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Topic: Allison MT 643 transmission manual. (Read 472 times) previous topic - next topic

Allison MT 643 transmission manual.

Slowly but surely, my deferred maintenance list is approaching the drive train.  After perusing the Allison web site I settled on this manual as most likely to be the one I need.  What I want to do is change the oil and filter and check the external stuff, throttle cable, governor, and speedometer.

Can anyone here tell me if this is the manual I need to buy? Preventive Maintenance Manual PM 2572E.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.

Re: Allison MT 643 transmission manual.

Reply #1 –
 I simply ordered the filters for the 643, internal and external . 
  I also loosened the throttle cable to  get it to upshift sooner.
 Looks like lubing the little speedo drive box is a good idea .
 MM

Re: Allison MT 643 transmission manual.

Reply #2 –
Quote from: Protech Racing –
I simply ordered the filters for the 643, internal and external . 
  I also loosened the throttle cable to  get it to upshift sooner.
 Looks like lubing the little speedo drive box is a good idea .
 MM
I've spent most of my life so far working on antique equipment for friends.  I learned early on to love the factory service and parts manuals.
The speedo drive box is high on my gotta look at list for just that reason.  In the meantime I purchased a GPS heads up display speedometer.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.
 

Re: Allison MT 643 transmission manual.

Reply #3 –
Check on the bluebird website, that's where I found the 3208 service manual that ii posted n the forums media section, media section may have 643 litireture also
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake