Changing from rubber unis to pot joints, have all the bits but no balls.
Can anyone tell me what size I need to order? I think they are 9/16" but need to confirm.
Thanks in advance
Brian

when i read the topic i was thinking of something diferent lol

21/32 I believe - 9/16 are too small

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did I tell you that I won a trophy?

Simon has it right,,, 21/32 for the inners(the ones at the diff)

& 9/16ths for the outers (the ones at the wheel)

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Thanks for the serious answers - I was not expcting them so soon.

I will soon have new balls

Brian

Can anyone explain why the poms, whenever given a choice, go for odd sizes?

There was nothing wrong with those sizes 30 years ago, the UK used the Imperial measuring system of feet, inches and fractions.
So did Australia until the late 60s, and USA still does too.

I'm lucky I did my trade in the 60s, I learned both Imperial and Metric.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

What is the technical reason for the different sizes?

I too did my trade in the 60s, and I still think the poms tended to overcomplicate things. Just look at their range of fasteners - BSF, BSW, BA, metric in Morris Cowleys and so on in the early days.

I guess it was en evolutionery thing stemming from the days of the industrial revolution when there was no effort at or need for standardisation.

Just makes life more interesting.

every time I go to the wreckers and find a clubby I always look for them. I have a nice stash of them now. Every time I fit pot joint one has to rollaway but I know I have many spares

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Stop Licking the Dog...I Don't Care Who Started It

that's the great thing about standards... there's so many to choose from

how about the half a dozen different metric thread pitches



you've gotta try harder than that.... way too obvious

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did I tell you that I won a trophy?

Using 12mm as an example.

The Metric folks also use a 1.0mm pitch on brass stuff as the Brits do 26TPI (brass thread) - they are near enough to the same pitch anyway.

Also, guess what pipe threads in the Metric system are (R 1/4, R 3/8, R 1/2, etc)..
Yep, good old BSP.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Equally, I love the way you have to do mental arithmetic to work out if 17/32" is bigger than 23/64", but from a certain point (derived from tangents running from Stonehenge through ley lines to the Greenwich meridian) they switch to thousands of an inch, or a de facto anglo/metric system. But then they use both fahrenheit and celsius for temp, so who knows.

sorry could not help myself

its handy having plenty of spare in a jar in a cupborard in your garage
always found when needed

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Stop Licking the Dog...I Don't Care Who Started It