Jampot rebuild

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Stan Palmer
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Joined: Tue May 27, 2008 2:19 pm
Location: SURREY UK

Jampot rebuild

Post by Stan Palmer »

Bike is 16MS 1953. Can somebody recommend a rebuilder for jampots. Need new outer tin covers and chroming of lower covers and general polishing as well as basic rebuild.

Also, front fork tubes are slightly bent where they pass through the lower crown, is there an allowable tolerance ?

Also renovator for fuel tank with some dents, lining and petrol resistant paint.
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TommoT
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Location: DENMARK

Jampot rebuild

Post by TommoT »

I may be wrong, but a dedicated jampot rebuilder will be difficult to find.

A bit like the Monty Python sketch where you watch a bloke riding along on his bicycle in a completely deserted landscape. After about 5 minutes where absolutely nothing has happened, and you're about to zap away to another channel, suddenly you hear a big bang. It turns out his rear tire has punctured. He patches the tube and pulls out the tire pump. But it doesn't work, no air coming out when he pushes the handle. The camera then pans slowly away from our hero, at about 180 degrees a large building emerges on the screen. On top of it there is a sign saying: Bicycle Pump Repair Shop! One of my favourites!

On a more serious note this is a typical DIY job, where you can buy most parts at Jampot Spares Ltd. and then do them up in the shed. If this is out of your league, you will have to look up the established restoration businesses or maybe a friend or a friend of a friend, etc.. There are various instructions, hints and tips in Tech. Articles section of this website.
TommoT

Ride Your Motorcycle As If Your Life Depended On It - Cos' It Does!
lawrence
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Joined: Mon Jan 01, 2001 12:00 am
Location: NORTHAMPTONSHIRE UK

Jampot rebuild

Post by lawrence »

Hi Stan
It is worth popping along to your local section and introducing yourself. Bound to be someone there who has done it.

If your stanchions are bent I, personally, would definitely replace them. Without doubt. They hold the front wheel on!
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bjork
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Location: LEICESTERSHIRE UK
Location: Leicestershire

Jampot rebuild

Post by bjork »

quote:
Bike is 16MS 1953. Can somebody recommend a rebuilder for jampots. Need new outer tin covers and chroming of lower covers and general polishing as well as basic rebuild.

Also, front fork tubes are slightly bent where they pass through the lower crown, is there an allowable tolerance ?

Also renovator for fuel tank with some dents, lining and petrol resistant paint.


Hi Stan, best get yourself down to the Surrey section meet. Either there will be someone there to do the job for you or talk you through it. As Lawrence and Tommo said the bits are available from the club and there are write-ups in the tech. articles pages to guide you. Phew! you're lucky Biscuit is not on-line this week!

Fork tubes are available new from JSL as well, I agree with Lawrence of Middle England about straightening them-they are a good few years old already so are best consigned to the 'come in handy' pile or the residents security armoury. They make great handles for special tools as well.

As for your tank, it depends whether you're looking for a supplier of materials for Diy repairs (eg Frost Automotive) or a specialist who will do the whole job for you (mostly, in the arm and leg territory) plenty of those too, but best use one from a personal recommendation, so club night looks a good idea again!

No, I'm not from Surrey and I've never heard of South Godstopne either?
Using yesterdays technology to create tomorrows problems today
Charles
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Joined: Fri Jan 01, 1999 12:00 am
Location: BERKSHIRE UK

Jampot rebuild

Post by Charles »

Stan, The next Surrey Section meeting is Thursday 7th August at The Foley Arms in Claygate; I shall not be there myself as i am at a festival though as all mine have Girlings, I would not have been a lot of use either.

Not often I say this but Jim at JSL is aware of this; if the stanchions required are for 1 1/4" forks, then I recommend purchasing them from Russells. I have had a set from them and from JSL. The finish on the pair from Russells is far superior as they are ground in one go whereas the finish from the supplier for JSL (admittedly 18 months ago) was ridged and rough; obviously not ground in one go and with a badly dressed grinding surface. It is worth paying the extra for the bronze bushes whilst you are doing this maintenance.

I have had success with Petseal for 3 tanks but do make sure you remove the taps and put a bolt through to block the holes.

Petrol resistant paint - let me know if you find any please. I have tanks with paint damage around the cap where a tank bag has been left on overnight in the warm and just the vapours trapped under the bag remove two pack paint and primer, right down to the bare metal.

Good luck and hope to see you at the Foley one night.

regards
Charles
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