Looking for 73 Trans Am Super Duty pics

[Steve_Hoog]

That looked fuel line related, and for it to mount on the timing cover like that with the angle it makes me wonder. Not too many aftermarket companies would engineer that funny angle.

[Charley Lillard]

I took it off and cleaned it. It is not a oil change thingy. The large cup section has a freeze type plug in it Here are better pics.

[Charley Lillard]

other side

[budnate]

Charley, that is a reverse modulator for the vacuum assisted muffler bearing, only installed on Washington cars due to some new law about keeping the state green, want to sell the pos???

Bud.

[JoeC]

could that be what's left of a block heater that had heater hose connected to it? They had a heat coil and 110 cord to plug into the house.

[Charley Lillard]

No.. It is complete the way you see it. The fuel lines run right by it so I'm thinking maybe the fuel hose or fuel return hose was supposed to hook up to it. Maybe some type of accumulator..The bolt holding it looked to be factory. Wierd.

[Steve_Hoog]

Charley

As you can see, Bud has been looking at his avatar just a little too long!!!

I don't know what it is, but I'm curious. I will ask our shop foreman first thing tomorrow, he's been working on the Pontiacs since early 70's. If it's factory, hopefully he'll know.

Steve

[bwag]

Charley That part is an accumulator The V-8s had a gasline knock that sounded like an engine knock This was installed at assembly line to cure the problem The 73 Pontiac manual shows the gas hoses routed thru the accumulator

[Charley Lillard]

Thanks....I learn something new everyday...Problem is I forget even more every day.

[bwag]

Charley I bypassed some accums because of gas leaks,so i wouldnt hook it back up. I spent a few years at a Pontiac dealership.