Welcome to the BB DouglasJet, that is an absolutely beautiful Junior and an exceptionally clean garage...

Is your steering box the Burman or ZF one and I presume LHD ??

Ciao
Greig

 

Thank you. It's a Burman.

 

Balls should all be 9/32”. I believe 54 in total.

 

Yes, that's what I thought too, but the worm gear is different from the other one. The groove/race is wider to take the larger balls. Hence the questin.

 

@DouglasJet , ask @gprocket

https://www.alfabb.com/threads/burman-box-rebuild.152689/?post_id=761118#post-761118

 

Thank you! I read all 26 pages and found two gents who have had the same experience. They ended up with 27 large balls in the worm gear, so it seems like i'm one short. At least we are now three in this exclusive club.

 

perhaps a previous owner used the larger size in an attempt to remove slop?

 

No, as I wrote, this worm gear is different from the previous. It's not possible to put larger balls in the worm gear, due to the two channels are to small.

 

So Doug, have you answered your own question? I have learned something as I have never seen such a Burman. Are you sure about the ball diameters as the boxes were built, as far as I know, in the UK so might be English units.

Ken

 

Sounds like there were some oddball (GET IT? ) Burman boxes out there. I wonder if there's any commonality in year those cars were built?

I'm sure the boxes are all English units. The standard balls are 9/32" (~7.1 mm) and it sounds like Douglas's box has a nut with 5/16" (~7.9 mm) balls in it. Here in the US they're both available from McMaster.com for not very much money but I'd assume they're a bit harder to come by in Europe.

 

I have placed an order for 5/16 balls which I belive is the correct size. I have no idea what car and model year this steering box originally came from, so I'm afraid it will remain a mystery.

 

Please share more about the project ? In Sweden ?