Author Topic: Breather cork  (Read 961 times)

Offline Tone

  • Brighton UK
  • A's Best Friend
  • ***
  • Join Date: Nov 2008
  • Posts: 157
  • Karma: 0
Breather cork
« on: 15.08. 2009 11:40 »
Hi Guys, Can someone please tell me how you work out the right thickness for the breather cork,and does it have to be exact? Cheers.

Offline A10Boy

  • Wise & Enlightened
  • *
  • Join Date: Jun 2008
  • Posts: 1075
  • Karma: 11
  • Solihull, Near Birmingham England.
Re: Breather cork
« Reply #1 on: 15.08. 2009 12:19 »
Its mostly trial and error ! If you have the old one use that as a starting point. Gasket sets have 3 or 4 different thicknesses to choose from. The main thing is to make sure you have no end float on the camshaft, any play and the cork will leak badly. It should be slightly compressed, but not too much so as to bind. Use one that's too thick rather than one that's too thin, and it will be right, a thick one will compress.

And make sure its well oiled when you fit it.
Regards

Andy

1958 Super Rocket
Plus
1974 Kawasaki Z1a
Yam XJR 1300

Offline Tone

  • Brighton UK
  • A's Best Friend
  • ***
  • Join Date: Nov 2008
  • Posts: 157
  • Karma: 0
Re: Breather cork
« Reply #2 on: 15.08. 2009 12:55 »
Thanks Andy Great help.

Offline Josh Cox

  • Valued Contributor
  • ****
  • Join Date: Apr 2009
  • Posts: 275
  • Karma: 0
Re: Breather cork
« Reply #3 on: 16.08. 2009 02:38 »
Put the outer cover on, measure the end play of the breather and pick the next biggest cork, some have mentioned about .010" compression,

I.E. I had .022" end play, put in the .030" cork and it will compress to fill the hole, make sure you soak the cork in oil overnight before installation.
Black 1953 Golden Flash Plunger