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jubilee + .040 pistons

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Hi everyone , I am finding it impossible to find any new + .040" pistons to complete my engine

build . I have some +40 barrels which are very good . Does anyone know of a supplier for +40 

pistons . NOC has the +40 rings but no pistons . Any help would be much appreciated .

 

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I “might” have a pair of used +40 pistons in amongst my spares - won’t be sure until I’ve checked (Sunday probably) - would they be any use if I’ve got a reasonable pair?

Bruce

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This may seem a bit drastic but I had the same problem and in the end I had the cylinders re-lined to take standard pistons.

This company sell standard pistons.

Norton Piston - 249cc OHV (Jubilee 250), Year: 1959-66, STD (classic-motorcycles.co.uk)

I used Meridian Engineering Services in Cambridge to reline the cylinders and they were good and reasonably priced. They can supply the liners.

Home Page (meridianengineservices.co.uk)

Dennis

 

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Michael at " Meridian " is a great bloke, helpful and top work. 

I used him for my Land Rover Series One engine machining and I built it up, all perfect !

Recommended !

 

Hi Dennis , I was allways told jubilee cylinders did not have liners so could not be re-lined.

But if you have had yours done i will have another look ,if they can be re-lined it may be

my only option . Thanks for the name of the company , to be continued .

Colin.

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Thankfully i did not know that Jubilee cylinders could not be re-lined before I asked Meridian to do it! They did it and I am pleased with the result.

Dennis

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I was all ways told jubilee cylinders did not have liners so could not be re-lined.

That rule that does not exist, it all depends on the strength of the original barrel and nothing to do if it was linered from the beginning or solid. 

Good afternoon Bruce,

possibly missed the boat but I need a set of +20 pistons and saw this post. Are they still available but any chance?

kind regards Gary Last

 

Hi Gary - I’m on it but delayed in looking them out at the moment - sorry.  Hopefully next day or two then I’ll send you some pictures

Bruce

 


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