Re: Jake Brake

Posted by KEB on November 06, 2006 at 20:07:29 from (72.19.170.5):

In Reply to: Re: Jake Brake posted by Pooh Bear on November 06, 2006 at 19:36:35:

Let me add a little more info. An "exhaust brake" is what the Shadetree mechanic installed, NOT a Jake Brake. As Tooly noted, a Jake Brake (a brand name, by the way) works by opening the exhaust valve at the top of the compression stroke so that the energy used to compress the air in the cylinder is released into the exhaust rather than pushing the piston back down. Essentially turns the engine into a giant air compressor...

A exhaust brake works by increasing exhaust back pressure. Some smaller diesels, such as those used in pickups, don't have enough clearance between the exhaust valve & piston to allow the valve to be opened at the top of the compression stroke. I'd love to have a true engine brake on my Ford 7.3 diesel coming down some of the grades here in Colorado with our 5th wheel travel trailer on behind the truck.

Keith

Replies:

• Re: Jake Brake Jon Hagen 20:52:20 11/06/06 (0)

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