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#1
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Vacuum Pump
Back in the mid 80's Cadillac and Buick used a belt driven vacuum pump to run all the vacuum accessories including the brake booster.
http://www.cardone.com/Products/Prod....%3a%3a%3a Has any one tried to install one on a Pontiac. I have one unused pulley on the Jap A/C compressor. Or perhaps installed as an idler on the A/C Belt. Any idea's or comments are welcome.
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Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk Last edited by Blued and Painted; 06-04-2014 at 12:04 AM. |
#2
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I purchased a few new Cads in the 80's, and they had electric vacuum pumps. Sure about some being belt driven?
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
#3
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i've only heard about electric ones too
haven't seen them in person some of the diesel cars also had them what are you trying to accomplish? use it a crank case evac and accessory driver? or just for PB/acc? |
#4
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Yes, it would be for the brake booster and accessories.
Not a good pic but here's one on a Cadillac 8-6-4 engines, south of the dist and under the end of the snorkel. I thought is was a good idea back in the day. Not the 864. I'm surprised no one has adapted one for a street application with a biggER cam. http://www.autotraderclassics.com/sc...3739203789.jpg
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Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk |
#5
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I have a mechanical one on the shelf right now that I pulled from a 4100HT in the junkyard.
My Firebird currently is manual brakes and steering, but if I ever run a power booster I will consider using it, though the cam makes decent vacuum, but when I go turbo, it'll just be a way to keep the brake system separate. I don't believe it'll pull the volume needed to be a good crankcase vacuum source, so is likely limited to the vacuum brake booster and HVAC, etc accessories. I have three other cars that I've considered using it on depending on the direction of each build. My T-bird has a bazillion vacuum operated gadgets and if I build a cammed FE engine I'd use it there.
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__________________________________________ "How I learned to stop worrying and love the OHC Pontiac L6" The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 3 & TKO-600 (Drag Week 2011, 2012 & 2015!) 1969 Firebird with a turbo'd Pontiac L6 controlled by a MegaSquirt 3 and backed with a microsquirt controlled 4L60e and 4.56 gears! (Drag Week 2018!) |
#6
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I have a electric one from a newer Ford diesel. It was from the bodyshop and only had a small crack in one of the ends. I was having vacuum problems but as the engine rings break in it seems to be getting better.
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'68 GTO '69 Corvette '75 Cadillac Coupe Deville TOM |
#7
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i had an electric cadillac version on my car to operate the power brakes. simple and clean installation, worked pretty good.
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#8
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I am using a remanufactured Cardone pump #32-428 for crankcase evacuation. The pump came on early 1990's Cadillacs with the 4.5L V8. Butler Performance used to offer this pump in their street vacuum pump kits before they upgraded to the GZ vacuum pump. When driven at 55% of crankshaft speed, it generates about 1" of vacuum at 1000 RPM and 5" at about 3500 RPM. I made a new drive pulley to spin at 85% crank speed and it makes about 3" at idle and almost 9 at 4000 RPM.
I would think this could be used with a vacuum reservoir to power accessories. The pump is readily available for $65-95 online all day long.
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69 Judge convertible........clone! Carousel red, parchment, hideaways, TH400, 10" Continental 3200 stall, 12 bolt with 3.42, 469 c.i. with ported #48's, ported cast iron intake, Cliff's Q-Jet and ported 2-1/2" Ram Air manifolds. |
#9
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Quote:
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#10
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I replaced my brake booster with a hydroboost system when I added power steering, and have been very happy with the results.
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1965 Pontiac LeMans. M21, 3.73 in a 12 bolt, Kauffman 461. |
#11
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Ford Mustangs had electric vacuum pumps throughout most of the mod motor years (94 and up). Very easy to find in the scrap yard. My father uses one from a mustang on his 69 goat for several years now to supply vacuum to the power brakes, works great. Hidden up inside the front fender you don't even know it's there until you turn the key on. Once the engine fires you can't here the pump running.
I do believe eventually he'll go hydroboost when time allows. That's what I'm doing as well. |
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