Sturmey Archer Gearbox parts wanted

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Bob.Murphy
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Sturmey Archer Gearbox parts wanted

Postby Bob.Murphy » Mon Dec 03, 2012 11:39 am

Hi,

Those with a long memory may remember me - I was a very active member in the late '60s / early 70s when I had a 'special' 4G and a VB.

I don't have an Ariel at the moment (two BMWs and a heap of Tiger Cub parts :roll: ) but I'm attempting to renovate a Sturmey Archer gearbox from a 1931 P&M Panther M50 that a friend came across in a barn in the Isle of Skye (it still cost him a fair packet to acquire it though :lol: ).

I'm told that some early Ariels had Sturmey Archer gearboxes so maybe someone has the following:

The box is a pre-'31 Type 'LS240' 3-speed hand change with the single spring clutch, no shock absorber in the clutch and a loose ball race on the output shaft drive side. The serial No. is 'PM3560'.

I'm needing an output shaft 2nd gear pinion - 20 tooth. Part No. LS403. The one I have has lost a tooth :roll: .

I'm also needing a kickstart lever return spring - Part No. BS26D.

I'll need circular clutch corks too - 5/8" and 1/2" diameter - but I can probably make those out of wine corks (pity I'm TT :shock: ).

I've also got a broken kickstart sleeve - Part No. LS262, but I'm intending to turn-up a replacement on my lathe once I've extracted what's left of the old one and know what the thread should be.

Any help gratefully received.

I'm now going to get the 'Ariel Bug' again, aren't I ;) .

Regards.

Bob Murphy

(I used to live near Taunton, Somerset but I've been in the Edinburgh area for the past 40 years).
My avatar shows the late Len Rich in 1970 with the bike I now have - a 1958 Ariel VH

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Postby john.whiting » Tue Dec 04, 2012 11:45 am

LS boxes allways seem to break second,you will be able to buy new gears from the BS club,or one of the BS specialists.I just weld up the broken teeth with stainless,and reprofile by eye with a grinder.There was a heap of Panther S/A gearbox stuff sold on aus ebay a little while ago by a fellow who makes fake Zeniths,and puts them round the snob auctions with crazy reserves [and seems to sell],obviously the laydown casing doesnt look the part.The k/s spring can be made from a Norton spring[originally a S/A].Regards John.

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Re:

Postby Bob.Murphy » Thu Dec 06, 2012 11:12 am

john.whiting wrote:LS boxes allways seem to break second,you will be able to buy new gears from the BS club,or one of the BS specialists.


Thanks John,

But, I must be getting old and my brain is befuddled . . What is the BS Club ???

I've racked the brain to no avail.

I'm sure it will be a " DOH Moment :oops: " when I find out.

Ta.

Bob.
My avatar shows the late Len Rich in 1970 with the bike I now have - a 1958 Ariel VH

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Postby brenton.roy » Thu Dec 06, 2012 12:57 pm

Brough Superior?
Hmmm,
BSeh?
Club of British Serious people?
Got it.. Broken Second club!... I win! I win!
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Re:

Postby Bob.Murphy » Fri Dec 07, 2012 10:47 am

brenton.roy wrote:Brough Superior?
Hmmm,
BSeh?
Club of British Serious people?
Got it.. Broken Second club!... I win! I win!


:lol: :lol:

I wondered if Briggs & Stratton had something to do with it.

I tried the net - I don't think British Showjumping can help.

Maybe it was just Bull-Shine ;)

(Did Broughs use Sturmey Archer boxes ?? It seems unlikely but I'll check :? ).

I'm getting into deep water with this box. It turns out that the kickstart shaft sleeve doesn't unscrew (that must have been introduced in 1931) and I have now broken the cracked sleeve off the end cover.

I'm now into some serious lathe work to make and fit a threaded sleeve.

I guess that's what hobbies are all about.

Bob.
My avatar shows the late Len Rich in 1970 with the bike I now have - a 1958 Ariel VH

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Postby Dave.Barkshire » Sat Dec 08, 2012 9:54 am

BS had special heavy duty SA boxes made for them because the normal boxes were not strong enough for George. He famously took a wagon of broken boxes to the SA factory (just down the road) to demonstrate their weakness. The special BS boxes are very rare and on ebay would cost more than Madonna's second hand diamond studded panties.

The BS club do have one of the best supplies of SA parts (and also for Norton dolls head boxes). If you join the club to get the parts, do not mention that they are not for a BS (don't ask me how I know this!).

BS used SA up until the Matchless engine era in the mid 30s when they switched to the Norton International box which itself was a development of the SA.
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Postby john.whiting » Sat Dec 08, 2012 10:16 am

Sturmey Archer made 140,000 LS gearboxes ,so you wouldnt think parts would be hard to find.Some peolple say BS stands forBrough Superior,but I have known a few owners and it also stands for something else.Seriously though,these boxes were once very common,but now people want phone number prices for them.A few years ago,I took one to the Gatton swap,and put $200 on it, very fair for a complete box and clutch.A fellow I knew with a 1928 SS100 came over and said Ill give you 20.I said allright,if you' ll sell me the bike for 500.I want $10,000 for it,he said.I swapped the box for a complete JAP KT motor with mag and carb about an hour later.The BS box was dimensionally the same as others but gears and shafts were made of better steel,and some had a larger dia mainshaft,by leaving out the sleeve gear bush.The double row ball bearing of the sleeve gear is available new.One thing to watch out for is some boxes had the studs pegged into the alloy casing.Regards John.

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Re:

Postby Bob.Murphy » Sat Dec 08, 2012 1:13 pm

Well, thanks for that, I live and learn. Apologies for being thick - I should have checked the Brough reference earlier but didn't think it was that.

I had a look at the Brough Club and almost sent a message - I'm glad I didn't now, thanks for the tip.

There's a Co. in Austria that has kickstart springs, I'll maybe go to them if I can't find anything in Blighty.

I'm having to make a new kickstart sleeve as the old one was only clinging on and fell apart when I tried to unscrew the sleeve - it doesn't on this model :roll:

I tried to link images from Photobucket but it seems they are too wide (other forums seem to manage :? ), it seems I'll have to get onto Photoshop and adjust them.

Nothing to do with Ariels - but interesting nevertheless.

Thanks for the help.

Bob.
My avatar shows the late Len Rich in 1970 with the bike I now have - a 1958 Ariel VH

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Postby john.whiting » Sun Dec 09, 2012 12:01 pm

British Only Austria may also be able to supply S/A gears,as they supply numerous unmachined parts for the fake Brough builder.They also supply the cushdrive rubbers for the Enfield wheel on your Panther.The Enfield cush drive is usually a mess as it is often run with tire pieces or rag in place of the proper rubbers.Yes Panther and BS used the same wheel.Regards John.

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Postby john.whiting » Sun Dec 09, 2012 12:11 pm

Also ,check for cracked flywheels,it very common,and often goes unnoticed until the bike is run.I have a model 70,with both flywheels cracked.Second gear is broken too.Regards John.


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