piston bolt size for speed kit?

I went to order my kit today from 50cc.nl and he asked me if the piston to my 1975 Puch Maxi S is 10mm, or a 12mm bolt or a 12mm needle bearing. If it is 10mm I will have to buy a new crank does anyone know. Please help. He is talking about the bolt that holds the piston on correct.

Re: piston bolt size for speed kit?

he is talking about the metal tube that holds the piston onto your crank shaft

Re: piston bolt size for speed kit?

would you happen to know what size a 1975 Puch Maxi S 2hp 1speed may be

what's in a name ??

Wait a minute.. is this CASEY Casey ?... or is this casey Casey ?

I don't know the answer... and it is not called a BOLT or a TUBE... it is called a...... - Wrist Pin - ..... (much trumpeting and fanfare... the crowd goes wild !).

(and NO.. we are not acting all snooty like the Brits and calling it a Gudgeon Pin!)... ; )

If this is CASEY Casey... change your name to CaseyG... or CaseyPA.. or something like that.

But all you brians and daves and marks ought to add a last initial to your name... better yet... add your states abbreviation.... that puts a 'lock' on your ID in the minds of readers... to help remember who is who.

There's mikes and brians here that I have no idea who they are or how many there are.

** I can say that cuzz there's not many Freds around.**

Re: what's in a name ??

Sorry about that I forgot to capitalize it. Try not to happen again. Should I just measure the pin behind the piston and would the manual tell me.

Re: what's in a name ??

david f martin /

Fred, there are five people where I work. Two Steves, two Daves, two Munseys, and a NOXON (spelled the same backwards, forwards and upside down). Mike is the odd man out.

david

Re: what's in a name ??

noxon is a kind of metal polish, works GREAT on chome!

-Garret

Re: piston bolt size for speed kit?

woops, CHROME! bad spelling!

-Garret

Re: piston bolt size for speed kit?

david f martin /

I thought this would be an easy puzzle... remember, Mike is the odd man out.

david

Re: piston bolt size for speed kit?

Ron Brown /

Casey,

I was ready to jump on this post, but I decided that 50cc was having a translation problem and did not want to confuse things.

After reading Fred's post, I think you should tell the guy at 50cc what the correct terms are from Fred's post. Give him the English name too (it is correct, the English worry a lot about keeping thier gudgeons under conrol.

Now, back to your problem. Someone posted a while ago with a similar problem. He had allready received a kit with the wrong size wrist pin and had to have a replacement shipped. I am sure this is why they are now asking the question.

If you search the last 3 months or so with piston, pin, bushing and whatever else you can think of, you should find the thread.

My recolection is that the supplied wrist pin was too small and someone else posted something about the US model having a larger wrist pin and he made adaptor bushings. I may have this backward.

If you can't find the thread, or it is inconclusive, pull the cylinder and measure the diameter of the wrist pin. It is the hollow pin that attaches the piston to the connecting rod and allows the oiston to rock, like a hand on a wrist.

Ron

Re: piston bolt size for speed kit?

It was me, and I still haven't received a new piston. :( It's on back order.

It's certainly not me...

i dont have a Puch. :)

and im not changing my name... i have a copyright on it. haha.

casey

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