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That sounds right and makes sense, but I don't know for sure if this will accomplish what you want. I do know that if a vehicle comes in with a hard start, white smoke complaint, after checking some other stuff, verifying the engine to pump timing is done. I have seen pump timing off just enough that when the engine is pinned and the pump timing tang is not centered, either way, just enough for the pin to not seat all the way, cause issues like hard start , low rpm, slow acel/stumbling on acceleration and white smoke. But, timing the engine, popping the gear off and backing the engine is a 20 minute deal. It will be harder to figure out the 8°. Your head gasket will be fine! Try it and see what happens, it is easy to reset if it doesn't do what you want it to.
And just an fyi, the MW was one of the most finicky inline pumps Cummins used. They were primarily used on things like school buses and garbage trucks. ReCon would re-man them and they would most always be hard to start or make white smoke. We got to the point that we would not use ReCon...they are a Cummins subsidiary...we would use a local ADS shop. The pumps that were done by recon were often taken to the local shop to see what was wrong. Sometimes only 1/2 degree off in timing caused issues, but that is internal pump timing, not engine to pump, two different things.
And just an fyi, the MW was one of the most finicky inline pumps Cummins used. They were primarily used on things like school buses and garbage trucks. ReCon would re-man them and they would most always be hard to start or make white smoke. We got to the point that we would not use ReCon...they are a Cummins subsidiary...we would use a local ADS shop. The pumps that were done by recon were often taken to the local shop to see what was wrong. Sometimes only 1/2 degree off in timing caused issues, but that is internal pump timing, not engine to pump, two different things.
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