Power Steering Pressure?

[evlRA]

Hey thinking of changing my power steering lines round..

Just wondering if anyone knows the approx pressure that the fluid is running through these lines? don't want to have a hose clamp fitting blow off and make a mess!

Thanks

[Joker]

http://tinyurl.com/ranw7p

=

http://forum.ih8mud.com/80-series-tech/287547-modifying-stock-power-steering-pump-increase-pressure-hydraulic-winch.html

about 1200 PSI?

[Swindog]

Lol woah thats only be if it was working whewn you removed the hose tho right?

[Guest keltik]

Well uh...yes

[evlRA]

so if i used 300psi fuel line and hoseclamps it wouldnt be safe? im sure i have seen others running that set up

[Guest keltik]

I personally wouldnt trust my steering and pump to it. Surely hydraulic hose cant be that expensive.

[DRFVDR]

on the pressure side i would only use hydralic hose and fittings

on return side u could use the fuel hose

[Tony]

 DRFVDR said:

on the pressure side i would only use hydralic hose and fittings

on return side u could use the fuel hose

Exactly.

That is how I have done mine. Dont want to take any chances with power steering fluid - it catches fire quite well being so close to the turbo...

[Koom]

 Tony']

[quote name='DRFVDR said:

on the pressure side i would only use hydralic hose and fittings

on return side u could use the fuel hose

/quote]

Exactly.

That is how I have done mine. Dont want to take any chances with power steering fluid - it catches fire quite well being so close to the turbo...

I've had that happen twice now! Cracked a factory swage once and the pump kinda ate itself the other time and haemorrhaged everywhere. The extinguisher makes more of a mess than the fire usually unless it gets near any wiring.

[evlRA]

woah. thanks for the help, definitely learned something! not going to take any chances

I will use the factory steel line from the pump to the rack, and use Push Lock line from the rack to the reservoir (return)

[Koom]

 evlRA said:

woah. thanks for the help, definitely learned something! not going to take any chances

I will use the factory steel line from the pump to the rack, and use Push Lock line from the rack to the reservoir (return)

Doing it that way, you can even add in a small length of steel line in front of the radiator (or a small heat exchanger) to try to take some heat out of the fluid too

[Swindog]

 keltik said:

Well uh...yes

By working i mean not just the engine running but the pump operating at max, ie full lock.

[Joker]

even the original figure spouted by me via google search seems excessively high - was I right?

and if one was to assume it is I would also assume like Swinny above that's a "peak" pressure quoted? a\

and that normal pressures could/would be significantly lower than that? say around the 800+- mark?

[Swindog]

Id think even lower mate. IF it was 1200psi it would have to be at a certain rpm

[evlRA]

Ok so now my other problem..

how do i remove the 2 fittings that go into the steering rack?

My engine and gearbox are in, and i have tuned length extractors so i can't remove the up-pipe. which means they are in an EXTREMELY hard place to get at!

Anyone have any suggestions? using a crowfoot wrench? removing the steering rack with lines attached then doing it?

Thanks

[DRFVDR]

good luck

i ended up making a spanner to fit them

17 and 14

also drop the rack as far as u can

real easy with no turbo/up pipe

also maybe jacking engine up

[Koom]

Last time I did it I used one of those bars that goes across the engine bay and you strop the engine to it. Then dropped the subframe down. Those fittings were very easy to get to then

Jacking the engine up could have the same effect but will be hard to get the same amount of clearance.

[evlRA]

Koom, your way sound perfect! as i don't have an engine crane.

Tell me do you have one of those braces that you strop the engine to? or where can i find one?

Thanks alot

Sam

[Koom]

I borrowed one from my mates workshop. Not sure if its the kind of thing you can generally hire though??

Workshop's (or people) that do lots of fwd stuff or Mitsi's should have them as they are good for stopping the engine falling over when you take the gearbox off.

[evlRA]

i suppose i could use some lengths of 4x2 and some strops. a bit ruthless but would do the trick

[Joker]

+some blankets on guards etc, be a shame to crease your panel-work!

[evlRA]

I have never actually removed a subframe before..

Does anyone know whats involved? level of difficulty? thread on another forum or any usefull information?

Thanks

[Optical]

Dropping the subframe isnt that hard really, 4 bolts and the steering rack universal joint.

I have this exact PITA job to do tonight as i think ive got a leak where the rack connects to the lines. Im going to try unbolting the steering rack from the subframe first then pulling everything down. Might get lucky and get access to the connections that way...

[evlRA]

Cheers Optical, i am busy with exams at the moment so i will let you pioneer..

Get back to me tomorrow with what you did and how successful you were!

[evlRA]

Ok so i decided to re-do my power steering lines, here is what i did.. (Idea courtesy of Tony (Ronin)

Items:

1m 8000psi Teflon Inner Braided Hose

1m 300psi Push Lock Hose

2x -6AN teflon braided fittings

1x -6AN push lock fitting

2x -6AN male steel weld on fittings

Got the steel weld on fitting welded to my hard lines like so..

The advantages of this set up are:

1. Better looking engine bay

2. Easy removal

3. Stronger and flame proof