Corsa Power steering conversion pics

[Daxxie]

The Corsa top part comes off easy, it's just held by friction.



Then the "Tube from EPAS body". It's also a friction fit but it didn't want to come off.
I welded some nuts on it and used a pulley puller to get it out.
It's not even necessary to take it out, you can carefully cut it to length with an angle grinder.



I have cut the TR7 Column here:



The TR7 steering shaft here:



The tube was cut here:



Corsa steering shaft here



Then welded the TR7 shaft on the Corsa shaft.



The top of the TR7 steering column was welded on the piece of tube that's sticking out.



That's it!

Regarding the alignment, I just put the Corsa housing in the vice.
I spot-welded the shafts and turned them around.
I have used a Dial indicator DTI but that was too sensitive.
The slightest misalignment you see immediately and I got them quite straight.

Hope that helps!

[dursleyman]

I came across a website the other day for rallywizz.com who do all kinds of stuff including items to build electric power steering systems and they comment that the Corsa units are getting more expensive and harder to find so suggest that a Suzuki Ignis unit is the way to go. They sell all the electronic controllers as well.

[DNK]

I came across a website the other day for rallywizz.com who do all kinds of stuff including items to build electric power steering systems and they comment that the Corsa units are getting more expensive and harder to find so suggest that a Suzuki Ignis unit is the way to go. They sell all the electronic controllers as well.

For you UK people anyway
HEre accross the pond we found that the Saturn Ion and Vue , along with a GM product works too

[jeffremj]

Excellent work on this adaption.

The only downside I can see is that if the wheels are turned when the car is stationary, I don't see the rack and the joints lasting as long - the standard bulkhead bush may also be asked to take too much stress, as well.

[Mantasport]

Can someone tell me the diameters of the inner steering column and also the outer column tube (inside and out)

I have been selling the corsa C power steering conversions for a few years now and am looking to increase my range of pre-built kits. To add to the DIY kits i sell for home modification.
So i am researching the original column sizes of various classics out there to see which are a good fit for the conversion process.

[prackers]

Excellent work on this adaption.

The only downside I can see is that if the wheels are turned when the car is stationary, I don't see the rack and the joints lasting as long - the standard bulkhead bush may also be asked to take too much stress, as well.

I moved the bulkhead bush hole down 25mm and left 20mm to reduce the angle on the joints plus fitted a transit needle roller bulkhead bearing which "should" be much more up to the job, it also gave me more clearance between the column and exhaust manifold which was tight (the main reason for altering it) with the Lexus motor.