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Location:
Brisbane
Registered:
June 2003
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power steering cooler..high pressure?
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Wed, 18 August 2004 01:45
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I got a tranny cooler off a magna..steel tanked bar + plate style.
Im intending on using it for my power steering cooler, as i hear the toyota racks have a habit of failing under heat.
Now, is the line for the cooler high-pressure? I.e will it blow my cooler apart? or will it be fine?
Blake
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 01:48
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Run it on the low pressure side.
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 03:38
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ie the one from the reservoir?
it formerly came:
from the reservoir, through the rod, and down into the rack..all of the hoses look as if they are high pressure 
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Location:
Montrose, VIC
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 03:52
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The hose that goes from the rack back to the bottle is the low pressure one - there should already be a loop of pipe in it somewhere
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 04:02
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there isnt one that goes from the rack to the bottle
it goes from the pump, to the bottle, to the cooler, and back down to the rack...and then back to the pump i believe..
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Location:
Sydney
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 04:45
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it's the other way round
the bottle (resevoir)feeds the pump from the bottom
pump pumps into the rack(high pressure) then comes out of the rack, goes thru cooler and into the top of the resevoir
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Location:
Sydney
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 04:45
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the only barbed fittings that are neccassary are for the pump to the rack everything else can be hose clamp etc as its only neccassary to seal them so the liquid doesnt come out not under high pressure.
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 04:48
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so can i use the existing setup (way the pipes were) with the cooler or??
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Location:
Brisbane
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 07:06
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Why are you making this so diffcult?? Remove factory "cooler" (ie bit of pipe), replace it with real cooler. Done.
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Location:
Sydney
Registered:
July 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 07:31
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Norbie is right, it shouldn't be that difficult.
There are 2 lines that go towards the front of the car (sitting above the chassy rail directly opposite the battery). Put your cooler on these. They'll need a clamp, but not a high pressure fitting.
these 2 here ^ ^
On this pic there are two PS lines that are clamped that point towards the front of the engine. These are the ones you want to put the cooler on.
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Location:
Sydney
Registered:
July 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 07:34
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I keep forgetting your talking about a MA61 as your pic has a MA70.
I don't know where the lines are in a MA61 so my post above might just be total crap. (but relevant if you're talking about a MA70)
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 07:42
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Find power steering pump.
You will see 2 hoses coming from it. One comes out of the bottom of it and heads off to the rack. This is your high pressure line. It will be rather securely attached to the pump with a big flare nut or a big banjo fitting (can't remember which).
You will see the other line goes to the reservoir. Trace this line back and you will see that it heads to some pathetic loop of pipe at the front of the car that Toyota dared to call a power steering fluid cooler. This is the low pressure side of your power steering circuit.
Replace this loop of pipe with your Magna cooler.
Job done. Enjoy alcoholic beverage of your choice..
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Registered:
August 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 07:46
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Id take a picture but its pissing down.
Look inside your front bar, there is a crappy sideways 'U' pipe which is the factory cooler. As describd above its already on the low pressure line, remove it and replace with your cooler.
Too easy.
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Location:
Rocklea qld
Registered:
February 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 10:08
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it wont matter were it does...the cooler will handle around 120 psi anyway unless there is a problem with it and if there is then u dont want that in your car anyway. if you are worried let me know and ill test for ya.
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Location:
Brisbane
Registered:
June 2003
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 13:12
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oh and pete, its the same setup as an ma70..which ill also be replacing soon..i got 3 magna coolers 
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Location:
Brisbane
Registered:
February 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 13:16
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slightly OT: does the MA61 power steer system have problems with heat?
apart from mechanical failures of seals (which will happen with regular use so they're not an issue) - is the stock system prone to overheating or becoming troublesome when the fluid gets hot?
the reason i ask is the hydraulics you find on a cement truck have a reasonable small cooler considering the work they do, especially the direct drive motors turning the barrel- and my G/F father's tractor has massive hydraulics for 3PL, big front blade, steering, etc and it has no cooler, just a big reservoir, and it's been run hard all day long without any issues.
So maybe the pissy cooling pipe is all that's needed? (if the fluid and pump are up to scratch)
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 13:19
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my rod used to get pretty hot when driving, ill feel the ma70s tommorow after a bit of a drive. but yeah they do run hot...and the reservoir is only tiny really...
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Location:
Montrose, VIC
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 14:59
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Does anyone feel brave enough to mention 'PS fluid temp' and 'Commodore' in the same sentence? 
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Location:
Adelaide
Registered:
September 2003
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 15:20
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| mrshin wrote on Thu, 19 August 2004 00:59 |
Does anyone feel brave enough to mention 'PS fluid temp' and 'Commodore' in the same sentence?
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Yep, it is a known problem, especially when a long fang has been had. I know with the new car (VZ), they have chnaged the coolers to the rod type with the spring wound arount to get better cooling and have sourced new pumps (and the reservoir is a little different as well.
For my MA61, I'll be replacing the "ideways plain U" (well described by BlackSupra  ) with a Monaro version until I get tired of it and remove the PS as dione by Ed_MA61
Oorooo
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Location:
Brisbane
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Wed, 18 August 2004 22:35
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I killed two PS racks (ie end seals) in the space of 3 months. I don't know exactly why this happened, but I was regularly participating in sprints at Queensland Raceway at the time, so my theory is the extra stress that placed on the PS system made it get uber-hot, and that buggered the seals (or at least helped).
In any case, installing a good PS cooler is cheap and easy so I'm going to do it. It will be interesting to see if my currently-functioning rack survives the next round of QR sprints once I've got the car running again. 
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 06:02
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thanks fellas.
one last question though, the hose that used to go to the rod, was like hi pressure hose...do i need to buy this again, or will normal a/t fluid hose be sufficient?
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Location:
Brisbane
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 06:07
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As has already been explained several times, that's the low pressure side of the system, ie there's practically no pressure in there at all. Use any hose you like.
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Location:
c'town, NSW
Registered:
May 2002
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 06:09
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is this thread still going? 
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 06:09
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ta
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Location:
south east - melbourne
Registered:
March 2004
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 07:15
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SO the little spring like devicee -- running from the power steering reservoir ,in my gz20 soarer is the shitty cooler u guts talking about ,
so is it better off replacing it or just leave it , as i thought it was ok in doing the job
apparently not , lollllll
i was gonna do the tranny cooler , do u guys think is hould replace the power steering one as well
V8_MA61
what magna cooler was it what year , and how much , i got charged 22 for a nippon denso from a ford
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Location:
Brisbane
Registered:
June 2003
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 11:36
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off tp,tr,ts magna auto trans coolers. They are pretty big, probly too big for a ps cooler! 
I got 3 for free...i work at a wreckers
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Location:
south east - melbourne
Registered:
March 2004
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Re: power steering cooler..high pressure?
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Thu, 19 August 2004 22:37
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cool
god damn wreckers only have fordsand holdens here
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