hydroboost brakes, how do they work??? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 10-15-2003, 04:04 PM   #1 (permalink)
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hydroboost brakes, how do they work???

Well, just like the topic says, how do they work, and what's required to set them up?? I know absolutely nothing about them, except that they run off the powersteering pump. That's it, no idea what's involved or anything. Help me understand. Thanks

Also, any pros/cons when running full-hydro?? I know about the power beyond port style orbitals and that they give priority to the steering.

Ary
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Old 10-15-2003, 06:09 PM   #2 (permalink)
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from a hydroboost pump(2 low pressure fittings) to the hydroboost booster to the power steering box. There is return line from the booster and the PS box back to the pump.

How do they work? AWESOME. My 4 disc w 38s setup stops better than any car I have, to include 2 sportscars.

The only way to boost, untill the motor stops
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Old 10-15-2003, 06:16 PM   #3 (permalink)
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Thanks. By how do they work, I meant what is the theory and process behind how they work. Not if they're good at doing their job Thanks

Ary
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Old 10-15-2003, 07:26 PM   #4 (permalink)
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Some of the guys on the board have had problems running hyrdo brakes and hydro assist/full hydro steering. They have claimed they only have enough power to steer OR brake at idle(like on a down hill) and some claim to have boiled there fluids before. Somebody was working on a dual powersteering pump setup, I dont know if they ever got anywhere though. would be easy enough to fab. Dont know how they work though.


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Old 10-15-2003, 08:35 PM   #5 (permalink)
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Try this link

It helped me out with my hydroboost....as for how it works, it works much like a vaccuum assist booster, except that it runs fluid from the powersteering pump instead of vaccuum from the engine....the fluid from the powersteering pump builds up more pressure than vaccuum pressure, which (I believe) pushes a piston/rod thing against the brake fluid (with, of course, more pressure).....I have one in my cj7, and one that came stock in my '97 'burb 2500.....Just make sure you have slack in the brake pedal, the one on my cj wasn't adjusted properly, and after riding on the interstate for 20 minutes or more, my brakes would heat up and I'd have to pull over....I had no clue until I found the link above and checked my pedal...a few washers inbetween the firewall and the hydroboost and everything was fine....no problems since....and I haven't experienced the steering/braking issue stated in an above post
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Old 10-16-2003, 08:07 AM   #6 (permalink)
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fuckifiknow-could be MAGIC?
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Old 10-16-2003, 12:42 PM   #7 (permalink)
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they work just fine
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Old 10-16-2003, 12:53 PM   #8 (permalink)
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Quote:
Originally posted by BobWilliams
they work just fine
Thank you so much for your deep, intrigueing, and thoughtful response

I guess it would help if I really understood how the power steering system worked. I don't understand what exactly the powersteering pump does, except making it easier to turn. Maybe if I knew how that worked, I could see how to apply the theory to brakes. Thanks.

Ary
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Old 10-16-2003, 01:02 PM   #9 (permalink)
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Quote:
Originally posted by Arya Ebrahimi


Thank you so much for your deep, intrigueing, and thoughtful response

I guess it would help if I really understood how the power steering system worked. I don't understand what exactly the powersteering pump does, except making it easier to turn. Maybe if I knew how that worked, I could see how to apply the theory to brakes. Thanks.

Ary
that was the reply I was expecting the main reason I posted is because I just reworked my hole setup and went through everything and I still dont understand.
your power steering pump is designed on volume not pressure the more volume that the pump can put out the easier the wheel turns I dont understand how its tied into the brakes. one nice thing is when your vehicle dies you still have good brake pressure unlike the vacum style brakes.
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