Sorry should have paid more attention to the model of truck you are working on ,that being said pressure lube is not required but is recommended on my PTO and mine was ordered with it. Thanks for the reply.The Allison HT700 series transmissions require a pressure lubed type PTO. Which your setup on a m939 series does not require.
The HT740 allisons are on top of the transmission at the 11 oclock position and pretty much a full blown MFer to put on since you have to pull the cab or pull the transmission.Sorry should have paid more attention to the model of truck you are working on ,that being said pressure lube is not required but is recommended on my PTO and mine was ordered with it. Thanks for the reply.
The system is originally setup to go from the engine to the fuel heater unit to the cab heater core then back to to the engine. I just ran it from the engine to the heater core directly.Wow, the 816 looks like a toy in comparison.
Does the 915 have engine coolant heat for the cab or are you without heat since deleting the fuel heater?
22F in Maryland this morning...brrr.
Hey Simp,Swapped the 11R24s out for 395 MVTs for a few trips i gotta take. I had a decent offer for the 11R24s i had on it so yea sold those. I am acquiring some 12R24.5 casings and wheels. Just waiting to find enough to get em recapped.
Bypassed the fuel heater system and replaced some heater hoses on the engine.
Had a few spare HEMTT/7 ton driveshafts laying around in crates. They are 46in collapsed length. The 915a1 has a 41in working length. Had a local shop cut it down so i could use it. Current shaft has a little play in the slip yoke so an easy fix for it.
Moved an 816 and 870A1 about 40mi to a easier place to work on the trailer where its dry. 915 didnt have much of an issue hauling it.
Used the wrecker to lift and lower the neck. Even once it was on the trailer. I had the front skids blocked up so i could still get back under itHey Simp,
Just admiring your pics and work on the 915. I have one question. Isnt the 870a1 a folding neck trailer? How did you get a loaded trailer on the 915 without a winch?
What did you do in the way of gaskets for each of the fits?Swapped the stock manifold for the Pulse type. You can see the smaller port differences. Part # M3801912 from Interstate Mcbee. $350 shipped in. Came with everything including new bolts. Swapped on the HT4B turbo.
Doesn't appear to be any gasket at the pump fitting, is that not needed, or am I just not seeing that right?Had to loosen and turn transmission filter return fitting and got the PTO installed. The cross 53 series double pump bolted right in that comes on the 916/920s.
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