How big is the electric pump assembly? Any pics with a ruler or tape measure next to it for perspective.

 

Here’s an older thread on the subject:

https://www.chevelles.com/threads/cvr-vp955-vacuum-pump.989658/?post_id=9958122#post-9958122

 

Use some rubber mounts like these to keep the noise and vibration down.

Aeromotive 11601 Aeromotive Fuel Pump Mounting Brackets | Summit Racing

 

I have a 1970 Chevelle SS 396, I had to add an electric vacuum pump as well.I mounted mine on the drivers side just a few inches forward from where you where thinking of mounting yours.I made a bracket out of Aluminum, the pump mounts to it and the bracket to the front of the fender well. It seems to be fine and I have had no issues from any vibration.
Doug

 

I mounted one in mine and mounted it behind the battery. Hidden and well supported. Been there for several years without issue.

 

This is where I am looking to put my leeds pump. Just pulled the battery Sunday.

 

you could always go to hydra-boost.

 

Hey Guys thanks for the replies. This pump is the MP brakes silent vacuum pump. About 7 inches high. It's small. It will fit nicely where the window washer fluid jug was mounted. My only concern is that the metal there is 16-18 gauge and the vibration from driving might crack the metal. I'll post pics so you can see what I had in mind. Thanks again.

 

Okay here's some pics.

 

Yah that is same position that I suggested just on drivers side as opposed to passenger side. Where you are going to put the pump i have a reservoir mounted for the pump. Advantage of using other side is one could beef up the metal and would not be noticeable. I did not beef mine up however.

 

Brad, Thanks for your reply. That's the spot the window washing fluid jug was mounted on the drivers side. I have fiberglass inner fenders to I cannot use those at all. I thought I would mount it on the flange in the picture where the jug was. My only concern was that the metal might not be strong enough. On the other hand that part of the fender is also where the hood hinges are attached so you'd think it would be pretty strong. How could you beef up the metal? I don't want to weld on that it's only 16-18 gauge. I could put a plate on the back side but would that even do anything? A bracket to the flange but then where? If I have metal inner fenders that would have helped a lot.

 

. I have fiberglass inner fenders to I cannot use those at all.

Sorry I just assumed they were metal inner fenders. If they were metal they could possibly be beefed up just by adding an additional piece of sheet metal and bolting it all together.

 

hi
I would explore .
Have vertical sheet metal connected ,,[top] inner side fender and bottom and bent 90 deg to attach to inner wheel skirt . You would need to allow for panel flex so rubber isolation mounts would need to be at bottom panel connection .

The Pump looks like a Hella UP5 . Comparing specs will reveal details . More broadly Never ever use Chinese knock off they do not work well at all .

 

I'm thinking the fender should be strong enough. When this thing runs there is zero vibration. I got this from MP Brakes.The pump is made in Germany.

 

Swampy, You are correct. The pump says made in Germany, Hella UP5. It's very quiet and doesn't vibrate at all. It's just kind of heavy at 6.5 lbs. The concern is not that it would fall off or something but while driving the roads aren't exactly smooth so will hitting all those bumps make the pump flop around on that flange and crack the metal?

 

I wish they were metal Brad. Would have made this easier to beef up for sure. Suppose I could try and rig a bracket of some sort from the front where the frame bolts to the front end up to that flange.

 

Do these pump have to be perfectly level? The flange is bent slightly (about 3 degrees) so the pump would not be perfectly leveled. They said it must be vertical but does that imply perfectly level?

 

It's installed and it's not going anywhere.

Now I got to run and 18 gauge wire to a keyed 12 volt sourse. I'm planning on plugging it into the male spade marked IGN on the fuse block. I found a nice spot to run the wire through the firewall. Only thing is my oil pressure copper tubing goes through that hole. Does the copper tube get real hot? Don't want to melt any wires or short everything out.

 

Don't want to melt any wires or short everything out.

Simple solution just use a piece of heat shrink or two over the wire in the area where it is close to the tube.

 

Are you triggering a relay with that 18 ga wire, or running the pump off of it?

 

Triggering a relay thats mounted inside the pump housing. The power running the pump comes directly off the battery.

 

Are you triggering a relay with that 18 ga wire, or running the pump off of it?
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Simple solution just use a piece of heat shrink or two over the wire in the area where it is close to the tube.

Okay. Got her up a running. Brakes a better now. Still not perfect but better. Strange thing happened though. After I got down hammering on the brakes to make sure they would stop the car I parked, got out and the brake lights were on. The pedal was stuck? Got back in the car hit the pedal a couple times and it popped back up. Why would that happen?

 

off the top of my head, first thing comes to mind is either your pedal isnt returning all the way, or the brake light switch is out of adjustment.

 

You had some other engine in there before this one?

 

Yes. There was a truck crate engine in it. The previous owner blew up his 396. The car was set up for street only. The mechanics told him to stay off the freeway. He didn't listen and blew the engine. Instead of rebuilding it he put in a crate truck engine. At that point the brakes didn't work well at all. I had the 396 rebuilt, put in a big cam and put her back in. Well, the brakes sucked so we started messing around with the linkage between the booster and the MC. Bad idea. I didn't know at the time that it had to be done a certain way. We managed to get the brakes working better but ruined the MC doing so. That's why I have a brand new MC. So, we set it up correctly but due to low vacuum bad brakes. So, I put in the vacuum pump. that helped a lot but it still can feel hard at times so I was thinking of putting the reservoir back in. Maybe with the pump and the reservoir that hard feeling will go away.