchered suspension components have an effect that is overlooked by most.

By the way, the correct term is "Cummins".
Old 05-08-2017, 02:56 AM
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I had a similiar problem, got a new $800 custom driveshaft, with higher critical RPM, to correlate with higher pinion angle. which eliminated issue ...
Old 05-08-2017, 10:03 AM
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Got them out. On the way to city diesel in Knoxville now. The number one was wet all the way up. The rest were dry as a bone. They came out very easy. Someone must have been in them before I bought the truck. NOW....IF a man wanted a little bigger injectors what would he buy. Right now I'm planing on just getting stock ones.
Old 05-08-2017, 10:05 AM
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Originally Posted by ofelas
What is the pinion angle on this truck?
Truck is factory ride hieght

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