Spicer 4-speed shifting - Page 6
 

Spicer 4-speed shifting

Started by richard5933, November 08, 2017, 03:07:31 PM

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luvrbus

It is not your fault Gary it was mine I was just trying to help you with some information in a hard to find manual for a 05 Eagle ps thanks for the printing tips
Life is short drink the good wine first

TomC

I have nearly 1.2 million miles on my truck. I had a 13spd single over driver transmission in it (RTO-14613A). The clutch had never been replaced-that might give you an idea how I shifted. When I had the 13spd taken out and the Allison HT740 installed, I looked at the clutch. Still had about 1/16" lining left and the flywheel was in good shape. BUT-I sure do enjoy the Allison HT740. It has what is called soft shift. When it shifts from 2-3, and 3-4, the torque converter releases for the shift then re-engages after shift. No hard shifting. Even though the Allison HT740 doesn't have overdrive (the 13spd single overdrive had a .86), with my 3.55 and 11R-24.5 rubber, I'll have an economical cruise of 55 @ 1,548rpm, comfortable cruise at 65 @ 1,830rpm or if in a hurry 75 @ 2,112. Good Luck, TomC
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

Oonrahnjay

Quote from: RJ on November 08, 2017, 05:30:42 PM... Send me your email address in a private message and I'll send you an article (in .pdf format) I wrote a few years ago about shifting these beasts. ...
RJ 

     Yep.  I don't remember where I found this (I think it useta be online somewhere), but we had a fuel tanker truck at work with a 4 speed and I was totally vexed at driving it -- I would put it in first and drive to the airplane, put it in PTO and fuel, then switch the engine off put it in first and start up and drive it "home".  I read RJ's article and was driving it and shifting it like a pro in a couple of days.
     It does remove the "am I damaging something" stress to be driving Somebody Else's Vehicle, but I found everything that RJ had in that article to be correct and helpful.  (Full disclosure -- I've never had to drive a manual anything in any bus, but ITSM that the principles are similar enough.)
Bruce H; Wallace (near Wilmington) NC
1976 Daimler (British) Double-Decker Bus; 34' long

(New Email -- brucebearnc@ (theGoogle gmail place) .com)

RJ

Quote from: Oonrahnjay on November 24, 2017, 07:36:44 AM
I don't remember where I found this (I think it use to be online somewhere). . .

Bruce -

It still is online, over on the BNO board, under the "Articles" tab.

FWIW & HTH. . .

;)
1992 Prevost XL Vantaré Conversion M1001907 8V92T/HT-755 (DDEC/ATEC)
2003 VW Jetta TDI Sportwagon "Towed"
Cheney WA (when home)

Gary LaBombard

The online Eagles manual that was recommended some time ago in this post has information pertaining to Eagles in particular on pages (#15 & 16) that may help with RJ's information on gearing your bus up and down. Here is link to that manual, go to the page numbers mentioned if you have any interest.
https://www.scribd.com/doc/78693843/Eagle-Driver-s-Manual
Gary

Oonrahnjay

Quote from: RJ on November 24, 2017, 09:28:17 PMBruce -
It still is online, over on the BNO board, under the "Articles" tab.    FWIW & HTH. . .
;) 

     I'm glad to hear that - like I said, it helped me when I needed it!   Thanks,   BH
Bruce H; Wallace (near Wilmington) NC
1976 Daimler (British) Double-Decker Bus; 34' long

(New Email -- brucebearnc@ (theGoogle gmail place) .com)

Gary LaBombard

Gary