Allison MD3060 unlock tutorial

[Sleddgracer]

Originally Posted by cadillackid

thats how many great things are invented.. not someone sitting around saying "hey maybe we should build a...." its often you have a problem and you need to do whatever you have to in order to solve it and complete a task..

my parents, grandparents, aunts and uncles all homesteaded in northern BC and northern Alberta starting in the 20's - I loved hearing their stories of the obstacles they faced and the ideas they came up with to solve the problems - my mother's father came up with a one man whip saw idea to cut the boards for the floor on their cabin - a rack sticking out from a bank where logs could be dragged to by his horses, a tree over head - tie one end of a two man saw to a branch large enough to pull the saw up, with my grandfather underneath providing the cutting power on the down stroke - a brutal job with sawdust falling on him with every down stroke, mixing with his sweat - they lived on their homestead in that cabin until they passed on in their mid 80's - every time I visited I could see grampa's axe strokes in the timbers, and how he had notched the logs to fit and I had a hard time imaging how much work that must have taken - when I was young, my dad showed me how to use a broad axe and an adze - I used them enough that I know how, and how much work they are - lol

[HazMatt]

It's also a common theme in Redneck tragic opera, often accompanied by the line,
"Hey, watch this! Y'all aint gonna believe this sh1t!!!"

[PatrickBaptist]

Originally Posted by cadillackid

thisd is cool stuff... the 97s I worked on with electric pumps were vans.. I know there seems to be a lot of differences between the Pickups, regular vans, and cutaway chassis vans... I HAVE no idea how manufacturers keep up with everything SKU wise

Only 7.3 vans I've touched were 99 and up, so I have no problem taking you at your word. There are some differences, the vans had a little larger turbo than the Fseries got. I drive a Evan but it's not a diesel I hate to admit.
ALl the same ford should have always used the electric pump it wasn't new tech or anything, makes life so much easier and much less likely to crap out than the mechanical ones and so much easier to replace.

I've gotta replace the output shaft seal on the MD3060, doesn't look like it will be hard, any advice?

[Ringa]

Originally Posted by PatrickBaptist

I've gotta replace the output shaft seal on the MD3060, doesn't look like it will be hard, any advice?

Check the tone ring for movement as well. Known issue with them being loose on the shaft and causing erratic output.

[Ab01ns]

Success

[o1marc]

Originally Posted by Ab01ns

SuccessAttachment 36343

What process did you use?

[Ab01ns]

Originally Posted by o1marc

What process did you use?

PCM. I just threw money at it as thomas isn't doing the next round of unlock submissions until mid September and I leave for a 8000km trip in 10 days

[o1marc]

Originally Posted by Ab01ns

SuccessAttachment 36343

Originally Posted by Ab01ns

PCM. I just threw money at it as thomas isn't doing the next round of unlock submissions until mid September and I leave for a 8000km trip in 10 days

What was the charge for the unlock?

[david.dgeorge07]

Good for you! How’s your top speed/rpm looking?

[Ab01ns]

Originally Posted by david.dgeorge07

Good for you! How’s your top speed/rpm looking?

I will be taking it for a shakedown run soon. Calculator says around 1800rpm @ 63mph which is exactly what I want

[EastCoastCB]

Originally Posted by o1marc

What was the charge for the unlock?

Prob whatever the replacement PCM cost.

[Ab01ns]

Originally Posted by o1marc

What was the charge for the unlock?

895 for a used TCM programmed for 6s. I will get 495 back when I send in my old one as a core

[cadillackid]

NICE!! so far the best way I have found to do it is to reflash a TCM with a CIN number from one that has the same engine RPM range and 6th unlocked.. a replacement TCM is the same thing.. have to make sure its the same RPM range and also same throttle type and everything should just work..

-Christopher

[o1marc]

Originally Posted by Ab01ns

895 for a used TCM programmed for 6s. I will get 495 back when I send in my old one as a core

$400, seems they've gone up from the $250 price being thrown around last year. Seems they see the demand and can charge what they want.

[cadillackid]

all depends on where you get it from.. there are various places with various prices

[o1marc]

Originally Posted by cadillackid

all depends on where you get it from.. there are various places with various prices

I was referring to the labor cost at PCM. If he is getting $495 credit for the core, that means labor was $400. They said last year they were doing them for $250

[Danjo]

Originally Posted by Twigg

I am hearing that Thomas have a cut-off at a maximum calculated speed of 75

This isn’t true for the Thomas Minotour short bus. I’ve done a little over 85 in it. It could do faster than that unladen, but I eased off.

Not germain to Alison I know.

[Ab01ns]

Originally Posted by Danjo

This isn’t true for the Thomas Minotour short bus. I’ve done a little over 85 in it. It could do faster than that unladen, but I eased off.



Not germain to Alison I know.

Short bus is a whole different ballgame than the buses we're talking about that came with 3060's

[EastCoastCB]

Originally Posted by Danjo

This isn’t true for the Thomas Minotour short bus. I’ve done a little over 85 in it. It could do faster than that unladen, but I eased off.

Not germain to Alison I know.

I've seen full size Thomas buses go 80+.
Many do this as delivered from the factory.

[cadillackid]

yeah and i just 2 days ago had this discussion with a fleet dfirector who ordered 2 new Busses.. conventionals with 240 HP 6.7's and MD3060s that are greared to run 80 and the allison will only have 5 speeds.. same happens if he ordered them with allison 2000s'' only 5 gears are open.. his sales rep cant get many answers from the factory either as to why he cant run a lower ratio and have 6th open.. he wants the quick take off in first and second gears of a low ratio but being able to run fast as these busses have to traverse I-75 with a speed of 70-75 and not run the engine at its rev limiter.. but neither thomas nor bluebird will sell the bus with all 6 gears open unless it is a non-school bus.. he can buy a thomas transit with transit windows , transit seating, no school signals and it can be ordered as an activity bus and will come with all 6 gears on the 3060 operable....