Vacuum pump

[Tom Carter]

So in speaking with Bob 71, he convinced me to put a vacuum pump in for my brake booster. With the cam I put in there isn't much vacuum produced by the engine. My brake pedal was not great. Seemed stiff when hitting the brakes. I appreciate Bob giving me the advice to install the vacuum pump. My brake pedal feels great now. I feel like I have much better braking power with not as much effort. If anyone is debating this, don't hesitate. I installed in in the fender well on the driver's side. Ran the hose behind the fender as well as the wiring. It fit well and is a clean look. To be honest it is concealed well. If you didn't know what you were looking at you wouldn't notice it at all. It is a touch noisy but I think that's just because it's new. I bet after a short time I won't hear it at all. Again, thanks to Bob 71 for the advice.

[MC-71]

Not showing here. Can you post the part number and where you bought it ? That would be great.

[Tom Carter]

I installed the vacuum pump from Summit racing. It is a touch loud. I currently don't mind.  SUM-760152 is the part number.  I understand the Leed pump is a quieter unit.  They also sell that at Summit. I didn't get that one first because I didn't know how the pump would or would not work. If my Summit unit fails I would try the Leed pump next

 

[cny first gen 71]

1 hour ago, Tom Carter said:

I installed the vacuum pump from Summit racing. It is a touch loud. I currently don't mind.  SUM-760152 is the part number.  I understand the Leed pump is a quieter unit.  They also sell that at Summit. I didn't get that one first because I didn't know how the pump would or would not work. If my Summit unit fails I would try the Leed pump next

 

Tom how did you mount it? Is it on some kind of rubber insulators or just metal to metal?

[Tom Carter]

There are rubber insulators on the mounting block. I added more though. Wanted to make sure it didn't vibrate. 

[Michael Boyte]

We too had the same issue, with the .730 lift , we had no vacuum. Added the vacuum pump in the very same location as you did Tom and also doubled the rubber mounts. No further issues !  

[Whons]

I had the same issue with my 1970 Monte. thats the car that I had the Lemon Squad inspect. The Inspector never road tested and lied on the inspection. I had to do the same thing, add a vacuum pump. The best pump is a Rotory Vane pump made by Leeds.

[Tom Carter]

I have heard the Leeds is the best. Not much difference in the price. I would have sprung for the difference if I know how much better the pedal is. I can say its a whole new world. I may change it out down the road

[jft69z]

I have 2 of the Leeds pumps, no problem so far.

[Whons]

There's no comparison between the piston type and the rotory vane pump no noise at all. 

 

[Scott S.]

Back in the mid '80's G.M. had a factory vacuum pump for the brakes in a couple models..... Namely the Olds Vista Cruiser (and variations of it) the Buick G.N./T-Type, and some versions of the P.O.S. and taxi Impalas.  I'm not 100 % sure, but it looked like it was a "bolt in" for where the vacuum pot mounted. 

The motor was fairly quiet, but when the pump failed there wasn't much in the way of getting it repaired back then. 

[420ponies]

I just gotta see your set up.I might just need this with the new big block. I still have the old Jeg's setup on mine. I'm going to use it if I need too. I thought I had seen it on Joe's Monte. 

[jft69z]

47 minutes ago, 420ponies said:

 I thought I had seen it on Joe's Monte. 

Mine is hidden under the driver side fender, mounted on that C-channel brace that also attaches to the inner fender well.

I removed it from the original plastic case too.

[DragCat]

8 hours ago, jft69z said:

I have 2 of the Leeds pumps, no problem so far.

Thats on my list for next project 😁