Hj47 power steering

Scott,

Been many a long year since I owned my earlier FJ40, HJ45 and HJ47's so I'm sure your research is probably a lot more up to date than my fading memory but wasn't a fair bit of the reason the diesel variants of those models had no power steering something to do with the power steering pump not having enough chassis clearance when used on the 2H engines?
When I was in the local volly bushfire brigade we had 2 light tankers. They were both early 80's vehicles ex the WA National Parks mob.
One was a petrol FJ45 with power steering and the other a HJ47 diesel with out. When a call out was on there was a rush to get into the drivers seat of the 45 with the power steering. The 47 without gave the "armstrong steering" a good workout in the tight stuff...lol.

Cheers
Pop

don,t cut an weld anything on the steering
its illegal and unroadworthy , no insurance you will have to it
certified by an engineer to ok it .
cheers mechpete

Mechpete, it has been done plenty of times on HJ47's and passed certification. What the majority do is to take a PS until from an early 60 series and modify for the 47.

Given that the early 60 series has the same frame and chassis and engine as the HJ47, it's a fairly straight fit. The only things that need to be changed / modified are:

1. right hand side engine mount replaced with a 60 mount to allow for the hydralic unit to be attached
2. dual pully system in front of engine
3. some minor body work to allow clearance for the PS unit
4. depending on whether you use the 60 series steering column or wish to retain the 40 series column, the latter may have to be shortenend slightly by a qualified mechanic or engineer.

There are numerous reputable 4wd mechanics and shops who will do this conversion and certify it. I also know a number of expereinced 40 series owners who have done this and got it past compliance.

Pop, you're correct, there does need to be some additional clearance required, however it's minor (around 2-3 inches square) of non structural engine bay chassis cut away. I suspect the main reason Mr Tojo didn't fit PS to the later HJ4's was they knew the 60 series was on the way and it wasn't worth the effort.

Actually the fiddliest bit is the dual pully and clearance on the radiator, which may need to be shifted forward a bit.

It's a bit of pfaffing around, however it's been done plenty of times and passed muster. As I said above, the frame and engine for the early 60's diesels was identical to the HJ47.

Mechpete is partly correct. If you read up on VSB4, which covers LHD to RHD conversions, you'll find the following advice and instructions (below) as regards altering steering components.

For all practical purposes and for safety and cost benefits, it's usually a lot easier and cheaper to just utilise untouched steering components that fit, rather than buggering around with major alterations to components.

Capitals are mine because this forum won't let you use bold print.

"GENERAL
Heating or Welding of Steering Components
While heating or welding of steering components such as steering connecting link, tie rods, pitman or idler arms, etc is NOT RECOMMENDED, it MAY be acceptable, subject to an engineering report being submitted, which includes comment on the following:

1. material specifications of the component to be modified;

2. specifications on weld material and compatibility with the parent material;

3. description and/or diagrams of the preparation of the component if welding is involved;

4. details of preheating if required prior to modification;

5. details of heat treatment procedure after modifications;

6. hardness testing before and after modification of the modified zone;

7. results of non destructive testing supported by a certificate issued by a NATA approved materials testing laboratory to verify that the structural integrity of the component is maintained.
All welding must be in accordance with Australian Standard AS 1554 Part 1 1985 "Welding of Steel Structures" SP (Structural Purpose) category unless a higher standard is specified."

Cheers, Ron.

When I changed to power steer on my HJ 47, I used the steering sharft from a 45, no need to cut and shut. Engine mount from a 60. I had to angle the bottom outlet on the radiator to clear double pully.

There is no cutting or mods required in the chassis, steering box is a straight replacement.

Hay Scott she looks sweet.Thank everyone for the input it will be very handy.