Question

[airforce guy]

Has anyone ever heard of a Vacuum tank? If so what is its purpose and where would it be located on a 55 Buick Super??? The reason I asked is because I bought a 4 pc engine line from inline tube.com, I recieved only three pieces and they do not look like the 4 vacuum lines that I currently use for vacuum... mind you they may not be original to the car any how. Thanks:beers2:

[Steve Craig]

Vacuum tanks were used to retain a vacuum after the engine was shut-off.
My '71 has AC & has a round plastic tank on the firewall.
Vacuum source is from the carb., supply is to the heater/AC controls.
Other brands/models may have used it for trunk opener, door locks etc..

[Aussie V8]

Your '55 shouldn't have a vacuum tank. The Super should have a 2 stage fuel pump or should I say independant sections with 2 diaphrams. One is used to pump the fuel itself and the other to assist with increasing / stabilising vacuum for the windscreen wipers. One steel line goes from the inlet manifold to pump and another from pump to rubber vacuum lines on the firewall.

Ken. 1954 Roadmaster

[322bnh]

If your Super has power brakes there is a vacuum tank for the power brakes located inside the drivers side frame rale towards the back.
Willie