Impreza steering rack mod

Impreza steering rack mod

Author
Discussion

Belle427

4,225 posts

183 months

Tuesday 26th February 2019
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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.
thumbup

Xcore

543 posts

40 months

Thursday 28th February 2019
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Are AN fittings suitable for the high pressure hose? If not what do people recommend?

Thanks

phillpot

15,501 posts

133 months

Thursday 28th February 2019
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Xcore said:
Are AN fittings suitable for the high pressure hose?
Yes.

Belle427

4,225 posts

183 months

Friday 1st March 2019
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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

18,581 posts

154 months

Friday 1st March 2019
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That’s why I took the rack and the pump to the specialist and let him match everything up .

Belle427

4,225 posts

183 months

Friday 1st March 2019
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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

4,225 posts

183 months

Monday 4th March 2019
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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

543 posts

40 months

Saturday 9th March 2019
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Local machine shop wouldn’t machine my pinion so looks like I’m guna have to get the file out!

phazed

18,581 posts

154 months

Saturday 9th March 2019
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Honestly, piece of cake.


sparkythecat

7,122 posts

205 months

Saturday 9th March 2019
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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

18,581 posts

154 months

Saturday 9th March 2019
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Yes, to my last chim.

Really can't remember the wiring.

Belle427

4,225 posts

183 months

Sunday 10th March 2019
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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

18,581 posts

154 months

Sunday 10th March 2019
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Are use the Clio/206 pump.

An old piccy.


Belle427

4,225 posts

183 months

Monday 11th March 2019
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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

18,581 posts

154 months

Monday 11th March 2019
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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

4,225 posts

183 months

Monday 11th March 2019
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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

18,581 posts

154 months

Monday 11th March 2019
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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

9,193 posts

129 months

Tuesday 12th March 2019
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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 weeping

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 scratchchin



phazed

18,581 posts

154 months

Tuesday 12th March 2019
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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

9,917 posts

99 months

Tuesday 12th March 2019
quotequote all
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 thumbup
And here’s me thinking it’s to add 2hp to engine power wink