Exhaust Brake?

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cbalme
Slave Cylinder
Posts: 437
Joined: Fri Apr 14, 2017 2:05 pm
Location: Cobble Hill, Vancouver Island

Exhaust Brake?

#1 Post by cbalme » Tue Dec 19, 2017 6:25 pm

I was cleaning out my spares area and came across this Gooseneck Exhaust. When you rotate it there seems to be something moving inside. Maybe a primitive exhaust brake? There are teeth on it for a ratchet or something.

https://i.imgur.com/5BNA2lcl.jpg

Would that be something installed by the previous owner or factory?

Tony4921
Out of Africa
Posts: 416
Joined: Sun Jan 11, 2015 7:34 pm
Location: Duncan,BC

Re: Exhaust Brake?

#2 Post by Tony4921 » Tue Dec 19, 2017 7:29 pm

I think its a deflector to heat the intake on low flow, but when the flow gets high it opens fully to not restrict the exhaust flow.

The_Anachronist

Re: Exhaust Brake?

#3 Post by The_Anachronist » Tue Dec 19, 2017 8:43 pm

Yes, it’s an intake manifold heater. Helps with cold running. When things heat up, it’s supposed to close and stop diverting the hot exhaust around the intake. I’ve never seen one in person, but it seems like one of those good ideas that probably doesn’t work all that well (especially after 55+ years).

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