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#1
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Vacuum "pressure"
I am in the process of replacing my vacuum pump. I will post pictures later. Caught it before the thing killed the engine. I should have noted that the door locks were not working like they used to (starting about 8 months ago), then lost all vacuum.
But I was thinking about an electric pump. I can get a 12V pump that puts out 20 lbs of vacuum. Is that going to be enough for the power brakes and anything else I need?
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NC Benz Fuquay-Varina, NC 1979 300D 1983 300D Turbo 260,000 Miles 1984 300D Turbo 345,000 Miles (sons car) OBK #31 1998 Ford Expedition 5.4l (fer Haulin'!) 145,000 1973 19' SeaRay with 115 Mercury TOWER OF POWER! Club Car Golf Cart 36V Ex toys: 1967 Mustang 289 (First Car) Fiat 124TC 1975 Honda CVCC 1980 Audi 5000 Turbo |
#2
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Do you mean inches of vacuum? The 123's need between 18-23" of vacuum.
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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#3
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Quote:
Oppps My bad. Yes inches. So 20" **should** work then.
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NC Benz Fuquay-Varina, NC 1979 300D 1983 300D Turbo 260,000 Miles 1984 300D Turbo 345,000 Miles (sons car) OBK #31 1998 Ford Expedition 5.4l (fer Haulin'!) 145,000 1973 19' SeaRay with 115 Mercury TOWER OF POWER! Club Car Golf Cart 36V Ex toys: 1967 Mustang 289 (First Car) Fiat 124TC 1975 Honda CVCC 1980 Audi 5000 Turbo |
#4
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Yup. You'll have to make a blocking plate. Lots of folks have asked about an electric vac pump so try some searching to find more info.
Also you may have an issue with the volume of vac being pulled. If it can't pull 20" in a large diameter hose you'll have an issue.
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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#5
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Quote:
I was thinking about taking the roller bearing and attached pin out for the pump would not be active - that would be my "plate".
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NC Benz Fuquay-Varina, NC 1979 300D 1983 300D Turbo 260,000 Miles 1984 300D Turbo 345,000 Miles (sons car) OBK #31 1998 Ford Expedition 5.4l (fer Haulin'!) 145,000 1973 19' SeaRay with 115 Mercury TOWER OF POWER! Club Car Golf Cart 36V Ex toys: 1967 Mustang 289 (First Car) Fiat 124TC 1975 Honda CVCC 1980 Audi 5000 Turbo |
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That would work too.
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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#7
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Here is a Thread from several weeks ago. The subject comes up ounce in a while. A new unit that is made for the job cost as much as a new Vacuum Pump.
Vacuum Pump Thread: http://www.peachparts.com/shopforum/showthread.php?t=259899 If you decide to buy a new one you need to take some time and find the thread where the Member Installed a new Vacuum Pump and that ne pump got destroyed quickly. It was due to too much end play in the Timer Bushings.
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84 300D, 82 Volvo 244Gl Diesel |
#8
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Here is the thread concerning a new Vacuum Pump damaged by too much Timer end play.
http://www.peachparts.com/shopforum/showthread.php?t=258062&highlight=vacuum
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84 300D, 82 Volvo 244Gl Diesel |
#9
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Do not forget it has to miantain that level of vacuum with some air flow from varius components or leakage.
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2010 ML350 Bluetec 2012 Mustang Convertible |
#10
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I forgot to add Electric Vehicle sites (EV) where people convert or make their own EVs have some info on Electric Vacuum Pumps for the Brake Booster.
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84 300D, 82 Volvo 244Gl Diesel |
#11
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If you decide to buy a new one you need to take some time and find the thread where the Member Installed a new Vacuum Pump and that ne pump got destroyed quickly. It was due to too much end play in the Timer Bushings.[/QUOTE]
"Timer Bushings", thats the word I was looking for
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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