Help needed regarding removing track rods off steering rack
Help needed regarding removing track rods off steering rack
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Ireland

Original Poster:

3,517 posts

243 months

Wednesday 22nd June 2011
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I've been stripping down my old (leaking) steering rack and I'm as far as removing the track rods off the steering rack ..... and I'm stuck eek

I can't shift either of the track rods off the ends of rack.

I've put the spanners on the slots and tried turning the ends (both directions) but nothing is shifting.

Do both ends come away from the rack (I guess they must do) and are they LHS thread or RHS thread (or one of each)?

I can see from the marks on the body of the rack and on the track rods that the rack has been apart at some stage in the past so there may be some sort of thread-lock used on it.

Any help would be much appreciated. smile

PoleDriver

29,587 posts

223 months

Wednesday 22nd June 2011
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They are left/right thread at each end, sounds like they have thread lock on as mine were quite easy to loosen. Tried heat?

Ireland

Original Poster:

3,517 posts

243 months

Wednesday 22nd June 2011
quotequote all
Do you happen to know which one opens LHS and which one RHS by any chance?

I'll use heat if I have to but I haven't tried it yet.

PoleDriver

29,587 posts

223 months

Wednesday 22nd June 2011
quotequote all
Can't remember off-hand, I looked at the end of the thread to work it out! If it's just thread-lock I've found a heat gun works fine, and is safer than a blow torch. Normally just a quick application of welly to the spanner is enough to break the seal though!

Ireland

Original Poster:

3,517 posts

243 months

Thursday 23rd June 2011
quotequote all
How do you mean look at the threads?

Do you mean the threads at the outer end where the track rod ends are fitted are the same direction as the inner end threads?

Brummmie

5,284 posts

250 months

Thursday 23rd June 2011
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Ireland said:
How do you mean look at the threads?

Do you mean the threads at the outer end where the track rod ends are fitted are the same direction as the inner end threads?
Look at the exposed thread, and see which way the screw has been cut.

PoleDriver

29,587 posts

223 months

Thursday 23rd June 2011
quotequote all
Brummmie said:
Ireland said:
How do you mean look at the threads?

Do you mean the threads at the outer end where the track rod ends are fitted are the same direction as the inner end threads?
Look at the exposed thread, and see which way the screw has been cut.
yes Thank you!

plasticman

908 posts

280 months

Thursday 23rd June 2011
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I have never seen a rack with different thread directions on each end . They have all been normal direction but usually very tight so do it in a vice or still on the chassis .

Basil Brush

5,615 posts

292 months

Thursday 23rd June 2011
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The track rods don't look to be handed according to the replacement places.

Boosted Cerb

556 posts

260 months

Thursday 23rd June 2011
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Track rods are not handed. Both right handed threads(Thread into the rack)

The rack I've got in bits has thread lock on the threads so thats probably why its tight.

Still meaning to get some pics up of the rack totally dismantled rolleyes

Rich.

Edited by Boosted Cerb on Thursday 23 June 16:50

Ireland

Original Poster:

3,517 posts

243 months

Thursday 23rd June 2011
quotequote all
Thanks.

Hopefully I'll get a chance over the weekend to see if I can get it apart.

julian64

14,325 posts

283 months

Friday 24th June 2011
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Need to bookmark this thread. Especially if someones going to post pictures of a stripped down rack.

When I was looking at doing this the seals were nigh impossible to source so I have been putting up with a slight weep for some time now.

All I need is someone to post locations/prices and I think I'll hae a go.

Boosted Cerb

556 posts

260 months

Friday 24th June 2011
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julian64 said:
Need to bookmark this thread. Especially if someones going to post pictures of a stripped down rack.

When I was looking at doing this the seals were nigh impossible to source so I have been putting up with a slight weep for some time now.

All I need is someone to post locations/prices and I think I'll hae a go.
This not good enough for you then Julian?? smile

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Regard seals, I just use my local Brammer UK ltd branch, I bought the two seals for the distribution head and the one for the nearside of the steering rack, can't remember having trouble finding them???

I'm sure you know, you just need the 3 dimensions to source them. Inner, Outer and thickness.

http://www.brammer.co.uk/default.aspx

Rich.

Ireland

Original Poster:

3,517 posts

243 months

Friday 24th June 2011
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I'm taking pics as I go and I'll start another thread once I (eventually) get the job done.

julian64

14,325 posts

283 months

Thursday 30th June 2011
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Sorry Boosted I came to this thread after a while and didn't realise you'd done one.

Still very interested how you managed to get the final seal out of the rack. Unfortnately its that one thats leaking on mine.

If one was to damage the outer end of the rack behind the seal in order to get purchase would it affect the function of the rack after.

If you couldn't get purchase of any sort there are only three options I could think of. This assumes the body of the rack is aluminium and the seal is steel. These are methods I've sucessfully tried i similar circumstances down long black holes.

1) mount the whole rack on a long throw mill or lathe and actually machine it out. This would be problematic in the case of the TVR, because one false move and the seal would become the cutter for the aluminium, although I've done this before a number of times in a lesser hole. As long as you go slow with a very very sharp cutter it mostly works.

2) I have access to liquid nitrogen. On a number of occasions I've stuck stuff like this in the oven in my garage, and heated it up to about 60 degrees. Ive then poured liquid nitrogen (-198) down a metal tube in contact with the seal. Most of the time the differential in temp between 60 and -200 is so large the seal will fall out. This sort of differntial does have the ability to crack castings though so always a risk. To give you an idea of how effective this is, you don't need any more than finger pressure to do wheel bearings on cars!

3) The christ almighty method. You get a steel bar of a similar diameter to the central steel opening of the seal. You pu the steel stick into the rack down through the seal. You pass a dirty great current through the stick with the rack earthed. You can potentially do this with a simple car battery, but I did it with a tig welder attached to the stick. The stick becomes the electrode and welds itself to the seal. It wwould take a few pages to describe the possible pitfall of this but with a tig welder you can slowly ramp up the current till you spot weld the stick to the seal. In this case the fact the rack is aluminium is slightly protective for the rack.

I rekon one of those would sort the job, possibly a combination of 3) then 2).

Still would be interested to hear if you managed it.

Ireland

Original Poster:

3,517 posts

243 months

Friday 1st July 2011
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Life has got in the way of me getting any further with this job and it's unlikely I'll get near it this weekend either.

I'll update whenever I get it done.

julian64

14,325 posts

283 months

Friday 1st July 2011
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Well if or Boosted did manage it I wonder if you would be kind enough to post the place and part numbers of the seal for eas ordering.

Selfish I know, but it would be nice to order everything in advance of taking it apart to save on downtime of the car.

Its so lovely driving it in this weather

julian64

14,325 posts

283 months

Monday 4th July 2011
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bump for the new week