Impreza steering rack mod

[Belle427]

TVR Stef said:

I used the coil supply for the ign signal, the pump just uses it to know the ign is on so very small current. I've had it like that for a few years without issue. Then took the engine running signal from the alternator charge indicator.

[Xcore]

Are AN fittings suitable for the high pressure hose? If not what do people recommend?

Thanks

[phillpot]

Xcore said:

Are AN fittings suitable for the high pressure hose?

Yes.

[Belle427]

Matching the pipe fittings is the trickiest part, my rack has an M16 return fitting but the pressure does not seem to be M14 as suggested earlier in the thread.
The Vauxhall pump I’m using is also M16 on the pressure line.

[phazed]

That’s why I took the rack and the pump to the specialist and let him match everything up .

[Belle427]

phazed said:

That’s why I took the rack and the pump to the specialist and let him match everything up .

I'd also advise doing this, at least you get it right first time.

[Belle427]

Just thought I’d ask if anyone had any of the 1/4 copper pipe for the rack to pinion pipes laying around, happy to pay for it.
Confirmation of the union sizes would be good too, page 11 suggests M12 x 1
Thanks.

[Xcore]

Local machine shop wouldn’t machine my pinion so looks like I’m guna have to get the file out!

[phazed]

Honestly, piece of cake.

[sparkythecat]

phazed said:

Honestly, piece of cake.

Did you originally fit a Vectra pump?
I've got one and I'm just wondering where the black white and green wires should be connected?

[phazed]

Yes, to my last chim.

Really can't remember the wiring.

[Belle427]

I would just fit the Vauxhall Astra H pump as the wiring has been proved working and listed here.
About £30 on ebay.
https://www.ebay.co.uk/itm/VAUXHALL-ASTRA-H-MK5-1-...

[phazed]

Are use the Clio/206 pump.

An old piccy.

[Belle427]

Rowge said:

Ordered another UJ from car builders solutions, this one differs from the one I purchased on ebay, as the M8 hole/Bolt engages with the 9/16 spline cut out, the original one did not until i opened it up to 10mm. the pinion end still had to be moved/opened up to M10, also found that by opening up from M8 to M10 the Nyloc nut gets very close to the chassis when rotating, so i have ordered a Titanium GR5 Nyloc nut and Bolt (35mm long), which has a smaller bolt head and nut (tensile and shear strength between an 8.8 and 10.9 steel bolt). Regarding adapters, i now have quite a collection, but hopefully have sourced the correct ones from Pirtek M16 1.5 491615/791615 aluminium or steel, and 14mm 1.5 491415/791415, so 2 off 16mm and 1 off 14mm ordered, fingers crossed that they fit.

Edited by Rowge on Tuesday 24th February 18:33

Could you link me to the titanium bolt style you used please, I have the same problem with chassis fouling even though my uj is as far down the rack as i can get it.

[phazed]

I had to grind the KA uj down so it didn't foul the chassis, trial and error!

I also drilled a second clamping hole in it.

[Belle427]

phazed said:

I had to grind the KA uj down so it didn't foul the chassis, trial and error!

I also drilled a second clamping hole in it.

Thanks, it's certainly not a straightforward swap. I'm having to nibble the rack mount gusset more than I'd like to get the pipe fittings to clear but every car must be different.

[phazed]

Yes, I had to nibble a bit away on the gusset as well.

It may sound a bit extreme but once it is done it is there for good and I have not had any problems.

[ChimpOnGas]

wuckfitracing said:

I did do a full write up with photos when I did mine last year, however my computer decided it was too large a file to send anyone and when I tried compressing it deleted it.

That's super annoying, you must have said a few choice words when the file deleted itself

wuckfitracing said:

I may get round to writing it again as I still have all the photos.

I and many others would be massively grateful if you could write it all up again, unpicking this post isn't particularly easy.

Question: Why are people using an electric power steering pump? I assume because they are converting a manual rack car so a PS pump isn't present

[phazed]

I had the standard hydraulic pump .

By doing away with the pump you get rid of the long hydraulic lines and the reservoir situated on the top of the engine. Take it all away, put a small electric pump with built-in reservoir in the corner of the engine bay with shorter hydraulic runs to the rack and you neaten up the engine bay considerably which is very pleasing to me!

[Classic Chim]

phazed said:

I had the standard hydraulic pump .

By doing away with the pump you get rid of the long hydraulic lines and the reservoir situated on the top of the engine. Take it all away, put a small electric pump with built-in reservoir in the corner of the engine bay with shorter hydraulic runs to the rack and you neaten up the engine bay considerably which is very pleasing to me!

Agreed
And here’s me thinking it’s to add 2hp to engine power