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Post by Zed. on May 1, 2019 16:33:16 GMT
That's a huge chunk of metal to find a home for, is there room above or below the column support? the photo's are from 'below' so the eps motor will be below the dashboard (ish) on the clutch pedal side / above the drivers left leg, I'm hoping that it will not need dashboard cutting... also, it is possible to turn the column to position the motor anywhere so maybe 'top' mounted sorta above the throttle pedal / drivers right leg  looks to be able to retain impact- collapsability in case of emergancy  Rich. |
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Post by Zed. on May 5, 2019 14:54:32 GMT
so, no progress but progress.... curiosity had a visit  so ebay (again) & £26 later a Corsa 'C' eps column was on its way... actually think this is an easier column to work with (slightly) as the wiring is easier & well documented with many choices of sensativity controllers available (~£18 on ebay?) Bench-tested the column with the rack-end in the vice to provind e=the torque diferential..... it works also, the top of the column's shaft is splined onto the motor-shaft for accident safety BUT this allows a new top-shaft to be made to hybrid a mazda steeringwheel spline onto the Vauxhall column. sorta..... Rich. |
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Post by Zed. on May 5, 2019 15:14:47 GMT
Vauxhall / Opel Corsa 'C' EPS column  testing on bench.  seperate wheel-boss splined section.  compared to a 1990 mx5 column (amongst the clutter....) Rich. |
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Post by Zed. on Feb 15, 2020 19:11:36 GMT
Thread reserection time, more coming soon...
Rich.
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Post by howardb66 on Apr 16, 2020 13:55:33 GMT
I find the standard Hydraulic system really good.
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Post by Zed. on Apr 16, 2020 20:05:23 GMT
I like the oe hydro pas system, its on my 1990 car and is lovely whereas my 1991 car had the pas removed (& replaced with a standard manual rack  ) so it's something I can either retro-fit or play with an adjustable-sensitivity electric system  as it happens, I've been playing with a Vauxhall Corsa 'B' eps column today & can report they have the same steeringwheel spline as the NA / NB Mx5 Rich. |
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EPS....
Apr 16, 2020 21:06:00 GMT
via mobile
Zed. likes this
Post by dadbif on Apr 16, 2020 21:06:00 GMT
The only time I have ever had a power steering failure in many tears of motoring was last year in Spain, when my Citroen electric PAS packed up, 1k euros for a replacement (non serviceable).
There are pros and cons...Worth a fiddle though 😜
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Post by martiny on Apr 16, 2020 21:58:21 GMT
I hesitate to say it but the only* car I've ever had with unreliable PAS is the only one I've had with electric PAS: our little Fiat Panda, where the PAS controller is really fussy about battery voltage and if it hasn't been driven for a few days it always clicks out of action as the volts drop. Always at the same place too, regular as clockwork. That bit by the station, you know, at the roundabout. Took me ages to work out why. The car's been driven for a couple of minutes and is starting to warm up, so the idle revs are dropping, and then there's a bit of road where you're coasting downhill to a junction. Engine slows down, alternator struggles, volts drop, click. And the really bad thing is that usually it doesn't just stop assisting, it actually fights against your turning the wheel. Talk about bad design; that's not a failure mode which should even be possible.
*Okay, my first Roadster did develop a little fluid leak from a rusty cooling pipe but it didn't stop working.
<edit to add> Actually that's not even the thing I meant to post about, I just went off on one, sorry. What I meant to say was that the "everyone" who removes their stock PAS seems to be everyone on the Nutz FB page. Mostly led, so far as I can tell, by drifters who boil their PAS fluid, but then followed by everyone else who fears boiling theirs, for some reason.
(It's a bit like the "everyone" who know that stock radiators are prarrie canoe (because they turn brown and burst after just 25+ years) and you need an eBay ally one instead (although nobody knows if they can last anything like as long)).
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Post by Zed. on Apr 16, 2020 22:08:52 GMT
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Post by martiny on Apr 16, 2020 22:30:39 GMT
Very much looking forward to seeing what emerges. And glad to hear the Corsa parts aren't as highly strung as the Fiat ones.
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Post by Zed. on Apr 18, 2020 19:32:12 GMT
okey......  l-r. Hyundai I10 Corsa 'D' Corsa 'C' Corsa 'C' Corsa 'B' I've fiddled with all of them but the Corsa 'B' is new to the mx5 equasion (mostly as they sell for upwards of £100 due to being easily adapted to fit nearly everything as well as being commonly used in mk1&2 Escort rallycars  )  another view.  the Corsa 'B' column with a mk1 mx5 column, looks to be an easy conversion. Corsa 'B' & 'C' run similar eps 'ecus' so wiring & controller inputs are identical......  interestingly the Corsa 'B' column uses the same spline as an Mx5 (& mk1 escort..)  this is an Ebay sourced eps controller, replaces the donor cars vss for eps sensativity and allows adjustment of the assistance from almost none to a lot (technical terms ) I'll be having a mock-build tomorow, more to come... Rich. |
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Post by Zed. on Apr 18, 2020 19:34:15 GMT
also, mk1 & mk2 (NA & NB) Mx5 have diferent columns...
Rich.
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Post by Zed. on Apr 19, 2020 20:53:24 GMT
 Corsa 'B' eps column and mk1 mx5 column.    the top test-modded.  mx5 column top section cut short (& squared on the lathe).   window reliefs cut to allow access to the mount bolts.  the Corsa column top (outer tube / flange) cut & machined to spiggot (& centralise) into the Mazda column top.  the Corsa shaft, the splined section is splined & rollpinned to the eps mainshaft (believed done @ manufacture). also, looks like the Mazda steering lock will align with the slot in the Corsa shaft.  the powered 'output' end. the shaft is a 19mm diameter round with a pair of flats machined into it.  oddlu enough, the Mazda 'lower' column inner shaft is also a 19mm diameter round with a pair of flats machined into it I've used a section of the Mazda 'upper' column inner to trial-fit on the eps output shaft.  tomorow I'll look into the output shaft & how to join the pieces, I might drill&pin to the eps output & drill&pin and weld the sleve to the lower shaft (to be cut short to suit) and stitch-weld the outer column top sections. one minor annoyance is that the Mazda column top bearing has a larger inner-diameter than the Corsa shaft so I've got to machine a thinwall sleeve or find a diferent bearing to fit more to come... Rich. |
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Post by Zed. on Apr 21, 2020 19:58:12 GMT
okey, no photos... I've tack-welded a test togther & trial fitted... I'd measured slightly long  by a few mm  anyway, it sorta fits (need to shotren the lower link shaft a few mm as it's tight to assemble) and we have electric power steering assistance not driven but with the car static it is a one-handed wheel rotation unlike before will adjust & re-fit tomorow & report... Rich. |
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ianc
New Here
Posts: 44 
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Post by ianc on Apr 21, 2020 20:30:12 GMT
Wow, that's impressive hope it works well after the refit.
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so ebay (again) & £26 later a Corsa 'C' eps column was on its way...
) so it's something I can either retro-fit or play with an adjustable-sensitivity electric system 
)
)
le sigh