Hatchy
Member
So little while ago my injector pump decided no more in moree nsw about 4500ks from home. Now this pump was only 12 months and 1 day old. A few phone calls I got a replacement from United fuel injection but still cost me $900 for tow (moree to coffs harbor) another $250 at least in gaskets and tools to do the job. So few days later the big rig was running again and didn't miss a beat for the next 7-8000ks home. This got me researching and I found that this pump is very common on Cummins 6cylinder. 6 you say that can't be! Well it is, these are a module style pump. Just change the back end and program and you have it. Now why are ours so common to fail? From what I can see every other model that uses this pump has an electronic feed pumps supplying around 12-16 psi that held in doing 2 things.
1- less stress in the pump trying to pull the fuel from the tank through the filter by supplying it under pressure.
2- cools the pump these are a flooded pump and use the diesel to cool it by supplying more fuel than is required it bypasses the pressure relief valve and cools the pump.
Now this is just theory. I haven't had a chance to try it on mine yet as I'm looking for a suitable pump. I'll be moving my main filter to under the Ute near the tank with the pump and running a 2 micron filter up front.
Thought I'd put this out there and see what you guys think. Let me know!
1- less stress in the pump trying to pull the fuel from the tank through the filter by supplying it under pressure.
2- cools the pump these are a flooded pump and use the diesel to cool it by supplying more fuel than is required it bypasses the pressure relief valve and cools the pump.
Now this is just theory. I haven't had a chance to try it on mine yet as I'm looking for a suitable pump. I'll be moving my main filter to under the Ute near the tank with the pump and running a 2 micron filter up front.
Thought I'd put this out there and see what you guys think. Let me know!