Joey Mack

Mack tranny's since the mid. 90's took 75W90 synth. From the factory.. Do you have a Maint. And Lube book? There should be other grade listings for the region and usage..

Merry Christmas!!!!

Ok.. im grabbing at straws.. I guess since you confirm the elec. Issues are out, for the most part.. I guess it's back to loss of fuel prime..

Yes check the RPM/TDC harness.. I suggest you take the heat shields off and look really good at the EUP wires.. they tend to rub through, and can short out against the block.. it is a bit of a long shot, however, I have fixed many of them too..

I wish. Ether was not needed.. it's not healthy for a diesel..

I have fixed many bad wires at the flywheel sensor, on the engine side of the 2 wire harness.. I find the insulation rotted off, and sometimes frayed wires, and even a terminal in the plug, loose and pushed in too far to make a good contact.. and as stated, a starter that is drawing to much power, can cause this issue. I assume you don't see any outside diesel leaks around the file pump or lines.. is the oil level rising due to a leaking fuel pump seal? Jojo

What is the voltage drop while it is cranking?? Like FJH said, below 10 volts, the EUP,s won't fire.. of the starter pulls a lot of amps, it will lower the available voltage for the EUP's..

I will send some next week.. we will be in the 60's.. Global warming is a joke... The Earth is going to do what it wants too.. our old trucks, are Not the issue.. I have a generator in my shop for a customer. I will be out there tomorrow.. glad you got some of the cabinet work done..

It's cold here in Central N.C. 19 degrees right now (5:30) supposed to be around 10 degrees tonight.. the wind is up too 40 mph.. for two nights in a row, our secondary power lines on my street burned up. It was a beautiful display of small fire balls and dripping melted wire, and small explosions.. My internet is out, so the cell phone is getting a workout.. our house still has power, but next door and down the street is out.. I also have a 'paid' 5 day weekend, so I'm just going to chill out, and do some small repairs around the house.. Jojo

Check circuit breaker #70, it is Bunk HVAC,. #72 is also an HVAC circuit breaker,, fuse 25 is the cab HVAC.. these are in the top panel..

The Biden Klan, is trying hard to speed up the Jan. 6 hearings, so they can use the 14th Amendment to keep Donald Trump from running in 2024.. I wonder what lies they will come up with to ensure he can't run again... ??

There is a wire harness that curls over the frame under the cab on the left side.. I have replaced/repaired them before. PTO issues is one of the symptoms.. they rub through and short out.. jojo

In the cab. Right side fuse panel.

If it were me I would check all the grounds.. they are the gray wires through out the harness'. under the top dash panel you can see some grounds, above the throttle pedal is some, and outside on the fire wall, is a pass through, and there is where i have found loose wires.. jojo

the ground wire... All the grounds are GRAY..

ok.. I'm sorry that I do not have the answer... I have the book on them, but am not able to get the info right now.. Hopefully someone can post a spec sheet.. Once again, Im sorry I cant help right now,,, Jojo

I would like to add something.. I dont know what years had this style, but, the last set I repaired for this same reason, (2005 CXN) The centering pin was actually made into the Z-Spring. You can knock them out and machine your own replacement pins, but the one that I repaired, 2 of the Z-Springs had spider cracks around the pin's, and because I was replacing all 4, the owner had me buy all 4 Z-Springs.. So if your Z-Springs are healthy, you can make your own centering 'Mushrooms' ..also, the top block on the rear axle may be worn where the mushroom goes.. The front 'X' may not have the spacer block. also take a good look at the pin that is made into the top of banjo housing. They are round, but end up looking like a 'D'.. weld it up, and grind it back in shape.. Jojo

here are 2 RD vin.'s . RD 690 S/ 023858.... RD 690 S/ 023859.. '96 model year.. I took care of these 2 trucks for 8 years.. Good luck ,,, Jojo MERRY KWANZAHANAMAS... 🍻

what is the 3rd member? do you mean the carrier or rear gear assembly? can you post the year and models of both trucks? a lot of these will fit other models, but the newer carriers and banjo housings have an extra bolt inside the top reduction housing.. ( not a big deal) and of course,,,,, we all love pictures..

Do you have an M-Drive tranny or Eaton Auto Shift, or I-Shift?? you also called it a CXU 630.. did you mean 613?

is one a 310 and the other a 310M ? (Multi speed reverse)

I was curious if the stroke of the pump was the same. Where it wouldn't be too long and bind, or too short, reducing the efficiency.. Therefore,. FJH makes sense.. and I'm really just babbling.. :). Jojo

But Cascade has "Sheeting action, for drops that Spot".

Boing!!!!!! That's the cure for E.D.

FJH.. your right about a lot, especially my not sleeping at night, waiting for the engine to crap out again.. The only backing I have is experience, and experience tells me to STAY AWAY!!!! :).