Exhaust Brake

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Sep 13, 2004 | 07:37 PM

Goemons74

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Exhaust Brake

Hi
I was woundering if anyone has ever put an exhaust brake on a 300-6 before and if so did it work?

Sep 13, 2004 | 08:02 PM

srercrcr

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huh.......?

Sep 13, 2004 | 08:14 PM

benwantland

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From: Iowa

Have you ever seen an exhaust brake on a gas engine? They are not used, because closing the throttle blade(s) serves basically the same purpose (restricting infinite airflow through the engine)

Sep 13, 2004 | 08:38 PM

Phrogman46

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From: Chicago

You could put one on and when you closed and then reopened it there would be a huge back fire and it might even pop thrue the carb or TB. It's a Diesel engine thing only.

Sep 14, 2004 | 07:44 AM

gatesj

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From: Remsen, NY

I think what you're talking about is a Jacobsen engine brake or "Jake brake". Not likely on your gas engine.

Sep 14, 2004 | 07:23 PM

kedwinh

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From: Casa Grande

"They are not used, because closing the throttle blade(s) serves basically the same purpose (restricting infinite airflow through the engine)"

Not really true. An exhaust brake works by increasing exhaust back pressure not by cutting intake airflow.

Keith

Sep 14, 2004 | 08:08 PM

benwantland

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From: Iowa

Quote:

Originally Posted by kedwinh

I know, I was simplifying things just a bit....

And gatesj, an exhaust brake isn't the same as a jake brake.
Jake brake - opens exhaust valves at the TDC on compressoin stroke - usually used on med and heavy duty diesels

Exhaust brake - butterfly valve in the exhaust system - usually used on lighter duty apps

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Sep 14, 2004 | 11:20 PM

Katmandu

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Joined: May 2002

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From: Wetumpka, Alabama

Quote:

Originally Posted by Goemons74

Hi
I was woundering if anyone has ever put an exhaust brake on a 300-6 before and if so did it work?

Try it and report back to us!

Sep 15, 2004 | 06:25 AM

#10

gatesj

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From: Remsen, NY

Quote:

Originally Posted by benwantland

You're right. I was thinking he was talking about a jake brake and I was trying to figure out how he was going to get the valves open on compression....

I would have to wonder if trying to fabricate some sort of homemade exhaust brake wouldn't blow manifold gaskets? How much pressure would build up?

Sep 15, 2004 | 03:09 PM

#11

50_Buck_Work_Truck

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Oh, Jebus! Talk about a Rube Goldberg mechanism! It'll be spitting and pooting back up thru the intake like a flat lobe on the cam! Probably FUBAR the carb-a-tooter too! It'll make for some interesting horse-chestnut-in-the-microwave popping noises under the air cleaner lid, however you slice it! Maybe upgrading the brakes on the vehicle might be a better solution!