Powerstroke vaccum pump-Now Hydroboost install questions - 460 Ford Forum
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post #1 of 25 (permalink) Old 05-21-2007, 11:15 PM Thread Starter
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Powerstroke vaccum pump-Now Hydroboost install questions

Is anybody using one of these to supply vaccum to their brakes. I am in desperate need of more vaccum. It gets kind of scary sometimes not having hardly any vaccum and needing to stop :shock: I heard that durability is kind of an issue but don't remember though.
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post #2 of 25 (permalink) Old 05-22-2007, 01:35 AM
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The vacumn pumps on the powerstrokes aren't very dependable, just from my exp. My buddy runs one on his sled pulling/street truck from the Summit cat. It seems to work really good. Rick

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post #3 of 25 (permalink) Old 05-22-2007, 08:22 AM
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Well after mine broke, it locked up solid :shock:, on my 97, I bought the cheapo from UnAdvanced... POFS. It works, but braking is spotty, at best.

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post #4 of 25 (permalink) Old 05-22-2007, 05:30 PM Thread Starter
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Any better recomendations then? I'm just tired of not having great brakes on a 5100# truck :evil:
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post #5 of 25 (permalink) Old 05-22-2007, 05:32 PM
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Hydroboost.

With a little plumbing into the power steering system you'll have better brakes than you could have ever imagined.

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post #6 of 25 (permalink) Old 05-22-2007, 06:42 PM
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hydrobosst x2

Look for a 88-97 F350 hydroboost. Are you running rear disc or drums? There is a choice of master cylinders to match the rear brakes.

Some people even use the original prop valve or they just gut it and use it for a distribution block.
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post #7 of 25 (permalink) Old 05-22-2007, 10:10 PM
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My 1997 F250 with a Powerstroke has 204,000 miles on it. The original pump went out at 110,000 miles and the new pump from Ford is still working good.

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post #8 of 25 (permalink) Old 05-22-2007, 11:38 PM
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the problem with them is the little screw holding the cap on the rear comes out, the cap falls off and the lube goes everywhere, then it locks up.Other than that they are pretty good pumps. The hydroboost is the way to roll........

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post #9 of 25 (permalink) Old 05-23-2007, 06:28 AM
 
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Vacuum pump

I ran one for several years, the only problem i had was getting the pully lined up, and not having mech adjustment. The pump itself worked fine. I finally went to an electric pump and am satisfied with it.
Bob
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post #10 of 25 (permalink) Old 05-23-2007, 10:51 PM Thread Starter
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Quote:
Originally Posted by Monstermiler
hydrobosst x2

Look for a 88-97 F350 hydroboost. Are you running rear disc or drums? There is a choice of master cylinders to match the rear brakes.

Some people even use the original prop valve or they just gut it and use it for a distribution block.
I've got disks on the front, drums on back. I kind of thought our F-350 would have hydroboost but was surprised to find the vacuum pump :shock:
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post #11 of 25 (permalink) Old 05-24-2007, 08:24 PM
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The 1988-1997 gas F-350s I have seen from back then had hydrobbost and I know the parts house shows a hydrobbost unit avaialable. One thing you will want to do if you upgrade to hydroboost is to get the matching master cylinder for rear drums. Also check into 78-79 F350 rear wheel cylinders. They should be direct bolt ons. Use the prop valve you have now with no mods. With these mods you should be able to plant you face on the windshield. :lol:
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post #12 of 25 (permalink) Old 05-25-2007, 11:23 PM Thread Starter
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so the 73-79 f350's had hydroboost? or are you meaning the 88-97's. That would be cool if it was a direct bolt in. I'd do that in a heartbeat :lol:
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post #13 of 25 (permalink) Old 05-25-2007, 11:31 PM
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Sorry I meant 88-97 for the hyrdoboost and the 73-79 for the F350 rear wheel cylinders. I forget what year the hydroboost unit went to metric fittings, but there are adapters available to use AN fittings.
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post #14 of 25 (permalink) Old 05-26-2007, 02:26 PM Thread Starter
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would you go for the hydroboost from advance or would you get it someplace else? Seems like alot of this rebuilt stuff is not always very good :roll:
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post #15 of 25 (permalink) Old 05-26-2007, 07:19 PM
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I have had both good and bad luck from Advance. Take a look at the this Bendix Hydro unit R2770433. Things to watch for might have to make an adpater plate to mount and the rod length may have to be changed. Also look at the new Bendix master cylinder 12197. Your original master cylinder has an 1-1/16 bore and the Bendix is 1-1/8. It will make the pedal feel a little harder but will deliver more fluid. I prefer Bendix over most brands and I always try to buy a new master cylinders when I can. I do have the Ford or motorcraft numbers too. Just need a day or so to dig those up.
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