Engine Exhaust Back Pressure Brake
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Engine Exhaust Back Pressure Brake
Can any one give me any info on the do it your self back pressure brake that uses the engine exhaust back pressure valve to act as a pac brake. FORD-DIESEL.com has a how to on this but I would like to have a second opinion, you are supposed to be able to make this mod for just a few bucks.Is this safe?
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Engine Exhaust Back Pressure Brake
I would get an engineered exhaust brake. They have been tested over and over before they hit the market. If they destroy your engine, at least you have someone else to fall back on. How do you know how much backpressure the homemade brake is putting on the engine? Too much backpressure can cause valvetrain damage among other things.
Les
Les
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Engine Exhaust Back Pressure Brake
bobby1,
powerstroker250 touched on a very important issue for all of us with PSD's. The valve train in our engines uses hydraulic roller lifters. These lifters do not take kindly to exhaust back pressure and there is a real possibility of floating the valves.
This is not just my opinion. For more info, go to the source itself -- jakebrake.com. They have a very good explanation in their FAQ section explaining why they don't make an exhaust brake for the Ford PSD's.
I was also interested in making an exhaust brake until I read about the risks.
Good luck
powerstroker250 touched on a very important issue for all of us with PSD's. The valve train in our engines uses hydraulic roller lifters. These lifters do not take kindly to exhaust back pressure and there is a real possibility of floating the valves.
This is not just my opinion. For more info, go to the source itself -- jakebrake.com. They have a very good explanation in their FAQ section explaining why they don't make an exhaust brake for the Ford PSD's.
I was also interested in making an exhaust brake until I read about the risks.
Good luck
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Joined: Jul 2002
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From: Fairview U.S.A
Engine Exhaust Back Pressure Brake
You say they don't make a jakebrake for a PSD , well i just bought one 2 weeks ago and it works great , no probs at all and i use it everyday when i pull my backhoe and bulldozer with it .. The brake is used alot , cause of so many hills around here .,..
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From: Western Colorado USA
Engine Exhaust Back Pressure Brake
A true "Jake Brake" turns your engine into a air compressor and is made by a company called Jacobs. That's why you hear the pop pop pop when it's used, the noise is the exhaust valve releasing the pressure. What you have is a exhaust brake which works exactly like having a potatoe in the tailpipe by building up excess back pressure.
It makes more of a whooshing sound when used. If you were running a staight pipe it would scream almost like a jet engine.
It makes more of a whooshing sound when used. If you were running a staight pipe it would scream almost like a jet engine.
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Joined: Apr 2002
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From: Reno USA
Engine Exhaust Back Pressure Brake
I have been using a BD exhaust brake for the last two years on my F-350 PSD. I too was cautious regarding the possibility of Valve Float and questioned the manufacture regarding this matter. I was told that in order to achive Valve Float on a 2001 PSD the back pressure must climb to approx 30 to 31 lbs. The BD (Big Daddy) brake is designed to run at 12 to 15 lbs and a max of 18 lbs. Not even close to Valve float pressure. Plus BD stands behind their product and has an excellent reputation. I have had no problems other than having to install a transmission lock to keep the transmission pressure up when the torque converter is disengaged. I use the brake every single day and tow a 13,000 5th wheel. It works GREAT! I have 37,000 miles on the truck and have better than 60% left on my original brake pads. It's nice to be able to tow my 5th wheel down a 7-8% grade at 55 without having to apply the truck brakes. 
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