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I've change both fuel filters on m m923a2 before with no issue. this time i removed the tank and cleaned all the gunk out before changer the filters. i topped off both filters and pumped till fuel came out of the bleed screw. truck started and ran fine for a few minutes then died. i...

i just found a fourth o ring inside the small whole. I'm leaving for now because it looks ok.

one o ring was split and another had disintegrated,

THANKS

My fan actuator is leaking air from the smaller hole on the end cap. i cleaned and lubed it but still leaks air. i was wondering if it should have an o ring. it did not have one when i took the cap off?

i havee an actuator that is leaking air through the tiny hole - not the larger hole in the end cap...i cleaned and lubed it. still leaks. should there be an o ring in there. when i took in apart it did not have one?

THANK you so much!

forgive my ignorance - what engine oil weight do i use for my 923a2?

sign me up and merry christmas

my m923a2 had air escaping from the air dyer took it apart and decided not to rebuild just replace. replaced and all was fine for a few mile and it started leaking out of the same blow out valve. i am at a loss any ideas out there? i used a punch to press the valve closed a virew time...

I am also have an air dryer problem the air dryer was leaking air out the blow out hole. tried to free up the valve with a screw driver still wouldnt seat. took the dryer off and was was pretty far past a rebuild so in put a new dryer unit. worked for the first few miles then the...

does anyone have an NSN or aftermarket part # for this?

thanks!

trucks been working great. now have a air leak from a valve above the rear axle?? bleeds out over night now. was wondering what it is anda part # if it needs to be replaced?

Found the problem..you were right again.. i had a misaligned service brake diaphragm on the rear axle. Truck is fixed and took it for a test drive. thank you and all that helped. i learned a lot.

ok - here is a pick of the rear axlw valve. been paint and cant read EXH - which of the lines is the exhaust?

forgot to mention...now the abs light is staying on as well?

OK. some progress. i replace the new bad treadle valve with a new one and it stopped the venting of air to the stack from the cotton covered line. truck came up to pressure and releace the spring brakes. i did have a small leak from a misaligned spring brake diaphragm but got leak to stop...

IN

i'll get another one and give it a try.