Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Caterpillar 3208 Solutions

Caterpillar 3208 Solutions This sub-forum is hosted by Mike Hohnstein who has been at this kind of thing for 50+ years now, guess I'm addicted. The saga has been all about progressively larger shop space since then. Honestly, never wanted to get into the CAT 3208's that were originally considered to be a throwaway engine but that's all that works in a FC in my world. Same thing with my Ford toter, that came with a NA, too much effort to hang in a 6, so been at it with the CAT V-8 for 20 years now. In reality you can get excellent life out of a CAT 3208 if it's built correctly. Post your questions about the CAT 3208 engines here and Mike will try to help you out.

Site Search:
Reply
 
Thread Tools
  #1  
Old 08-06-2016
DreamerTN DreamerTN is offline
Member
 
Join Date: Jul 2016
Location: Kingsport
Posts: 30
Default Adding a Jake or Electromagnetic Retarder

I'm considering a 1982 FC35

It is equipped with a Cat 3208 Turbo and an Allison 4 spd automatic transmission.

It's a beautiful coach and has had meticulous service and upgrades. But it Doesn't have any type of retarder. The small mountains and large hills around here demand (imho) something other than just the service brakes to descend safely.

My question is: Can a Jake system or an electromagnetic retarder be added to a coach that has never had one?

And if so, what factors need be considered?

Thanks to all who can help educate me on this...
__________________
Chris Lacey
Kingsport, TN
Looking for 31' FC
Reply With Quote
  #2  
Old 08-06-2016
Mike Hohnstein's Avatar
Mike Hohnstein Mike Hohnstein is offline
Senior Member
 
Join Date: Jan 2008
Location: NW Milwaukee Metro Area
Posts: 4,592
Default

That bus will be fine just the way it is, other than Mt.Eagle nothing to worry about, and that grade isn't an issue. All you need to remember is go down in the same gear you use to climb the grade and don't let the RPM go over 2800 on decent. Might want to review the CDL information on mountain driving, lots of good info there.
As far as retrofitting a drive line retarder, figure 11 grand installed, an exhaust brake is much cheaper but not real effective and doesn't do the exhaust valves any good.
__________________
Mike Hohnstein
FMCA 97824
'83FC35rb
Germantown, WI/Myrtle ID
www.AutoTransDesign.com

http://s767.photobucket.com/user/mhohnstein/library/
Reply With Quote
  #3  
Old 08-06-2016
DTW1086@cox.net's Avatar
DTW1086@cox.net DTW1086@cox.net is offline
Senior Member
 
Join Date: Jan 2009
Location: Mesa,
Posts: 1,787
Default

I run an 80 FC 31 NA all over the mountains in Arizona with no secondary braking and have never had a problem. Like Mike says use lower gears and watch your RPM's. Do Not ride the brakes, hit them hard to bring RPM's and speed down then get off til you need to do it again.
I know Monteagle and it is an ant hill compared to stuff I drive on.
__________________
Dave Ward
Mesa, AZ
1980 FC 31 SB

THE SHORT BUS
(She's Just a Little Slow)
Reply With Quote
  #4  
Old 08-06-2016
Bill Pape's Avatar
Bill Pape Bill Pape is offline
Administrator
 
Join Date: Jan 2008
Location: Commerce
Posts: 11,667
Default

Quote:
Originally Posted by DreamerTN View Post
I'm considering a 1982 FC35

It is equipped with a Cat 3208 Turbo and an Allison 4 spd automatic transmission.

It's a beautiful coach and has had meticulous service and upgrades. But it Doesn't have any type of retarder. The small mountains and large hills around here demand (imho) something other than just the service brakes to descend safely.

My question is: Can a Jake system or an electromagnetic retarder be added to a coach that has never had one?

And if so, what factors need be considered?

Thanks to all who can help educate me on this...
Just learn to drive safe & defensive, Putz may comment on finding a donor school bus, lots of heavy hardware to transfer.
__________________
Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #5  
Old 08-07-2016
DreamerTN DreamerTN is offline
Member
 
Join Date: Jul 2016
Location: Kingsport
Posts: 30
Default

Thanks for the input guys. Our last diesel coach had a Jake brake and I really loved it. But the two we had before that one didn't have one. If you guys say I don't need it then I'll trust your advice.
I am thankful to have this group and I appreciate so much the experience and knowledge that good folks are willing to share.
__________________
Chris Lacey
Kingsport, TN
Looking for 31' FC
Reply With Quote
  #6  
Old 08-07-2016
Rich Johnson's Avatar
Rich Johnson Rich Johnson is offline
Chegment
 
Join Date: Feb 2009
Location: Connecticut
Posts: 165
Default Jake brake - not good on 3208

If you are talking about an exhaust Jake brake, the 3208 valves springs are supposed to be too weak. If it's electrical-hysteresis, system then the drive train setup is quite complex with many rotational torque issues. Been down the Williams escarpment with service brakes only and the speed recommendations are good advice.
__________________
Rich Johnson
1981 FC-33 RB
chegment001@yahoo.com
Connecticut 06089
Reply With Quote
  #7  
Old 08-08-2016
MRPutz's Avatar
MRPutz MRPutz is offline
Burnin Up in Az. :-)
 
Join Date: Apr 2008
Location: Mesa
Posts: 4,186
Default

I ended up purchasing an old '82 school bus with a 3208na & retarder. I bought the bus for the parts then sold the shell for scrap. My total out of pocket was about a grand for a spare engine, tranny, and the retarder.

The Thelma retarders are fantastic! I never worry about mountains anymore. I've driven FC for over 30 years and with caution managed to avoid any real issues. But the retarder sure adds a level of comfort and now I can stay behind those other vehicles that have different down hill rates than my own.

That was my biggest issue is having enough traffic that you could not brake at your own rate. When someone is braking more than you (jake) then you heat up your brakes more than necessary to keep a safe distance.

There's a few things involved in the install (like drive shaft lengths, angles, etc..) but if your mechanically inclined I think it's pretty much straight forward. The hardest part was locating and drilling mounting holes in the bus frame. I used a motorcycle lift to get it into place.

Use the donor bus to set your angles, locate your mounting holes, and if the same length bus you may even have the drive shafts needed! Unfortunately mine was 33' donor for my 35' bus.
__________________
Michael & Tami Putz
78FC35SB & 83FC35SB Wanderlodge - "Putz'n Around"
'90 GL1500 Goldwing | '67 VW Rail | '82 CJ5 Jeep
eMail=Mike.Putz@cox.net | Web=http://mikeputz.com/
Solar = https://www.solarpenny.com/SearchResults.asp?Cat=257

FMCA #236459, Good Sam #17270530, Vintage Birds #1509
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Retarder vs Jake Brake Joatha PT & WB (Twin Axle Pusher Unique Issues) 69 07-31-2017 10:51 AM
Adding Aux Air Compressor Fantic LX and LXI (Unique Issues) 0 03-01-2016 12:55 PM
Adding a bunkhouse Kiwi3 Ernie Ekberg's Remodeling and Repair 7 01-01-2016 10:43 PM
Trans Retarder vs Jake Brake? Skidder Engine 12 01-16-2011 02:17 PM
Adding gauge (s) NH Bill General 22 10-27-2010 08:23 PM

Web Search:

All times are GMT -4. The time now is 02:15 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.