From DieselChat: swapping in an auto ... Log Out | Topics | Search
Moderators | Edit Profile

BNO BBS - BNO's Bulletin Board System » THE ARCHIVES » Year 2011 » May 2011 » From DieselChat: swapping in an auto in an MC8 « Previous Next »

Author Message
Buswarrior (Buswarrior)
Registered Member
Username: Buswarrior

Post Number: 2084
Registered: 12-2000
Posted From: 174.89.177.214


Rating: N/A
Votes: 0 (Vote!)

Posted on Saturday, May 14, 2011 - 9:15 pm:   

a question posted blindly in DieselChat by "rob"

rob: I am changing from my 4 speed spicer to an HT 740 Allison in my 1977 MCI. Any feedback on if I take the whole engine and transmission cradle out or do I lift the bus and move/remove the transmission alone?

happy coaching!
buswarrior
joe padberg (Joemc7ab)
Registered Member
Username: Joemc7ab

Post Number: 502
Registered: 6-2004
Posted From: 66.38.159.33

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 12:18 am:   

Easiest by far would be to remove the cradle and slide it onto a gurney. It would pay you to build one if you donot have access to one. Heavy angle iron, square or round tubing will work very nicely.


Joe.
JC Alacoque (Jc_alacoque)
Registered Member
Username: Jc_alacoque

Post Number: 102
Registered: 7-2006
Posted From: 207.34.166.7

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 1:13 pm:   

I would pull the engine/trans out onto a dolly. Can be done in a day. Not that hard. Much easier then to take 4 speed off and bolt Allison on. While engine is out, other things can be done: fix oil leaks, clean up, paint, etc.

JC
Luvrbus (Luvrbus)
Registered Member
Username: Luvrbus

Post Number: 1118
Registered: 8-2006
Posted From: 74.33.60.241

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 1:31 pm:   

If he is going to use the DD double cooler about the only to do it is remove the engine,changing the cooler is a all day job with the engine out lol
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb

Post Number: 1499
Registered: 7-2006
Posted From: 97.224.187.56


Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 2:11 pm:   

Now...THIS IS bus talk...great questions..great responses; helpful, thought provoking, educational!!

What a board...thanx bossnut and best wishes on all your patience...and endurance!!! :-) :-)

FWIW
RCB
marvin pack (Gomer)
Registered Member
Username: Gomer

Post Number: 1386
Registered: 3-2007
Posted From: 71.55.178.71


Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 4:22 pm:   

I had a man change one out and all he done was built a scafold [?],put it under the engine cradle,and pull the bus out and wah la there sits the engine and all. LOL

gomer
joe padberg (Joemc7ab)
Registered Member
Username: Joemc7ab

Post Number: 503
Registered: 6-2004
Posted From: 66.38.159.33

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, May 15, 2011 - 5:53 pm:   

In addition to my above post, nicer yet is to have casters on the gurney and the whole operation done on a level concrete floor. If one of my computer whiz kids was at home, I would post a picture of the one I build, but they have all flown the coup.
Jim Sanders (Sandy)
Registered Member
Username: Sandy

Post Number: 52
Registered: 1-2011
Posted From: 69.199.96.250


Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, May 16, 2011 - 10:59 am:   

Gomer you make it sound so easy I want to pull mine ALAS NO Skid Bolted frame Joe why is it that when you need the whiz kids they are gone!!!! No kids no more JIM
marvin pack (Gomer)
Registered Member
Username: Gomer

Post Number: 1387
Registered: 3-2007
Posted From: 71.55.178.71


Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, May 16, 2011 - 7:25 pm:   

The man pulled it out in about 2-3 hours. He was so small the he could almost get anywhere in the engine campartment. LOL He just unhooked all the lines,unbolted the cradle,jacked up the rear[?] of the motor and pulled the bus out and when he got the other end of the cradle he jacked it up on both sides and thar she be.

gomer
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb

Post Number: 1500
Registered: 7-2006
Posted From: 97.212.210.84


Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, May 16, 2011 - 7:50 pm:   

Tha 'twouldn't work in a Crown...amidships, pancake style mount :-) :-) :-)..wouldn't even try!

In such case, if the coach were on dollies, front and rear, and could be moved sideways,...one would still need to "lift". Think about it....

Thanx Gomer...for the "encouragement".:-)
FWIW
RCB
Mark R. Obtinario (Cowlitzcoach)
Registered Member
Username: Cowlitzcoach

Post Number: 217
Registered: 4-2001
Posted From: 107.61.87.10

Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, May 18, 2011 - 12:49 pm:   

LA Unified had a cradle the power package of a mid-ship Crown could be nested in. Once everything was disconnected the bus was sent up in the air on a two post lift.

As soon as the bus was high enough the old power package was shifted aside and another one shifted into place and the bus lowered down.

As soon as all of the connections were reattached the bus was good to go. A complete power package swap in less than four hours. It took almost as long to burp the cooling system as it did to do the swap.

Once everything was out anything major could be fixed without the bus being out of service for days.

I doubt the new rear engine buses are as easy to service as a Crown.
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb

Post Number: 1501
Registered: 7-2006
Posted From: 97.215.130.133


Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, May 18, 2011 - 2:38 pm:   

I would guess you are right about that Mark. I haven't had to pull engine or transmission, but have done lots of stuff"under" it, on blocks, of course. AND...one can work on both sides without "going under"! :-)

How did they lift it...on the beams?

RCB
Mark R. Obtinario (Cowlitzcoach)
Registered Member
Username: Cowlitzcoach

Post Number: 218
Registered: 4-2001
Posted From: 107.63.169.48

Rating: N/A
Votes: 0 (Vote!)

Posted on Thursday, May 19, 2011 - 12:42 pm:   

The bus was lifted on a two post lift with one post under each of the axles--a pretty common sort of hoist found in a lot of bus garages.

Add Your Message Here
Posting is currently disabled in this topic. Contact your discussion moderator for more information.

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration