41TE Assembly, Pt. V

by "Urambo Tauro" (urambotauro)
Published 04/06/2017 at 18:00

Tags: 41TE ; Automatic Transmission ; Rebuild ; Blog
STARS: 2

I WANT TO PAHMP... YOO UP

Now the core of the transmission is complete, from input shaft to output. Next, we’ll assemble the transfer geartrain & differential... 41TE Assembly, Pt. VI

Replies (6)

"RamblinRover Luxury-Yacht" (ramblininexile)
04/06/2017 at 18:07, STARS: 0

That looks to be about the size of the rear pump on my Cruise O Matic. The front pump is half again to twice as large. Two pumps of maximum pumpage because old autos are one giant semi-contained leak and Ford was being cautious as hell.

"Urambo Tauro" (urambotauro)
04/06/2017 at 18:20, STARS: 1

I guess Holley’s not the only place to find double pumpers lol.

Hey, speaking of Cruise-O-Matics, did you see the MX in that new Hagerty vid ?

"RamblinRover Luxury-Yacht" (ramblininexile)
04/06/2017 at 18:36, STARS: 0

Nice. How much did you pick up of the construction? It’s a little... odd in comparison to its contemporaries. Instead of having two Simpson ring gears with bands on them, it has a band each for the planet carrier and the ring, with two clutches on the two sun inputs and a sprag clutch inside the output assembly. It’s... quirky.

"Urambo Tauro" (urambotauro)
04/06/2017 at 18:44, STARS: 0

I haven’t familiarized myself with very many automatics, but FWIW, it reminds me much more of an AOD than of this Chrylser I’m working on. Which makes sense, since that’s what the AOD was based on.

"MM54" (mm54mk2)
04/06/2017 at 19:06, STARS: 0

If it’s like the old old powerglides with two pumps, the rear pump is so you can push-start it like a manual (driveshaft spins the pump which engages gear and starts the engine)

"RamblinRover Luxury-Yacht" (ramblininexile)
04/06/2017 at 21:08, STARS: 0

Well, that and to provide protection for rolling in neutral and general extra help. At the time the modern paradigm of a trans that can’t be safely rolled in neutral was pretty foreign - but not so foreign that Ford didn’t delete the rear pump in the late 60s to make room in the FX case for MX gears, making the FMX...