Vacuum port on intake manifold

[jasonw]

I managed to break a port off my intake manifold vacuum fitting.
I have an 86 truck with an automatic transmission.

The fitting has a port for the main vacuum line and a port on the top for the automatic transmission, and another port that was unused.

I have tried to find this part everywhere and the best I can find is a corvette site that shows a similar part for around $25 before shipping.

Does anyone know where I can find this part?

TIA
Jason

[chengny]

Go to the hardware store and get a pipe to hose barb adapter.

Specifically, a brass 3/8" male NPT to 1/4" hose barb.

The 3/8 NPT screws into the manifold and the end of the modulator tubing fits into the ID of the hose barb. Use a short section of rubber hose to connect the OD of the hose barb to the ridge on the actuating line.

[88Jimmy4x4]

go to the help section of any autozone or auto parts store, they sell them in many configurations of ports and threads

[mrhino]

Are you looking for a ported vacuum switch?

OReilly's or Advance should have them. If you can find anyone at those places that knows $hit from Shinola

[jasonw]

No..not the vacuum switch.

This part is on the back half of the intake between the carb and the distributor. It has a line that runs to the transmission and another to the main vacuum hose.

I am likely to go to Lowes and use brass fittings to build a new one that will work.

[chengny]

[jasonw]

That is the piece...except mine has a 1/4" or so port on the side that goes to the main vacuum line and another 1/8" port that I had plugged off.

I broke the small port off trying to get it out of the intake.

It looks like it is aluminum and mine was already somewhat malformed and bent so I decided to replace it instead of trying to fix it.

I didn't know they may not be a common part.

[jasonw]

http://www.ecklerscorvette.com/corve...Product_Viewed
This is the closest replacement part to the original I can find. The price of these parts is a little high.

[Pyrotechnic]

Originally Posted by chengny

Go to the hardware store and get a pipe to hose barb adapter.

Specifically, a brass 3/8" male NPT to 1/4" hose barb.

The 3/8 NPT screws into the manifold and the end of the modulator tubing fits into the ID of the hose barb. Use a short section of rubber hose to connect the OD of the hose barb to the ridge on the actuating line.

This ^^^^. While it may not look the same, the function will be exactly the same. You can get this at Lowes or Home Depot in the plumbing section. It's just a few dollars.

http://www.grainger.com/Grainger/Hos...FN2?Pid=search

That's what you need.

[i8tokyo]

Try a pick and pull... Fittings here from one would be $3.00. Probably cost you more in gas to drive there but most all Carb'd/Auto Trans chevy's will have the one you need.

[geezer#99]

Originally Posted by i8tokyo

Try a pick and pull... Fittings here from one would be $3.00. Probably cost you more in gas to drive there but most all Carb'd/Auto Trans chevy's will have the one you need.

X2.
Look on Ford motors too!
Ford's used some amazing vacuum trees.