Help please

Paulj65

Paulj65

Member
Could any one tell me does the return hose from the power steering box run around the back or front of the engine
also the approximate length
TIA Regards Paul
 
Someone more knowledgeable will hopefully chime in, but for now here's my two pence worth! Both hoses run from the reservoir above the back of the engine in front of the heater box, then forward along the driver side inner wing. I sheepishly admit I don't know which is the supply and which is the return. Doh! One goes down in front of and below the radiator, across the inside of the front valance panel, then back into the bottom of the engine bay to the pump unit. The other goes from/to (?) the pump, up above the timing cover, and on my car through the alternator bracket, then back along the drivers side inner wing, up across the back of the engine in front of the heater box, back to the reservoir. I don't know exactly how long, but they're both really long! Couldn't find a helpful photo I'm afraid. Hopefully somebody else will!
 
mrtask said:
Someone more knowledgeable will hopefully chime in, but for now here's my two pence worth! Both hoses run from the reservoir above the back of the engine in front of the heater box, then forward along the driver side inner wing. I sheepishly admit I don't know which is the supply and which is the return. Doh! One goes down in front of and below the radiator, across the inside of the front valance panel, then back into the bottom of the engine bay to the pump unit. The other goes from/to (?) the pump, up above the timing cover, and on my car through the alternator bracket, then back along the drivers side inner wing, up across the back of the engine in front of the heater box, back to the reservoir. I don't know exactly how long, but they're both really long! Couldn't find a helpful photo I'm afraid. Hopefully somebody else will!
Click to expand...
Hi thanks for the reply regards
 
Looking at the parts book on the hoses, one hose from the pump screws into the steering box with a tube nut, so this should be the pressure supply line. The other hose FROM the box to the reservoir is attached with jubilee clips, so this should be the low pressure return line, runs straight across the rear of the engine to the reservoir. The last hose from the reservoir to the pump (does the long run from nearside to box area, then forward and across through the front valance) is also attached with jubilee clips, and must be the supply line to the pump - low pressure, if any. The pressure side can see up to 950PSI, so jubilee clips would not be adequate for such connections. Not sure why the supply hose is so long - would seem unnecessarily so - but PAS hoses can get noisy in some cases, so I am not inclined to mess with that run.
 
That’s helpful
thanks very much previous owner has moved the resovoir to the front of the car
re routed the pipes im now having problems with noisey pump leaks fluid getting too hot
so I want to put it back to stock
so any info helps thanks
regards Paul
 
Now that you say 'fluid getting hot' it makes me think the hose run through the front valance is to help cooling. MX5s with PAS have a loop of 10-12mm alloy tube up the front to cool the fluid, which would not be a bad idea - being low pressure, an alloy pipe could be spliced into the hose in the valance, connected with jubilee clips. You could even fit a small oil cooler low down in the valance just for the PAS oil, but it might restrict the flow.
 
Noise is normally due to the high pressure hose touching the body somewhere (almost anywhere or any thing attached to the body). At birth the hose had foam padding around it for part of its length but over the years they've disintergrated. You can use a length of foam household air conditioning insulation. The pipe can touch the engine, its noisy there anyway. The feed from tank to pump inlet does the three sided lap of the bay. it is attached to the steering box discharge pipe across the back of the engine, down the side then out in front of the radiator along the front lip of the guard piece (under the radiator) there should be three small holes along the front lip to mount p clips. one each end and one central. It finally loops back inside the engine bay and onto the pump inlet in one curve

Note that while the pump inlet line is low pressure it does need to be both oil resistant (not water tube) and able to take the heat without disintergrating.
 
The ATF used in most pas is not nice on the hoses, and failure is not uncommon. I had a pin hole leak in the pressure hose near the exhaust on the 928 , only saved from a fire because the hose had a sheath around it that contained the leak, and directed it down to the floor.
 
jp928 said:
The ATF used in most pas is not nice on the hoses, and failure is not uncommon. I had a pin hole leak in the pressure hose near the exhaust on the 928 , only saved from a fire because the hose had a sheath around it that contained the leak, and directed it down to the floor.
Click to expand...

I didn't know that. Ive always used ATF in my power steering and never had an issue
 
ATF is normal in many PAS systems, except some Europeans...Opels tend to use true 'hydraulic' oil, which fortunately has a very different odour, and cannot be easily confused. Dont ever mix them! As soon as you see weeping at hose connections be ready to start replacing them. I have done all the 928 hoses. Maybe the English hoses were better quality?
 
Thanks I have used atf maybe back in the day the fluid was pure hydraulic ?.
live considered this and will replace all the hoses along with the fluid
thanks for all the replies
 
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