Can anyone tell me about this BD Retarder?

[saburai]

Hi Gang!
This is on a 90 F250 that I'm considering buying. It's not close, so I've not seen it yet. But here's a picture. How does it function?

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[chillman88]

I would assume it's an exhaust brake but thats just a guess.

 

[79jasper]

Yep.

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[saburai]

Thanks guys!
I thought it was pretty obvious that's what it was
I was more asking about the specifics of how this one works...

 

[79jasper]

Well, it's a flap in the exhaust that closes, using backpressure to slow it down.
Typically locks the torque converter as well, otherwise it would be useless.


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[saburai]

Well, it's a flap in the exhaust that closes, using backpressure to slow it down.
Typically locks the torque converter as well, otherwise it would be useless.


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Yes, I understand how an exhaust brake works. What I'm wondering are things like the specific placement of the valve for this model and if it does indeed lock up the converter. I searched the internet and couldn't find anything for this specific BD model. I'm wondering if for my application it's more trouble than it's worth. For instance, if the valve is in the downpipe, would I have a problem with the banks downpipe? Excetera, excetera. Thanks for the help...

 

[chillman88]

https://www.jegs.com/InstallationInstructions/100/151/151-1033115.pdf

This might be the one?

 

[nostrokes]

From what I've experienced with any of these types they work good the first few times then just become another useless part on the exhaust. They get covered in soot and start sticking open and are inoperable. Waste of money and effort in my mind but that's just what I've seen.

It should be mounted after the down pipe, so really all it's doing is putting back pressure on the turbo. I would think that's not a good idea on a turbo, (blown seals over temp ect..) but there are millions of them out there so maybe not? If I were buying a truck with one I'd pull it and pitch it right away..

 

[saburai]

Thanks Gents!
I tow a heavy trailer, so if it worked well it would be a nice addition. I don't think it would hurt the turbo since it's only activated during no throttle descents. Of course it would also have to lock up the converter... I guess if I get the truck I'll see.

 

[79jasper]

Back pressure on the turbo is back pressure on the engine. Really no difference.

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[Hagan]

From what I've experienced with any of these types they work good the first few times then just become another useless part on the exhaust. They get covered in soot and start sticking open and are inoperable. Waste of money and effort in my mind but that's just what I've seen.

It should be mounted after the down pipe, so really all it's doing is putting back pressure on the turbo. I would think that's not a good idea on a turbo, (blown seals over temp ect..) but there are millions of them out there so maybe not? If I were buying a truck with one I'd pull it and pitch it right away..

So much fail in your post.


I've had 4 exhaust brakes in my Cummins powered trucks and they are awesome. 2 have been BD, 1 d-celerator by US gear, and another was a Cummins unit. All have been flawless and have helped out tremendously towing. I wouldn't just throw it in the trash.

 

[nostrokes]

So much fail in your post.


I've had 4 exhaust brakes in my Cummins powered trucks and they are awesome. 2 have been BD, 1 d-celerator by US gear, and another was a Cummins unit. All have been flawless and have helped out tremendously towing. I wouldn't just throw it in the trash.

So how is real life experience a fail? I mearly stated what I have experienced and gave my opinion. Not everyone will have the same opinoin and experiance and I respect that, but I'm not going to tell them that they failed.

 

[Hagan]

So how is real life experience a fail? I mearly stated what I have experienced and gave my opinion. Not everyone will have the same opinoin and experiance and I respect that, but I'm not going to tell them that they failed.

We all have opinions and I have mine. Clearly never used one or your opinion about exhaust brakes would be different.

 

[Double-S-Diesel]

thousand upon thousand of people have been using the ebv valve on the psd as a exhaust brake since 1994

 

[nostrokes]

We all have opinions and I have mine. Clearly never used one or your opinion about exhaust brakes would be different.

Everything from otr semis, medium duty trucks, 3000 gallon water tender (tanker to y'all East of the Mississippi River) type 6, type 5, type 4 wildland fire engine, structure fire engines, rescue units, haz-mat response trucks, and finally pickup trucks so no I've never used one.....

Love them on the big trucks saved my bacon a few times coming down the hills after a fire. They were able to hold back the load and keep me off the brakes.

As for the little pickup trucks well... The 7 or 8 I drove, multiple years not just around the block, with them installed flip the switch to let it do it's job and nothing... No slowing down, no converter lock up. Nothing nada zip. 4 of those were brand new, installed by proffesionals...

I respect your opinion and you obviously think highly of them. As for me with my EXPERIENCE, as I stated in my first post, my opinion still stands that they are junk.