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Location:
townsville NQLD
Registered:
February 2004
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power steering for early celicas (pre 82') how i did it... pics
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Sun, 22 May 2005 05:18
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found some pics of my conversion of power steering into RA40 celica....thought some people may be interested.
the steering box is from a MX62 cressida
ra40 pitman arm goes straight onto the cressida box
MX62 steering box bolts straight in....im not sure if RA23/28 use same bolt pattern for steering box
only main problem is the box is longer....ie sits further up towards steering wheel.
one way to reduce this difference is to undo the bolt that clamps the rubber flange thing (i dont know what its called; some one fill me in) to the spline on the mx62 box. then slide the flange down as far as it goes (away from steering wheel)
by doing that, the extra length can be reduced from ~15 to ~7 mm.
to get that 7mm down to normal there is 2 methods (i only tried one so far)
#1. machine 7mm off the "shoulder" of the steering shaft at the top. this allows the shaft to slide upwards ~7mm through the top bearing. only down side of this is that the steering wheel will be sitting 7mm further back towards you face. Another problem is that the horn wire will not reach the steering wheel anymore. and; the 3rd problem is that the steering lock will not work anymore; milling another groove would probly solve this preoblem
#2. when i had the steerin shaft out, (after i machined it already  ) i noticed it is 2 pieces. one "oval" tube inside another "oval" ttube. it also has two nylon locating pins which determine the correct length. This method has been tried and aparently works fine. Anyway, my theory; if you drill out the two locating pins, slide the two oval tubes together (~7mm; i cant remeber exact length) then re drill two holes and put 2 new locating pins in, this would take away the problem of the horn/s.lock/sitting further back.
anyway i got the p.steering working in my "test" RA40 (using method #1).....it worked well.
personally though; i dont really think an ra40/23/28 needs power steering....they are light enough. once the tie rod ends are replaced they turn pretty bloody easy.
thought i would just share this though 
PS: the exact measurements i cant remeber and you would have to go on your own project's requirements
here is the pics
brett
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Location:
Melbourne
Registered:
May 2002
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Re: power steering for early celicas (pre 82') how i did it... pics
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Sun, 22 May 2005 05:55
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| brett_celicacoupe wrote on Sun, 22 May 2005 15:18 |
personally though; i dont really think an ra40/23/28 needs power steering....they are light enough. once the tie rod ends are replaced they turn pretty bloody easy.
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once you get decent width tires and a more sporting wheel alignment settings that all changes! the MA45 with stock 14's is WAY too light in the steering but add >15 inch wheels and its MUCH better
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Location:
townsville NQLD
Registered:
February 2004
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Re: power steering for early celicas (pre 82') how i did it... pics
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Tue, 24 May 2005 08:39
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shit!! i thought more people would be interested in this 
are the ra40 steering boxes the same as the ra23/28's???
when i had the p/steering working on my ra40 (experiment car) it was working awesome. it had flat 205 tyres and it still turned easy
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Location:
Brisbane
Registered:
May 2002
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Re: power steering for early celicas (pre 82') how i did it... pics
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Tue, 24 May 2005 09:45
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It's an interesting thread but I don't think many people struggle with the manual steering on early Celica's, certainly not enough to warrant the effort of a P/S conversion. I quite like the weight of my RA23's steeering.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: power steering for early celicas (pre 82') how i did it... pics
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Wed, 25 May 2005 01:16
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it's darn good info, but just not for me.
It would be hard/annoying for me to mount a p/s pump to my 18RG once i have EFI and turbo in the way....plus it's not something that bothers me even with my uber low and stiff front end with 15x7 simmons and 205 tyres....
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Location:
Perth
Registered:
May 2004
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 Re: power steering for early celicas (pre 82') how i did it... pics
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Wed, 25 May 2005 01:33
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I think this is tops. 3 years ago when I had my RA40 I would have been most interested.
I had a RA40 (`78) with 225mm tyres on it. It was a car park nightmare.
I suppose I could of put more narrow tyres on the front though 
That would achieve comparable results, more quickly.
good effort none the less mate.
cheers,
Adam
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Location:
Terrigal
Registered:
May 2002
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Re: power steering for early celicas (pre 82') how i did it... pics
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Wed, 25 May 2005 01:53
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RA40 and RA28 steering boxes are not easily interchangeable either.. The holes through the rail is spaced differently.. So this mainly would apply for RA40 people.
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Location:
Brisbane
Registered:
April 2004
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Re: power steering for early celicas (pre 82') how i did it... pics
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Wed, 25 May 2005 01:58
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Sounds good but I've got 215 on the front and i can still palm steer with great ease maybe good for someone who doing a 1j conversion.
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Location:
townsville NQLD
Registered:
February 2004
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Re: power steering for early celicas (pre 82') how i did it... pics
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Thu, 26 May 2005 07:35
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as i said before:...
| brett_celicacoupe wrote on Sun, 22 May 2005 15:18 |
personally though; i dont really think an ra40/23/28 needs power steering....they are light enough. once the tie rod ends are replaced they turn pretty bloody easy.
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my RA40 (in the avatar) turns unbelievably easy and i wouldnt bother puttin it on but other people may be interested in this
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Location:
Brisbane
Registered:
October 2005
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 Re: power steering for early celicas (pre 82') how i did it... pics
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Sat, 22 October 2005 03:31
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G'day mates. I have a mint condition silver ra40 with an 18r donk and i want to put power steering in it. where would i be able to mount the pump? my ra40 also has aircon, will that be a problem? thanks
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Location:
townsville NQLD
Registered:
February 2004
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Re: power steering for early celicas (pre 82') how i did it... pics
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Sat, 22 October 2005 23:50
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| smootra40 wrote on Sat, 22 October 2005 13:31 |
G'day mates. I have a mint condition silver ra40 with an 18r donk and i want to put power steering in it. where would i be able to mount the pump? my ra40 also has aircon, will that be a problem? thanks
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you'll probly have to make a custon bracket for the pump, wherever it will fit.
then you might need to take it to enzed and say "join this to here and that to there".
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