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Author Topic: Blue ox brake  (Read 1223 times)
chazwood
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« on: January 10, 2013, 01:00:09 PM »

Anyone have a blue ox exhaust brake hooked to their bus? I have one that's not hooked up and MCI tech. is pretty clueless as to how it came on the bus.  I would like to get it back to original But mine is not hooked up to an air supply. Don't know what line they used.
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1983 Eagle Bus Model 10
6V92
Thekempters.com
busguy01
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« Reply #1 on: January 10, 2013, 04:02:05 PM »

Blue Ox never made an exhaust brake. Lots of other brakes but no exhaust. A picture would help!
JimH
Past President - Blue Ox
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Started with nothing - still have most of it left!
1963 Eagle 01 with Detroit 60 series done (Gone-sold!)
MCI EL3 in progress. raised roof & Slides
2009 Revolution 42 Sticks and staple
Summer - Yankton, South Dakota
Winter- Port St Lucie, Florida
opus
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« Reply #2 on: January 10, 2013, 07:00:57 PM »

Hmmmm.....

http://www.brakesystemsinc.com/blueox.html
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1995 BB All-American - A Transformation.
TomC
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« Reply #3 on: January 10, 2013, 10:22:50 PM »

The operation is much like a Jake Brake. Have a master on/off switch on the dash with a micro switch on the gas pedal to have it activated only on no gas position, and another micro switch that deactivates the exhaust brake when you push on the clutch. Simple-just need to have an air supply and a normally closed 12v (or 24v if that's what you have) air solenoid with exhaust port to operate the exhaust brake. Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
busguy01
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« Reply #4 on: January 11, 2013, 05:01:58 AM »

Not the same company that makes the blue ox tow bars and brake systems. The parent company of Blue Ox Tow products is Automatic Equipment MFG dba Blue Ox. 2 different companies. The Blue Ox of tow bar fame is the one I spoke of. Sorry for the misunderstanding.
JimH
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Started with nothing - still have most of it left!
1963 Eagle 01 with Detroit 60 series done (Gone-sold!)
MCI EL3 in progress. raised roof & Slides
2009 Revolution 42 Sticks and staple
Summer - Yankton, South Dakota
Winter- Port St Lucie, Florida
chazwood
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« Reply #5 on: January 11, 2013, 08:28:07 AM »

Yes Tom,
I was hoping to find out exactly where the air came from.


P.s. Thank you bus guy:)
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1983 Eagle Bus Model 10
6V92
Thekempters.com
TomC
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« Reply #6 on: January 11, 2013, 12:20:41 PM »

Sorry, can't help you there. There are very few that use exhaust brakes-popular in Europe though. Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
Dave5Cs
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1979 MCI MC5Cs 6V-71 HT-740 Allison, Roseville, CA




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« Reply #7 on: January 12, 2013, 12:10:01 PM »

Says on the Blue -Ox site they are for 4 stoke only? just noticed that.
Does that matter on a 2 stroke or can it even be used?

Dave5Cs
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TomC
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« Reply #8 on: January 12, 2013, 11:16:37 PM »

Never, NEVER use an exhaust brake with a 2 stroke. An exhaust brake works by plugging up the exhaust pipe with a butterfly valve with bypass to let some exhaust through. This works well with a 4 stroke in that it just makes it harder for the piston to push out the exhaust-hence the braking effect. On a 2 stroke-yes you would also get the braking effect, but with the over lapping of the intake and exhaust cycles, and the fact that the piston doesn't actually push the exhaust out of the cylinder, the blower is what pushes both the fresh air in and helps the exhaust also leave the combustion chamber. Hence, with a 2 stroke, all the back pressure from the exhaust brake would be absorbed or taken by the blower-most likely blowing it right off the engine. Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
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