Alternator/power steering combo?

unideck, Oct 15, 9:06am
Anybody know of a 12v 80 amp (approx) alternator power steering combination pump - as in all in one unit. I remember old Jaguar and US cars had them but wondered if any modern jappa would use them. Just working out an easier way to convert a truck to power steering, have the rest sorted but not the pump part and space is kinda limited with the pull area :)

ml6989, Oct 15, 9:22am
I remember as an apprentice many moons ago, the Wolsley 1800 or one of it's kin folk i.e the Van den Plas or something as ugly, had the altenator / powersteer all in one. I doubt if it would have been 80 amps though. I also have recollections of them stripping the splines or cooking the armature and parts back then were like rocking horse poo. Probably not much help to your question but a bit of a trip dowm memory lane is always good! Good luck Unideck.

sr2, Oct 15, 9:23am
Holden Astra, Mr2, Mini cooper. etc.

My preference would be to just fit an electric power steering colum, check out.
http://www.ozgemini.com/forums/tech/viewtopic.php?t=20362

intrade, Oct 15, 9:24am
i doubt you will find mutch , modern cars have moved away from hydraulic power steering , to electric power assist, electric motors flanged to steering rack or steering colum for power steer function.
i calibrated the one on the holden berina. you can calibrate it for the combo van also in my scantool on my phone .

intrade, Oct 15, 9:29am
you cant just bolt that on the computer controlls that with torque sensor and all read my post that was exactly the unit i calibrated.
the steering had about 1/2 a inch virtual play its why i calibrated it and then it had 0 play

sr2, Oct 15, 9:43am
Rubbish mate; there is a multitude of a easy fixes out there to control them (Google is your friend); it's being done all the time.
We just had a MR2 pump fitted to my brothers DeTomaso resto project and almost every 2nd Escort Rally replica being built has an electric steering column.

I respect your contribution to this MB mate but you've just got to get over your phobia of modern automotive electronics!

Edited to say I'm looking at fitting an Astra electric column to my latest old school resto project.

http://oldschool.co.nz/2011/forum/index.php?/topic/49842-sr2%E2%80%99s-1947-vauxhall-%E2%80%9Crigamortice%E2%80%9D-build-thread/

Plan is to fit an active hall effect sensor to the drive-shaft to have the p/s progressively speed controlled. i.e. High assistance at low speed and very little on the open road. Should be a blast in a car that's almost 60 years old!

jmma, Oct 15, 9:53am
Might want to check your maths?
Might be nearly 70 (o:

sr2, Oct 15, 9:55am
Oops; Mrs sr2 calls it "al-Simon's disease"!

llortmt, Oct 15, 9:06pm
Intrade is the perfect example of 'you don't know what you don't know'.
I love (read hate) the way he assumes everyone else is a moron, sometimes his best diagnostic tool would be a mirror!

sr2, Oct 15, 9:34pm
Don't underestimate our intrade; opinionated he may be but he's a very experienced mechanic who makes a huge contribution to this MB.

A little diversity in opinions and some robust debate makes life much more interesting!

intrade, Oct 15, 9:53pm
To be fair I did not look in to how the electric steering is controlled on my scantool1 it shows torqe load and I calibrate it by executing the programming in my scantool1 and by moving the steering so it seems quit complex how it operates and needed to be calibrated. To remove the play .
Anyhow the net is also full of people driving on water with a coke bottle wired to there alternator so until I would research this as possible or not I can't comment any further .a yea the coke bottle ones are moron dreamer I know that for sure.

sr2, Oct 15, 10:15pm
LOL; It's pointless to try and reinvent the wheel mate.
Most of the guys running aftermarket electric p/s use a controller from these guys.
http://www.rallywiz.com/Shop/power-steering-control-units.html

chas10, Oct 15, 10:37pm
My Mazda Titan has the p/steer pump mounted on the back of the alternator ( though its 24v)

mrfxit, Oct 15, 10:46pm
Are you sure thats not just a vacuum pump for the brakes (diesel engine)

serf407, Oct 15, 11:15pm
By 'truck' are referring to a Kenworth or a hilux sized lorry?
The newer Silverados have electric power steering
http://www.nexteer.com/technology/steering/electric-power-steering/rack-assist-electric-power-steering/ My choice would be seeing what PG Hydraulics or Hyspecs (east tamaki) would suggest rather than using old crashed parts. There is often a way of putting a double pulley on an alternator or double pulley on the hydraulic pump (mount into the existing alternator position) and find a new place for the alternator.
http://www.qualityaircraftaccessories.com/aircraft-hydraulic-pumps-and-power-packs
Airplanes have small electrically driven hyraulic packs.
For hydraulically assisted steering you would be looking for the truck equivalent of this. Keeps the mechanical steering, so if a hose blows you still have steering.
http://www.vapormatic.co.nz/images/Documents/Technical%20Bulletin/ENGLISH/VPJ4045.pdf

intrade, Oct 15, 11:17pm
anyhow back to what he actuarly asked . the only thing i would look in to how fork hoists make there power steering work.
good research options serf407
and question you asked i also was thinking what is this truck big small. etc
probably small if it has no room

serf407, Oct 15, 11:45pm
With the nexteer you would want a right hand version if the truck is right hand steer.

serf407, Oct 16, 12:15am
Could go double hydraulic pump - one pump for the hyraulic power steering and second to drive a hydraulically driven alternator mounted elsewhere.
http://boden-hyd.en.alibaba.com/product/731645170-213755432/Double_Hydraulic_Gear_Pump.html Rally Quattro S2 had the alternator in the rear of the car. http://www.eaton.com/Eaton/ProductsServices/Aerospace/Hydraulics/PCT_249145

serf407, Oct 16, 9:50am
Also Hamilton way
www.truckpartsnz.co.nz for power steering boxes.

unideck, Jan 30, 12:31am
Hey cheers guys. Im not going with anything like electric steering sorry. Looks like an ebay deal to me then for an old Chevy part :)