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Bookmark or Share- NHC 250 safe power Mods. - SteelSoldiersThe NHC 250 does not have piston coolers, so you will not be able to run it hard. They did make small cams in the 400HP range though. You can step up to 290-300 injectors only if you turn up ur fuel pressure. you add more stress on the camshaft when you turn up the rail pressure.
- Killing NHC 250s -what we have learned killing 3 of them.The NHC 250’s have become sort of infamous for cavitation caused liner failure. We saw some pitting damage in two motors but none on the third. Chasing cavitation issues was a red herring for us, it distracted me from what I was doing that was actually killing them.
- M 923 NHC 250 leaking fuel pump/fuel control shaftAnyone ever had a NHC 250 fuel control shaft leak that they fixed? Mine has a drip that causes me to lose prime after a few days and is causing slower starts. Runs fine after start up but is more annoying than anything. Is it a simple repair like an o-ring or more complex? Is it worth a tear down or just as easy to buy another used serviceable ...
- Cummins nhc 250 - SteelSoldiersNHC, no turbo, 240hp Physically, its about the same as an NTA (half way down page) Last edited: Jun 4, 2012.
- Cummins NHC 250 vs 6CTA 8.3 opinions - SteelSoldiersCONS -- parts availability, starts better than the NHC-250 in cold weather but still needs a sniff of ether I've had both NHC-250-powered trucks (M929A1, M928A1, M932) and 6CTA 8.3-powered trucks (M936A2, M932A2 and now two M925A2s). While I love the 6CTA 8.3 motor, I would suggest that anyone who is interested stick with the NHC-250-powered ...
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