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Discussion Starter #1
ok i no you can somehow put a saxo electronic power steering pump on a corsa, but what im wondering is how?

there seems to be abit of play in my corsa rack (non power steering) and the tracking needs doing, i have a brand new corsa power steering rack and new track rod ends in my shed at home from an old project so i was going to fit that and i have found a saxo vtr in the local scrappers i can rob the pump of,

1. how do i test the pump on the saxo before i take it off and buy it
2. what do i actually need off the saxo apart from the pump
3. what procedure do i have to take to fit it to the corsa

i was going to mount my battery in the boot and have the saxo pump there in my engine bay, do i need hard/solid/metal pipework or certain length pipework etc to get it working and whats the best way of wiring it up? cheers jamie, p.s its a corsa sri fitted with a redtop xe on twin 45's

jamie
 

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i'm not sure whether is similar, but i used an electric pump off a Mk2 Toyota MR2, and like you say, mounted it where the battery would be (as mine's a LHD tigra it's under the scuttle panel) directly to the chassis leg on a bracket i welded up, and all you need then, is a high-pressure pipe to go from pump to rack, the rest can be jubilee clipped soft pipes (to reservoir)

I made my pipe from odds and ends of the tigra/mr2 pipes left over by welding them.

to be honest it's gonna be very fiddly, as there is no rule as to where things go, just have to measure up and weld, you may even need special hydraulic pipe fittings, so get as much as you can from the scrappy.

I'd strongly reccomend the MR2 system - i won the pump, relay (80 amps or so), the ECU's and loom off ebay for about £40 delivered, fitted a switch for the relay in my fag-tray, and it's amazing !! No leakes since, and you can turn it off for less battery drain. Only snag is it's abit weak - though to be fair i do have 7" wide 18's :rolleyes:

Also, there is really no way of knowing how good it is. You must NOT run it dry as it will wreck it. Only real way to find out is open it up and see how worn the little metal sliders are.

Also, if you're mounting your battery in the boot, you will need a very thick cable to go to the engine bay to branch off from, as the PS consumes about 50ish amps full load.:nod:

I'll take some pics of my install for you tomorrow if you want, might make it easyer to visualise what's involved.
 

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Discussion Starter #3
thats brilliant mate great help, well im going to try this saxo unit as it probably wont cost me anything, just wondering do all electronic power steering pumps have ecu's? il take what i can off the car tomorrow and then if i need anything else il have to go back, hopefully i may have a few more replies before i go tomorrow so il no exactly what to get, cheers jamie
 

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Thats cool no worries,
I'm not sure about the ECU's, i'd say that most of them if not all have them, as it's failry silly having a pump on&whining 100% of the time !!

The ECU will have speed sensor inputs (not 100% sure on the specifics), so it can switch off, or vary the intensity of the pump, so you're not wasting power when you're on the motorway etc..
And this is why i didn't bother, as i'm not sure there's no sensor to use for this input on the XE, and you can't be certain on what kind of input the ECU is expecting, so its easyest to just fit a switch for it!!

have a look through my log pics, you can see the pipe i made up, the bracket (excuse my welding skills), the switch panel and the reservoir. The MOT bloke was well impressed lmao
 

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saxo pumps are piss easy, the pumps just have a + and - wires, connect them up and the pump will work, on the pump there are 3 ports of hoses, on is the low pressure return, on is for the small resivior and on is the high pressure feed to the rack, this is the one that actually screws in, you will have to get a high pressure hose made by the likes of Pirtek or similar, for the wiring i just had mine wired up via a 50A relay and had a switch in the car wihch switched the the earth to the relay so i could turn the pump off on when on the motorway etc, also handy for moving the car about with the engine off.
 

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Discussion Starter #6
brilliant jamie nice one,

i also found this

"Power Steering on a Nova

Here's the lowdown on fitting PAS to a Nova. If you're prepared to cut into chassis rails, and fiddle about with belts to drive power steering pumps, then I've no doubt it would be possible to install a Corsa engine-driven PAS pump onto a Nova. Not only does that seem like hard work, it saps a good deal of engine power. There is an alternative - many modern cars are now fitted with electric power steering - notably Peugeot's 106, Citroen's Saxo, Renault's Clio, and possibly others I'm not yet aware of. Before I start, bear in mind that I fitted mine onto a rally car, and mounted the power steering pump INSIDE the car, underneath the co-drivers feet. For a road car, fitting it there might not suit you, particularly as it is quite a noisy little pump. Where you're going to find space for it under the bonnet of a Nova I don't know, but it can at least be mounted anyway up, so it might be feasible. The pump itself is cylindrical, about 12" long, and around 5" diameter. The parts you need are:

Electric power steering pump
From a Peugeot 106. I understand that the electric PAS pump on a Citroen Saxo is the same, I've looked under the bonnet and it appears identical, but don't come complaining to me if it isn't. Make sure you get the wiring harness with the pump, and ideally the mounting bracket, otherwise you'll have to make up your own bracketry.

A set of power steering fluid pipes
Any competent hydraulic hose supplier will make you these up to suit, and the lengths required will obviously depend on where you site the pump.

A power steering fluid reservoir
The Peugeot system is unusual in that there is only one outlet (i.e. no return flow pipe to the reservoir). If you buy from a scrapyard, try and get hold of the reservoir with its associated pipe when you buy the pump. Otherwise, you can use any reservoir you can find, but you'll have to close off the return pipe.

Power steering fluid
Make sure you get the right stuff for the Corsa rack - Castrol Dextron for example.

A Corsa power steering rack
I used a GSi one, Tigra ones are the same.

That's all the parts you require, the most important thing in fitting is that the steering arms on the Corsa rack are too long, so have to be shortened by about 1.5 inches each side, and re-threaded to take the track rod ends. The rack bolts up using the normal Nova bulkhead fixings, and you can use Nova or Corsa track rod ends. You will have to enlarge the hole in the bulkhead where the steering rack passes through quite significantly to accommodate the valve on the PAS rack, bit of a trial and error job this one. Once the hole is enlarged sufficiently, the Corsa rack will mate up with the standard Nova flexible coupling at the base of the steering column. You'll need a bigger rubber gasket to seal the hole you've now made, I've done mine with silicone sealant, probably the best solution would be to get the correct Corsa gasket. As I've said, you'll need to find a suitable home for the pump, and it needs substantial brackets to hold it in place, as it's running under high pressure. Provided you've got the wiring loom and relay that goes with the pump, it's a simple wiring job, just a 12V supply and an earth connection to wire in. I've wired mine so that the pump is running with the ignition switched on, but you might want to do it so that the pump only works when the engine is running. The pump is quite noisy, so if you end up mounting it inside the car you might have to insulate it. However, I haven't checked how hot it gets in running, so bear this in mind as otherwise it might be a fire hazard. Pipework is fairly straightfoward to install, how you run it will of course depend on where you put the pump. Basically you've got a feed pipe from the fluid reservoir to the pump, then a high pressure outlet from the pump to the bigger of the 2 unions on the rack, then a return pipe from the rack to the pump. I mounted the reservoir on mine in the area where the wiring loom passes throught the bulkhead on the passenger side. Fill the reservoir with fluid, and then you need to bleed the system of air. As it's an electric pump, you just need to switch the electrics on and off until the pump stops making any 'bubbling' type noises. Make sure you've got no fluid leaks anywhere, and that's the job done. Obviously you'll need to get the tracking re-set. The improvement this conversion makes is just amazing, it would be impossible for me to go back to the manual steering now. It took me a couple of days or so to do in total, but this was without knowing exactly what had to be done. Hopefully with the aid of this guide it could be achieved in a day."
 

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they saxo/106 pumps work really well, ive fitted one to a calibra turbo with 19" wheels and it was fine, suppose the fench had to get one thing rightlmao
 

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Both pumps in the link are basically the same, but the 1st has an integral reservoir.

Mine is like the 2nd, which has a lower mounting depth due to not having a tall filler neck.

My pump is on a Nova in the old battery tray. I had my hoses made by a local hydraulic specialist for approx £70. I suggest you take the pump & rack into your pipe man & have measurements for how long the pipes need to be etc.

I havent mounted my pump yet but will be using external house gutter brackets to hold it down with long jubillee clips.
 

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i'm not sure whether is similar, but i used an electric pump off a Mk2 Toyota MR2, and like you say, mounted it where the battery would be (as mine's a LHD tigra it's under the scuttle panel) directly to the chassis leg on a bracket i welded up, and all you need then, is a high-pressure pipe to go from pump to rack, the rest can be jubilee clipped soft pipes (to reservoir)

I made my pipe from odds and ends of the tigra/mr2 pipes left over by welding them.

to be honest it's gonna be very fiddly, as there is no rule as to where things go, just have to measure up and weld, you may even need special hydraulic pipe fittings, so get as much as you can from the scrappy.

I'd strongly reccomend the MR2 system - i won the pump, relay (80 amps or so), the ECU's and loom off ebay for about £40 delivered, fitted a switch for the relay in my fag-tray, and it's amazing !! No leakes since, and you can turn it off for less battery drain. Only snag is it's abit weak - though to be fair i do have 7" wide 18's :rolleyes:

Also, there is really no way of knowing how good it is. You must NOT run it dry as it will wreck it. Only real way to find out is open it up and see how worn the little metal sliders are.

Also, if you're mounting your battery in the boot, you will need a very thick cable to go to the engine bay to branch off from, as the PS consumes about 50ish amps full load.:nod:

I'll take some pics of my install for you tomorrow if you want, might make it easyer to visualise what's involved.

Hi mate, I am new to the forum and registered after reading your above post after a Google search. I hope you dont mind me asking but how do you wire up the pump. I too have just bought a complete MR2 kit from e-bay (everything for £100 http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWNX:IT&item=200285738433) but have no idea where the wires on the relay and the pump go. Would you be able to get me info? I have looked at the pictures you have linked to but I cant for the life of me work it out. I'll be ok fitting the hardware and connections so its basically only the wiring that is needed.

Any help will be greatly appreciated.
 

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Live to the relay (obv)
Use a trigger live from the terminal on the alternator (black/red trace - on a Nova) which will switch on the pump when the alt is charging.
2 x earths IIRC.
 

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I am really no good at the electrical stuff. The pictures below are what I've got to deal with. I probably sound like a retard :doh: but could you tell me to what colours the relevant connections should be ie what colour wire should the live to the relay be connected to etc?



 

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The 2 main power wires on the pump are necessary obviously.
No idea what that other loom does but it only needs power 12v & earth) to run.

Get a 4 pin relay (50amp) to run it off. Run a power wire from battery to the relay, a switched trigger live from the alternator & then earth it.
 

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The 2 main power wires on the pump are necessary obviously.
No idea what that other loom does but it only needs power 12v & earth) to run.

Get a 4 pin relay (50amp) to run it off. Run a power wire from battery to the relay, a switched trigger live from the alternator & then earth it.
Ok, I think i've got it. I'll get myself a new relay and wire it up as you say.

thanks
 

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hi mate,
much easyer than it looks - on the toyota relay there are 4 wires. the 2 small ones 'activate' the relay. Doesn't matter which is pos and which is neg, will work either way. The toyota relay is better than most universal ones, so stick to it :)

Then the 2 big ones on the relay: one goes to battery live, the other to one of the 2 big cables on the pump. Again, the polarity shouldn't matter as it's a DC motor.

then the 2 big ones on the pump: one as mentioned above goes to one of the relay's big ones, the other goes to the chassis - the nearest good earth point will do fine!

then leave the little ones from the pump unconnected - these are to connect to a dash light for worn brushes inside the pump normally, but i've no idea how to wire this.

with this configuration, the pump will be on when relay is activated, so you need to put a switch on the live wire to the relay.

ill try to draw a diagram in a bit for you :beer:
 
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