Vac boost fuel pump

[ThomasN]

I bought a vac boost fuel pump for my 53 vic and now need to know what vac lines go where?
Thanks in advance

 

[petehoovie]

The windshield wiper vacuum line goes to the fuel pump vacuum port....

 

[ThomasN]

Is the other port just a breather, no line to it, or does it go to carb?
Thanks

 

[petehoovie]

I think it goes to the vacuum port at the base of the carb....

 

[ThomasN]

That seems like they would be working against each other tho,
Thanks
T

 

[petehoovie]

I'm not sure, but I think that one of the ports into the fuel pump acts as a 'plug' for the vacuum port under the carb....That port would have to be plugged if not used....

 

[ThomasN]

Thanks Pete, I have to confess I haven't read the instructions yet, just sitting here on my FA wondering how it would all work. But, I bet there are no instructions for vac hook up.
Thanks

 

[flatheadmurre]

Its a booster and the vacuum from the manifold can go right through it for higher flow when available.
Its like adding a electrical fuelpump to a mechanical they work togetter.

 

[petehoovie]

There are two smaller tube fittings on the top portion of fuel pump(vacuum pump). You should be able to find an arrow to indicate which tube is in and out. 'In' goes to the intake manifold/carb, the 'Out' goes to the wipers.

 

[flatheadmurre]

Just operate the pump by hand the port that sucks goes to wiper.
The other to manifold.

 

[ThomasN]

Ok thanks guys,
T

 

[ThomasN]

That seems like they would be working against each other tho,
Thanks
T

ok, got it installed yesterday. Great vacuum, the other side actually blows air so I guess if I hook it to carb vac it would be like a boost for that vac??

 

[flatheadmurre]

Connect the outlet to where the viper used to hook up earlier.
Its all set by how much the wipers use and not the maximum flow of the pump in the end !!

 

[ThomasN]

all good info