1989 110 power steering conversion

dmlsrh · Apr 26, 2022

Hi Guys
I have a 1989 110 2.5 n/a I would like to convert to power steering .
my intention is to swap the engine so the pump and reservoir would be taken care of .
The manual box is a 4 bolt can i replace it with any 4 bolt power box ie defender 300dti/ td5 , discovery 1/2 ?
will my existing drop arm and steering shaft joint fit or do more components require changing?

Thanks

Turboman · Apr 26, 2022

dmlsrh said:
Hi Guys
I have a 1989 110 2.5 n/a I would like to convert to power steering .
my intention is to swap the engine so the pump and reservoir would be taken care of .
The manual box is a 4 bolt can i replace it with any 4 bolt power box ie defender 300dti/ td5 , discovery 1/2 ?
will my existing drop arm and steering shaft joint fit or do more components require changing?

Thanks

From memory, which is distant, fortunately, there are few similarities with the system you have.
You will need another box, which I think has to come from a Ninety/One Ten, or an older Defender or Disco.
Power steering box doesn't have a drop arm, it has an arm that moves side to side, and the ball joint set up is completely different.
Power steering should also have a damper, which needs a different steering linkage to fit.

tottot · Apr 26, 2022

Funny, I thought by 89 all trucks were power steering as standard. Would also have been TD at that time. May well have been late reg of early model.

Turboman · Apr 26, 2022

tottot said:
Funny, I thought by 89 all trucks were power steering as standard. Would also have been TD at that time. May well have been late reg of early model.

Maybe ex-mil? Would explain the 2.5 NA as well.

Zed. · Apr 26, 2022

dmlsrh said:
1989 110 2.5 n/a I would like to convert to power steering

I've just done this on our '86 Ninety (tul,ffw), seen a few differences..

I used a D1 200tdi type steeringbox.
the Landrover 'keep-fit' box has imperial nut & bolt fastening to the chassis whereas the D1's pas box has METRIC bolts through the chassis into the 'box.

https://www.landyzone.co.uk/land-ro...nety-200tdi-hybrid.349799/page-3#post-5360374
my struggle (mein kampf

)
there will be more but I'm tired after work...

dmlsrh said:
The manual box is a 4 bolt can i replace it with any 4 bolt power box ie defender, discovery 1?

also believe the earlier RangeRovers of similar age to your Landy?

Rich.

Rougharse Racing · Apr 26, 2022

I used a 300tdi Discovery steering box on mine when I fitted a 300tdi engine.
You need to fit a Defender drop arm with ball joint, I don't think that the one off the manual box will do.
There is nothing else that requires changing, although some pipes may need lengthening.
I think that I will have used the fixing bolts that came with the PAS box as I had the whole Discovery to go at.

1989 110 power steering conversion

dmlsrh

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Turboman

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tottot

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Turboman

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Zed.

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Rougharse Racing

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