1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

5.9 commpression brake coming soon

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Old Dec 30, 2012 | 11:14 PM
  #16  
1972RedNeck's Avatar
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From: Townsend, MT
Originally Posted by 1972RedNeck
Who makes it? I searched but couldn't find anything.
Nobody?
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Old Dec 31, 2012 | 02:06 AM
  #17  
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From: Fort Riley, kansas
Oh man that is nice. I want one.
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Old Dec 31, 2012 | 09:06 AM
  #18  
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From: Hamilton,MO
Originally Posted by 1972RedNeck
You could modify a valve cover.
There are industrial apps for the 6BT and 4BT that use a valve cover w/a screw-in cap for oil fill.
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Old Dec 31, 2012 | 09:15 PM
  #19  
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From: Townsend, MT
If you watch the video the front valve cover has an oil fill port.
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Old Jan 1, 2013 | 12:27 AM
  #20  
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Here's the oil-fill valve cover.

http://www.puredieselpower.com/catal...p-p-28634.html
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Old Jan 1, 2013 | 01:34 PM
  #21  
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From: Townsend, MT
I think you have to use their valve covers.
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Old Jan 1, 2013 | 02:26 PM
  #22  
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From: McCook, Nebraska
Looks to me like it could use compressed air to push down on the top of the exhaust valve stem, distributed by the puck on the front of the timing cover. So yes, it would be part of the one-piece valve cover.

I like it because it appears the only electronics would be to turn it on and off, and the actual workings is all mechanical/pneumatic.
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Old Jan 1, 2013 | 02:47 PM
  #23  
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Please let us know when they're ready. Gotta have one!
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Old Jan 1, 2013 | 04:39 PM
  #24  
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Who are these guys? Where can we find more info.
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Old Jan 1, 2013 | 09:59 PM
  #25  
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From: NW IL
Originally Posted by scot pa
I see it must somehow distribute air pressure to open the exhaust brake by using the cam gear.
That isn't the cam gear. It's the one for the fuel injection pump.
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Old Jan 1, 2013 | 10:55 PM
  #26  
NE frmhnd's Avatar
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From: McCook, Nebraska
Originally Posted by bmoeller
That isn't the cam gear. It's the one for the fuel injection pump.
Does it turn the same speed as the cam gear? Because if it did, it would translate easily- two turns of the gear would put it on each of the exhaust valves once.
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Old Jan 1, 2013 | 10:59 PM
  #27  
1972RedNeck's Avatar
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From: Townsend, MT
Originally Posted by scot pa
Looks to me like it could use compressed air to push down on the top of the exhaust valve stem, distributed by the puck on the front of the timing cover. So yes, it would be part of the one-piece valve cover.

I like it because it appears the only electronics would be to turn it on and off, and the actual workings is all mechanical/pneumatic.
I have read a bit about the setup on other forums. It uses oil to activate the plungers. The design shown in the video got scrapped. They have a new drive now. They won't let out anymore info for patenting reasons.
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Old Jan 1, 2013 | 11:00 PM
  #28  
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From: MN
Originally Posted by scot pa
Does it turn the same speed as the cam gear? Because if it did, it would translate easily- two turns of the gear would put it on each of the exhaust valves once.
I believe so, they are the same size(cam and pump gear, which is twice the size of the crank gear).
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Old Jan 2, 2013 | 12:30 AM
  #29  
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From: Palmyra, Nebraska
Here, learn a little bit about what you're wondering about before you look like an idiot commenting on something you're clueless about:

http://www.tecbrake.net/theory.htm

http://www.youtube.com/watch?v=7FSkNSOeTWM

Mark.
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Old Jan 2, 2013 | 08:41 PM
  #30  
NE frmhnd's Avatar
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From: McCook, Nebraska
I was making an observation about how they drive it. Two turns of the crank makes for two turns of the cam and pump gear, so if it is driven off one of those, it would activate each cylinder exactly once.

Problem with the tecbrake link is these engines don't have unit injectors.
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