I reported this thread suggesting it should be a sticky...
CK5
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Illustrated Hydroboost swap
- Thread starter Blue85
- Start date
OK, sticky for a while at least. If any of the other mods or Steve disagree I have no issues with it being "unstickied" at a later date. I don't foresee a problem with it though.
This may be going full retard but I was kinda lost when I did mine. I was also upgrading to hydro steer at the time of install so take this into consideration when reading. The hydro boost master cylinder gets pressure from the powersteering pump to produce "boost" or energy to help out your brakes. There are 3 ports in the hydroboost master. There are 2 threaded ports & a push on style hose fitting. The threaded fitting on the passenger side of the booster receives pressure from your power steering pump. The threaded fitting on the drivers side sends pressure to your power steering gear. The push on style hose fitting forward & on the drivers side of the booster is a return line. The return line will either return back to your pump (standard system) or back to your resivore (hydro steer) actually they both return to a resivore, but the standard pump has a integral resivore, after market hydro steer pump has a divorced resivore.
So, your pressure left the pump, went threw the hydroboost master cylinder & went into the steering gear. The side of the steering gear that receives pressure master is the passenger/forward fitting. The drivers/rear fitting will send fluid back to the resivore. Now, if you are running a cooler this is where it will go. Inbetween the steering gear & the resivore. Your PSC resivore for hydro steer with hydro boost brakes will have 3 ports. 2 returns, one to feed the pump.
So, your pressure left the pump, went threw the hydroboost master cylinder & went into the steering gear. The side of the steering gear that receives pressure master is the passenger/forward fitting. The drivers/rear fitting will send fluid back to the resivore. Now, if you are running a cooler this is where it will go. Inbetween the steering gear & the resivore. Your PSC resivore for hydro steer with hydro boost brakes will have 3 ports. 2 returns, one to feed the pump.
This is the funky looking line that will take the fluid from the pump to the master cylinder. I'll edit with a part #. I think I used lines from a 85 Chevy C30. The top of this line connects to the passenger threaded O ring fitting on your booster, the bottom connects to the threaded O ring fitting on the back of your power steering pump. Don't forget your O rings!
And this is the PSC resivore that makes everything under my hood look inadequate. The huge port on the left feeds the pump. The middle port is a return that receives fluid from the cooler/steering gear line. The port on the right is a return line that receives fluid from the hydro boost master cylinder.
tgdoumit
Newbie
so, i may have missed this but:
if i have the standard hydro clutch type pedals and bracketry, can i add the hydro brake pedal in place of the diaphragm booster pedal? is it the same pedal base as the hydro boost style? i really want to stay as OEM specific as possible.
thanks!
if i have the standard hydro clutch type pedals and bracketry, can i add the hydro brake pedal in place of the diaphragm booster pedal? is it the same pedal base as the hydro boost style? i really want to stay as OEM specific as possible.
thanks!
Yes, the brake pedals are identical aside from hole placement. The hydro pedal also comes with a return spring that should swap over pretty easily. I have pictures of doing this in my M1009 thread.
tgdoumit
Newbie
a friend has a 84 2wd set, looks different so I'm thinking i might not want to convert this one to the hydroboost pedal. it doesn't have the supports under the column
I've been told to stick with 85 to 91 one ton stuff... i don't know how true that statement is for my 88
I've been told to stick with 85 to 91 one ton stuff... i don't know how true that statement is for my 88
'85 is the start of hydraulic clutch linkages, the pedal setup before that is beefier with mechanical linkage points. I had no problem switching my '84 hydroboost brake pedal onto an '86 vacuum boost set. It was the same as when I switched the '86 onto a different '86 set.
Well that is good newsThanks !
When i did my conversion this thread was not in existance. And i can say after reading it a few times (before photobucket ruined it) i could have saved a ton of trial and errror not to mention some custom machine work.
Thanks again for the write up. And then repairing the pictures
When i did my conversion this thread was not in existance. And i can say after reading it a few times (before photobucket ruined it) i could have saved a ton of trial and errror not to mention some custom machine work.
Thanks again for the write up. And then repairing the pictures
