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Steering box replacement


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After the fun and games of removing the old box and getting the new one on, I go to do the final bit of connectign the pipes when I find the pipe sockets are totally different :angry:

The ones on the new box are shallow and rounded at the base where the old ones are deeper and narrower

It is for a 1990 Land Rover 90 and is a 6 bolt box

Any ideas before I call up Paddock and rant?

No weekend green laneing for me now :(

edit a quick nosey around the forum and it appears that there are metric and imperial fittings.

My 90 has had a 200 tdi from a disco fitted if that would have made a difference?

old one

dsc01677kb2.jpg

new one

dsc01679op0.jpg

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A trip to your local hydraulics supplier should see it sorted with a couple of adapters, I'd be surprised if it cost you more than £10-20. You could get new hoses made up to spec for a few quid more.

so I can get metric/imperial adapters that screw in?

I found some posts on here regarding pipetek that seems to be an option.

I think what has happened is that when the TDI Disco engine was dropped in they changed the TD steering box as well to give a metric to metric hose. Not knowing this I bought a Defender 6 bolt box and got an imperial Defender box.

I am assuming the disco parts being later are metric?

Does anyone know the thread types/sizes?

cheers

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so I can get metric/imperial adapters that screw in?

Does anyone know the thread types/sizes?

Yes, most hydro places will have common adapters for popular threads, and will be able to identify the threads if you take them in (which could take a bit of effort admittedly). You may end up with a couple of adapters screwed together to get to and from the correct thread, or you may end up getting some shiny new pipes made up with the right ends so it all looks lovely and neat.

Hyphose are the guys I use, they're all around the place. There's also Pirtek (who I find less helpful), as well as any number of local places.

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Yes, most hydro places will have common adapters for popular threads, and will be able to identify the threads if you take them in (which could take a bit of effort admittedly). You may end up with a couple of adapters screwed together to get to and from the correct thread, or you may end up getting some shiny new pipes made up with the right ends so it all looks lovely and neat.

Hyphose are the guys I use, they're all around the place. There's also Pirtek (who I find less helpful), as well as any number of local places.

The plot thickens

Just tried the plug bolts from the new Box in the old on and they are the same thread, so it seems the shape of the union joint drilled in the box is different. The flanged pipe end with the o-ring can't go down far enough to seal on the sides. This also means that the threaded locking nut part can't reach the thread cut into the box.

Has anyone got any pictures of the steering box pipe end they could post?

Fear my MS Paint skills

unionsx0.jpg

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I've just had the same problem mate, but the other way around. I had to replace my pump and pipes whilst keeping the box.

The solution I found was to chop the box-ends off the old and new PAS pipes and swap them over, fitting them together with readily available flanges from a hydraulic specialist (well...a man in a barn in deepest, darkest Warwickshire with an inexplicably large collection of brass!). Cost a fiver plus the cost of the pipe.

Worked for me, although you could probably get some flexi-hoses made up for the same money. Much prettier and easier to shoe-horn into a cramped engine bay. :ph34r:

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I've just had the same problem mate, but the other way around. I had to replace my pump and pipes whilst keeping the box.

The solution I found was to chop the box-ends off the old and new PAS pipes and swap them over, fitting them together with readily available flanges from a hydraulic specialist (well...a man in a barn in deepest, darkest Warwickshire with an inexplicably large collection of brass!). Cost a fiver plus the cost of the pipe.

Worked for me, although you could probably get some flexi-hoses made up for the same money. Much prettier and easier to shoe-horn into a cramped engine bay. :ph34r:

I am speaking with NPS who provided the box tomorrow as they were meant to provide the correct box and at no point was I asked / informed about different union types. Paddock (who I got the box through) was useles and kept saying ther is only one 6 bolt bow and couln't seem to grasp the fact I have two boxes with the same code stamped on them but different union joints, they were very polite about it but the member of staff did say she didn't even know what a union was :blink: so not sure how sh could have helped anyway.

So are there names for these twodifferent union styles? One seems to be a bottom face sealing and the other a side hole sealing one.

The replacement box came with the correct rubber seals for my old box and union type again indicating the union is wrong????

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I took both pipes to Hyphose, Pirtek etc and came away with an adaptor to go from the box to a common thread, and from this back to my LR hose. They're stacked up on the box and leak a little bit but overall, job done.

The threads are actually the same, it is the hole shape at the bottom of the thread that is different.

Initially I thought I had a metric > imperial thread issue so contacted Pipetek, since then I found both box and pipe are the same thread and have doubts that the refurb boxes union is drilled correctly, unless there really are two differnet type of joint (not thread type).

I am slightly miffed as I was meant to be greenlaning this weekend so have been stomping about the flat in a bad mood all weekend :lol:

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Spoke top Martin at NPS who was very helpful and after sending some pics agreed that it was not at all normal, it looks like someone has forced in some coper washers or something to use non standard 45degree bosses or something. The ports aren't refurbished so it was not spotted before being sent to me.

instead of the 10 and 8mm bores the holes were reduced to 6mm

I have another box winging it's way to me now and will return the other one with my old one to get my deposit back

:)

Pump to Steering box

pumptosteeringpb4.jpg

Reservoir to steering box

restosteeringnr3.jpg

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