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10-20-2019, 11:34 PM
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#1
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Mini-Skoolie
Join Date: Mar 2016
Location: MIAMI, FLA USA
Posts: 19
Year: 1999
Coachwork: 34 foot blue bird
Engine: CUMMINS 5. 9
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Jake brake
Jake brake, for a cummings 5.9 any info or help, need it for the hills.
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10-20-2019, 11:39 PM
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#2
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Bus Crazy
Join Date: Nov 2018
Location: south east BC, close to the Canadian/US border
Posts: 2,265
Year: 1975
Coachwork: Chevy
Chassis: 8 window
Engine: 454 LS7
Rated Cap: 24,500
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Quote:
Originally Posted by 1999bluebird
Jake brake, for a cummings 5.9 any info or help, need it for the hills.
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10-20-2019, 11:56 PM
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#3
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Skoolie
Join Date: Jan 2016
Location: Foot of the siskiyou mountains Oregon.
Posts: 222
Year: 1989
Coachwork: Thomas / international
Chassis: International
Engine: Dt 360/ spicer 5 speed
Rated Cap: 42
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I don't know what transmition you have but I would imagine an exhaust brake isn't going to do a lot for you unless you are.running either a manual transmission or an automatic with lockup. The drive shaft brake.would be a different story.
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10-21-2019, 07:03 AM
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#4
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Bus Crazy
Join Date: Oct 2017
Location: Virginia
Posts: 2,426
Year: 1971
Coachwork: Wayne
Chassis: International Loadstar 1600
Engine: 6v-53n detroit
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I do not know of a "Jake brake" available for the 5.9. Exhaust brakes are available, are you specifically looking for a "Jake brake" ?
In time I am looking at adding the Telma retarder for my bus.
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10-21-2019, 12:10 PM
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#5
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,404
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by Ronnie
I do not know of a "Jake brake" available for the 5.9. Exhaust brakes are available, are you specifically looking for a "Jake brake" ?
In time I am looking at adding the Telma retarder for my bus.
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Have you gotten any idea of the cost?
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10-21-2019, 12:46 PM
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#6
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Bus Crazy
Join Date: Oct 2017
Location: Virginia
Posts: 2,426
Year: 1971
Coachwork: Wayne
Chassis: International Loadstar 1600
Engine: 6v-53n detroit
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I have not yet looked into cost, am hoping to find a used one in a junkyard, but really have not pursued it much. Seems I saw something about new ones being a few thousand or more. Don't quote me for sure on that.
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10-21-2019, 01:11 PM
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#8
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Skoolie
Join Date: Jan 2016
Location: Foot of the siskiyou mountains Oregon.
Posts: 222
Year: 1989
Coachwork: Thomas / international
Chassis: International
Engine: Dt 360/ spicer 5 speed
Rated Cap: 42
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Look in the Dodge aftermarket world. They make a Jacobs brand exhaust brake but can't say it's what you need. Price is probly close to $1500 and up. Wether or not your transmition locks up will dictate if an exhaust brake will even help you. Exhaust brakes are different than Jake brakes. Exhaust brakes just close a valve behind the turbo to create back pressure. The Jake brake alters valve timing mechanically to increase back pressure and ultimately resistance at the flywheel. They don't make a jake brake for the 5.9 that I'm aware of.
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10-21-2019, 05:50 PM
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#9
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Mini-Skoolie
Join Date: Mar 2016
Location: MIAMI, FLA USA
Posts: 19
Year: 1999
Coachwork: 34 foot blue bird
Engine: CUMMINS 5. 9
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jake brake
thanks to all for the info. the cost in definitely out of my price range
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10-22-2019, 12:23 AM
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#10
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Bus Crazy
Join Date: Jun 2016
Location: Orange County, CA
Posts: 1,445
Year: 1990
Coachwork: Crown, integral. (With 2kW of tiltable solar)
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
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There are no currently-available school bus engines that have the option of a true Jake brake (the compression-release brake that Class 8 trucks use). Only Crown and Gillig offered engines with Jakes. Exhaust-restrictors won't slow you down much, and can cause other problems along the way. Telmas are the way to go for serious mountain driving, and I believe that all school buses in CO must have Telmas. If I could get a Focal Telma for a decent price I would consider adding it, even with a perfectly good Jake brake on my bus now.
John
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10-22-2019, 07:18 AM
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#11
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,829
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by Iceni John
There are no currently-available school bus engines that have the option of a true Jake brake (the compression-release brake that Class 8 trucks use). Only Crown and Gillig offered engines with Jakes. Exhaust-restrictors won't slow you down much, and can cause other problems along the way. Telmas are the way to go for serious mountain driving, and I believe that all school buses in CO must have Telmas. If I could get a Focal Telma for a decent price I would consider adding it, even with a perfectly good Jake brake on my bus now.
John
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CO has backed off on the Telmas and now they're only spec'd on mountain buses. Still plenty of those, but not every CO bus has one. I had a 98 shorty with a 545 and no telma and it was from Aurora.
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10-22-2019, 07:28 AM
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#12
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Bus Crazy
Join Date: Oct 2017
Location: Virginia
Posts: 2,426
Year: 1971
Coachwork: Wayne
Chassis: International Loadstar 1600
Engine: 6v-53n detroit
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Quote:
Originally Posted by Sleddgracer
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This is a much better price then ebay for us shows. Wonder what import costs would be. I know some time ago the exchange rate was a good bit in our favor, has that evened out?
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10-22-2019, 08:01 AM
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#13
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Bus Crazy
Join Date: Nov 2018
Location: south east BC, close to the Canadian/US border
Posts: 2,265
Year: 1975
Coachwork: Chevy
Chassis: 8 window
Engine: 454 LS7
Rated Cap: 24,500
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Quote:
Originally Posted by Ronnie
This is a much better price then ebay for us shows. Wonder what import costs would be. I know some time ago the exchange rate was a good bit in our favor, has that evened out?
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it seems to be staying at about 25% - one CAD$ = $.75 US +/-
1 Canadian Dollar equals
0.76 United States Dollar
Oct. 22, 12:00 p.m. UTC · Disclaimer
1
0.76
1D
5D
1 M
1 Y
5 Y
Max
0.75 Sun, 22 Sep
0.740.760.78
Oct. 2Oct. 13
Data provided by Morningstar for Currency and Coinbase for Cryptocurrency
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10-22-2019, 11:27 AM
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#14
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Skoolie
Join Date: Jan 2016
Location: Foot of the siskiyou mountains Oregon.
Posts: 222
Year: 1989
Coachwork: Thomas / international
Chassis: International
Engine: Dt 360/ spicer 5 speed
Rated Cap: 42
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Quote:
Originally Posted by Iceni John
There are no currently-available school bus engines that have the option of a true Jake brake (the compression-release brake that Class 8 trucks use). Only Crown and Gillig offered engines with Jakes. Exhaust-restrictors won't slow you down much, and can cause other problems along the way. Telmas are the way to go for serious mountain driving, and I believe that all school buses in CO must have Telmas. If I could get a Focal Telma for a decent price I would consider adding it, even with a perfectly good Jake brake on my bus now.
John
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Detroit 60 series,though probly hard to find in a "school" bus
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10-22-2019, 11:30 AM
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#15
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,829
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by SolomonEagle
Detroit 60 series,though probly hard to find in a "school" bus
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Aye, pal, they're probably pretty rare!
Far as I know there were never any series 60's in school buses. That's a loss. Great engines.
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