Intake O-rings

[Guest]

Hallo!

How long these intake manifold (is that correct name) o-rings living a good shape?

Hour ago, i check (and change) these and totally crap found. All four o-rings is hard like a rock and crispy like a fish, and some pieces is gone. Maybe had some running issues, never running up since i bought it. Project still going.

[tom203]

Have you seem this guy's stuff....? He's a member here

http://www.cycleorings.com/intake.html

they need to be viton material, not the more common buna found in plumbing

[tkent02]

Buna lasted a while, Viton wasn't around when these bikes were built, the old stuff did OK.
Sure get Viton if you can but if you can't get what you can get.

[Vesmak]

Thanks for that Viton info, need to be buy these next time. That pics in there cycleoring site is just like i have couple of hours ago.

I use that normal o-rings now which i just bolt on, they hold up atleast this summer and in fall i need to take whole bike some guy who can do full motor restoration and change all needed parts in there. Motor has various oil leaks, many gaskets leaking.

[tkent02]

That guy is you.

[Dave8338]

That guy is you.

Strong and valuable words of wisdom.
Nobody will care and do the quality of work to your bike, better than YOU...

[Vesmak]

I still doubt that operation was too difficult to me..

[Grimly]

We've not had too many grenading motors from owner-rebuilders. The odds are good you'd be able to do it.

[tkent02]

I still doubt that operation was too difficult to me..

I doubt it too.

[Vesmak]

Have changed all carbs orings now and thinking now do i missed something, 8 pcs new orings still on the table. Same size what goes those fuel tubing things between carbs, 2 tube and 8 orings. And 4 orings going those airtubeconnectors. Maybe just spare pieces in kitt? Is this normal or i totally missed something.

[steve murdoch]

All the o-rings in the kits i got from Robert were identified.
Have another look at the website.

http://www.cycleorings.com/

[mrbill5491]

Have changed all carbs orings now and thinking now do i missed something, 8 pcs new orings still on the table. Same size what goes those fuel tubing things between carbs, 2 tube and 8 orings. And 4 orings going those airtubeconnectors. Maybe just spare pieces in kitt? Is this normal or i totally missed something.

I don't recall having any spares left from my oring kit from Robert.