55 6-226 vacuum lines

RoadRunner

Bigger Hammer
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#21
How do you plug the vacuum side of the pump if using electric wipers ? Just run a loop from one side of pump to other ?
John,

If you have a '55, you likely have the 2 bbl 2204s carburetor.

The best/cleanest thing to do is to remove the (vacuum) line that runs from the vacuum port on the throttle body, located just below the carburetor on the back (firewall) side, to the vacuum wiper assist on the fuel pump and then plug the (now open) port on the throttle body.

It's important that you plug the open port on the throttle body, otherwise you will have a significant vacuum leak and the motor will not run.

As for plugging as the vacuum assist ports on the fuel pump, you can just leave them open or, as you suggest - run a loop from one side to the other.

If you have the single barrel 2467 carter carb, use the same procedure outlined above - although the location of the vacuum port is, I believe, on the intake manifold.

Hope this helps,

Ray
 

Igotthewillys

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#22
John,

If you have a '55, you likely have the 2 bbl 2204s carburetor.

The best/cleanest thing to do is to remove the (vacuum) line that runs from the vacuum port on the throttle body, located just below the carburetor on the back (firewall) side, to the vacuum wiper assist on the fuel pump and then plug the (now open) port on the throttle body.

It's important that you plug the open port on the throttle body, otherwise you will have a significant vacuum leak and the motor will not run.

As for plugging as the vacuum assist ports on the fuel pump, you can just leave them open or, as you suggest - run a loop from one side to the other.

If you have the single barrel 2467 carter carb, use the same procedure outlined above - although the location of the vacuum port is, I believe, on the intake manifold.

Hope this helps,

Ray
I have a single barrel carb. Doesn't the vacuum line on the carb go to the distributor for vacuum advance ? There is a line off carb and intake manifold
 

RoadRunner

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#23
I have a single barrel carb. Doesn't the vacuum line on the carb go to the distributor for vacuum advance ? There is a line off carb and intake manifold

Yes, the vacuum line on your single barrel carburetor goes to the vacuum advance on the distributor.
It is the vacuum line on the intake manifold that goes to the vacuum wiper motor or first to the vacuum assist on the fuel pump and then to the vacuum wiper motor - this is the vacuum line you want to disconnect, then plug the port/hole in the manifold.
 

Pointy Grille

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#24
If I'm no longer using the vacuum booster part of the fuel pump, does it matter where one closes off the port? Before (at the manifold) or after the booster?
 

RoadRunner

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#25
If I'm no longer using the vacuum booster part of the fuel pump, does it matter where one closes off the port? Before (at the manifold) or after the booster?
Bob,

It doesn't matter where you close off the vacuum line.

That said, I recommend you plug the port at the intake manifold - because all of the remaining connections are potential vacuum leaks, if not now, possibly in the future.

I also recommend, after plugging the intake manifold port, that you remove all of the unneeded vacuum lines to/from the vacuum booster and to the vacuum wiper motor - it simplifies and 'cleans up' the engine compartment.

Ray
 
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