Reply
 
Thread Tools Display Modes
 
Old 07-28-2015, 02:12 PM   #1
Mini-Skoolie
 
Ernst's Avatar
 
Join Date: May 2008
Location: Großenkneten, Lower Saxony
Posts: 15
Year: 1998
Coachwork: Blue Bird
Chassis: TCFE4000A
Engine: Cummins 5.9 TA
Rated Cap: 48
Send a message via Skype™ to Ernst
Retrofitting a retarder

I have a 1998 BB TCFE400 with a Cummins B235 and an Allison MT643.
When we're on holiday in mountainous areas (France, Germany, Austria, even Belgium or Luxemburg) I often feel the miss of an engine brake or retarder.

Voith told me they can't fit a retarder on my drive shaft "because it is American" (everything is metric, so I think this is BS!)

Has anyone ever converted an Allison MT643 to a MTB643 or 644? What are your experiences?
__________________
Regards,
Ernst & Sylvia
Ernst is offline   Reply With Quote
Old 07-28-2015, 02:31 PM   #2
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
Very cool location!

I too am interested in this subject... I know there is a place in Colorado that specializes in driveline retarders and fitting them.
EastCoastCB is offline   Reply With Quote
Old 07-28-2015, 02:33 PM   #3
Mini-Skoolie
 
rvingoffgrid's Avatar
 
Join Date: Jun 2015
Location: Montana
Posts: 65
Year: 1990
Coachwork: happy camper RV repair
Chassis: international
Engine: 360 international
Rated Cap: 66 passenger
they don't make retarders for the older non electronic trans. they do however make a electric retarder that goes on the differential. called a thelma. i believe its made across the pond as they say, germany maybe? not sure of its origin. some of the buses i have converted had them on them the dina mexican made buses had them they worked well but where prone to problems like all german electronics, they are pretty good with mechanical things but electronics are best left to americans or japanese. but i would think you could get one pretty cheep if you can find a source might start looking for a bus junk yard like nimco, and see what they charge for a used one off a old dina. i found this on the web http://www.telmausa.com
__________________
rvingoffgrid.com
rvingoffgrid is offline   Reply With Quote
Old 07-28-2015, 02:51 PM   #4
Mini-Skoolie
 
Ernst's Avatar
 
Join Date: May 2008
Location: Großenkneten, Lower Saxony
Posts: 15
Year: 1998
Coachwork: Blue Bird
Chassis: TCFE4000A
Engine: Cummins 5.9 TA
Rated Cap: 48
Send a message via Skype™ to Ernst
Thanks! I'll look into Telma again. Last time I searched, they only had 24 V versions. As you say, quite affordable on different truck scrap yards. There hardly are any trucks in Europe with a 12 V installation
__________________
Regards,
Ernst & Sylvia
Ernst is offline   Reply With Quote
Old 07-28-2015, 04:40 PM   #5
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
I could have sworn Allison built an "R" version of the 643... and that the R stood for "retarder".
EastCoastCB is offline   Reply With Quote
Old 07-28-2015, 04:43 PM   #6
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
The MTB643 has the output retarder.
EastCoastCB is offline   Reply With Quote
Old 07-28-2015, 05:00 PM   #7
Mini-Skoolie
 
Ernst's Avatar
 
Join Date: May 2008
Location: Großenkneten, Lower Saxony
Posts: 15
Year: 1998
Coachwork: Blue Bird
Chassis: TCFE4000A
Engine: Cummins 5.9 TA
Rated Cap: 48
Send a message via Skype™ to Ernst
So how can I change a MT643 into a R or B version....?
__________________
Regards,
Ernst & Sylvia
Ernst is offline   Reply With Quote
Old 07-28-2015, 05:19 PM   #8
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
Truck repair Denver CO: Truck, Bus and RV repair Denver CO TMS Truck & Bus Services

KLAM Magnetic Retarder | Bus Driveline for Sale | Davey Coach

I think you'd be looking at a tranny swap...
Allison mt 643 - RVTalk Forum

MTB 643 — United Transmission Exchange is a Full Service Independent Facility with over thirty years of experience rebuilding Allison Transmissions
EastCoastCB is offline   Reply With Quote
Old 07-28-2015, 06:26 PM   #9
Skoolie
 
Join Date: Mar 2010
Location: Texas
Posts: 206
Year: 1997
Coachwork: AmTran
Chassis: Genesis
Engine: DT466
Rated Cap: 84
Be aware that UTXexchange is currently hacked and malicious as indicated by Google search and Avast Antivirus.
Timelord is offline   Reply With Quote
Old 07-28-2015, 06:28 PM   #10
Mini-Skoolie
 
Ernst's Avatar
 
Join Date: May 2008
Location: Großenkneten, Lower Saxony
Posts: 15
Year: 1998
Coachwork: Blue Bird
Chassis: TCFE4000A
Engine: Cummins 5.9 TA
Rated Cap: 48
Send a message via Skype™ to Ernst
My Avast told me so....

Thank you for the links. I'll look into it tomorrow.
__________________
Regards,
Ernst & Sylvia
Ernst is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 01:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.