2stacksuperdog

The jumper from negative to positive is to make them from 6 volt to 12 volt

Exporting to all countries is OK except Africa and Haiti the poor trucks are beat and beat harder there. The exporters tell you "20yrs from now the truck will still be running, it wont look the same but it will be running with probably the same oil in it too"

What happened to the good old American R-series?

Same here i do what im suppose to and my parents are happy

So they are like that to everyone just not us CT people

We put exides in our R-model and it sat for the last 3 years and still had a charge. We had Motorcraft in our 01 F350 that lasted 5 yrs and the second set 4

How did you ever make out with starting your r-models?

Ours

Preece's Auto Meriden, CT

CT has two guys that go around checking

When would you need it done?

We have a switch hidden in the cab that turns it on and off that way if they want to check emissions its all good. My dad disconnected the line for tranny since hes the only one that drives it.

She don't like pictures...

Federal law states minimum of 7 lights on back being RED

All macks had them from early '70s to about '85

Its not pressurized in reverse only in neutral, direct, and high it goes into the manifold where it connects to aneroid valve.

Also the line is pressurized

Mack made a video about those trucks because of the loads they were moving

Thats the problem, my dad has been working on Macks for 35 years and hes never seen one besides our 93 RB had it but that was a 8LL. He was at mack one day and asked the service manger what it was and he didn't know either. We didn't notice it until today on our superliner when we the aneroid valve was leaking because of it. We just put another rebuilt 12 speed in it and we were trying to figure it out so my dad asked his friend who has a 12 speed in his R-model what it was and he said there was some torque valve on the tranny that went to the puff eliminator/aneroid. he never noticed it on his till his air ride cab broke and broke it off the transmission. he said he never put it back on so it cant be too important?

I hear these stories from my parent all the time! I would love to buy an original, mechanical brand new Mack

What up with the air line that comes from the tranny to the aneroid valve, we heard it was to reduce power when to muchtorque?

Brooklyn Show

The DMs had regular steel bodies on them