Electric vacuum pumps?

I have a friend who needs an electric vacuum pump on his 46 Ford. He's running a big BBC and needs to up his vacuum for his brake booster.

I thought I'd read somewhere that they used to be on like mid-eighties Chevy Cavilers and Volvos too. Anyone running one or know anything about them?

Thanks, Vance

 

Ever looked into a vacuum pump off a 6.5 chevy turbo diesel? Its a belt driven unit. I have used them a few times before..

 

I've never heard of those. That might work. I know he's running his water pump off an electric motor ala bracket racer style.

Vance

 

I was looking for the same thing a year ago (small GM cars), and the prices scared me off. The parts stores were all over $200 and the junk yards wanted a lot of money too. It was so bad I started looking at used motel refrigerators and maybe running a 115 volt inverter (smile). Alas, sold the car, so the problem went away.

 

Does he have P/S? If so you can also look into a hydro-boost unit. Like used on 1-tons and up.

 

eighties cadillac sevilles and their gm cousins would be a good source.
lots of audis should have em too.

 

Go find a salvage yard for bigger trucks. I used to drive an 2.5 ton International DT466, 1995 or so, that used one. It just mounts under the dash and plumbs into the booster.

 

No power steering.

 

The Citation HO "X11" performance version had a vacuum pump in the drivers side wheel well area. Everyday Citations did not.

 

These cars used an electric vacuum pump.

Buick
82 Skyhawk-J
82- 85 Skylark-X

Pontiac
85-86 6000
82 J2000
82-84 Phoenix-X

Chevrolet
84-86 Celebrity-A
82 Caprice-B
82 Cavalier-J
82-85 Citation-X

Cadillac
82 Cimmaron

Oldsmobile
86 Cierra-A
82 Firenza-J
82-84 Omega-X

You'll find these pumps in front of the driver's side front fender well. Look for the vacuum lines running along the fender from the brake booster. Get the electrical plug that goes to the pump and the rubber mounting plate.

The pump is also available new from GM. Various GM part numbers for vacuum pumps are 22062562, 22034995, 24505066, 10090521.

Power connections are easy. Black is ground. Red wire goes to a hot source. Black with white stripe goes to switched power. Either the accessory side of the ignition switch or to a manual switch so that the pump can be run during cool down in the pits. The pump is powered via the A connection, but will only run if it receives power from the ignition switch on the B connection.

Connection A (Red wire) battery positive, 12 volts+ through a fuse.
Connection B (Black with white stripe) ignition positive, 12 volts+
Connection C (plugged) not used (not used in factory system either)
Connection D (Black wire) ground, 12 volts-

 

I'm running one from MP Brakes but it is not cheap. If you get one don't mount it inside the car the noise will drive you nuts. I added a vacuum reservoir and that seems to help without the pump running. I run about 13 inches of vacuum at idle most boosters need 18 inches to operate effectively. If I had to do it again I would go with manual brakes.

 

SteveM - Thanks! That's gotta be about the most complete list ever ***embled.

Vance

 

Summit and Jegs both sell electric vacuum pump kits. I've used teh Summit version. I found it noisy and overly sensitive. Even using both a vac booster and vac resivoir, if you so much as looked at the brake pedal, the pump would kick on, and it was noticably noisy, even over the flowmasters on teh guy's car.

 

NAPAOnline.com lists NVP64150 for all of these applications. It's available in-store only, so there's no price listed. Hope this helps somebody. I'm adding this part to my junkyard list.

 

Thanks! I'll add the NAPA number to my list. I sure wish that we had a NAPA store in Wichita, KS.

 

Some Dodge diesel trucks had them also for a vacuum source for the cruise and heater door servo,s....

 

You can also find them on motor homes. We see them all the time on GM and ford powered coaches for vacuum boost to all the accessories.