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The pump on the M900 series 8.3 is similar but not the same as the smaller brother 5.9l, with that in mine, does mods will wake is it enuff for a great running truck as far of the EGT's the exhaust housing is good diameter so you should be good, probably would not be a problem unless you pulling...

PureMayhem. i have two trucks one a M925 and the other M931, both had the fuel screw set differently the 25 the screw head was flush with the jam nut where the 31 was about of a 1/8 of inch out, this may not be true to all but it was on both of mine, but remember to count the turns out so you...

I think you have nothing to be concern with, i think 2 turns on the rate screw is not enough to build to much heat unless the screw was out some as i have a M925A2 and a M931A2 and the 25 the screw was flush with the nut and it took almost 5 turns to notice a power increase even after working...

What did you do with air screw, did you back it out or screw it in towards front of the engine, i when to my friends bosh dealer and saw him run a 8.3L MW pump on the stand , he made some adjustments and could see the extra fuel provided with small adjustments especially in the back of the pump...

Yes i will, looks like we may be picking a M925A2 tomorrow so with in the next weeks i will do it with some pictures, i think its well documented here, more pictures will and more people that do it and post about it will make easier ....

Ok thank you i will once i located a vehicle, got my eyes on one near me, thank you again willie

Thank you for the fast reply, once i get a truck will install then and crack fuel up about 3-4 turns out, i think i understand that if not will read the thread again....:driver:

Got my GSK kit today , if i recall you keep the outer spring and seat which i think is the idle spring, you will replace the inner cup with the 2 new inner springs for 2800 RPM and if you want to bring it up to 4k you put the small spring supply {which i am not doing}, is this correct is what i...

Yes sir thank you

Just order my GSK, now just need to find a clean M931A2 or M932A2 , LOOKING AT 2 IN EBAY,,,,,,[thumbzup]

Got it thank you

Thank you

Any body knows a good source for GSK springs thank you

This may help WM, when i work on a diesel shop we use to trouble shoot trucks that would run poor or where having starting problems of course they where 5.9 cummins so we had a fitting that connected to the PT pump set up in to a fuel can, we use to set it on top of engine and it would gravity...

Very good info hooping to get a A2 zoom will turn up the fuel and maybe do the GSK , i have the tool for the governor springs some where from my 5.9 PT days will look for it thank you for all the postings ...