pm head o ring

are rubbish this little mod works wonders

 

are you saying that the piaggio ring works better than the one pm just charged me 12 POUNDS FOR!!!!

 

i cant see how they work if they sit in the groove flush ?????????????? mines always going and the pm engine i had they sealed with gasket sealer (admitting it dont work ).
the piaggio gasket wont fit in the pm head unless you inlarge the inside dia of the o ring groove on the pm head by machining it.
then you can fit the piaggio one which sits .3mm proud of the head face thus acting like a o ring not a useless bit of orange rubber :thumbsup:

 

oh, so you have to machine it ale:

i wanna do that to mine because youre right, the pm one doesnt even make a good seal.

how much? and whats the quickest you would be able to do it?

 

stick it in the post with a fiver be back at you the same day i get it :thumbsup:

 

GOOD RESEARCHING SHINY :thumbsup: .
good quote awell me thinks :mrgreen:

 

good quote awell me thinks :mrgreen:[/quote]

only to fellow gang members :thumbsup:

 

sick man.. ill do that sometime next week when i got nowhere to go :grin:

 

I used an o-ring off something else, as my pm one failed miserable. think it was off my mito but it works a charm! love you xxxxxx

 

Thats a bit of good information there mate.

 

Machined a PM head after reading this on another forum. In Australia I went to a bearing specialist and bought ten Viton 1.8mm O-rings the right size (almost the right size, just a very slight stretch to get in the groove which does not effect them) for the equivalent of about one UK pound each. Thanks Shiny.