Dumb o-ring question

[randy]

So I went ahead and ordered the o-rings that are not included in the 'complete' gasket set (oil pump, main oilway, special nozzle) and I have a really simple stupid question that I'm sure you guys who have re-done a few motors will have the answer to. In the shop manual there is a caution to NOT use any sealer on this main oilway o-ring:



My dumb question is: since this ring is so damned important, why would one NOT want any sealer there? BTW, I did find sealer on the original.

[DGXSER]

Not an expert, but I would think it is due to the fact any sealer you apply that is XSive would go into the oil pump and or galleys and become a potential block of oil to bearings and such. JAT

[tarzan]

An o-ring should seal itself anyway.Sealer is overkill.IMHO

[fabricgator]

Note*

There are various compositions to orings as well as hardness... be sure to order you orings for the specific environment. Oil, fuel, (glycol coolant) movement or vibration... fuel with ethanol....

http://www.marcorubber.com/material_chart.htm

Just a thought.

[Yahman]

o-rings that are not included in the 'complete' gasket set (oil pump, main oilway, special nozzle).

I have been working on putting together some sets of all the o-rings that are hard to find for these bikes, I will add these to the list. If anyone knows of any others let me know and I'll add them to the list.

Larry

[randy]

Ok, màinshaft bearing cover takes 2 big funky ones...and the starter nose tends to leak....

[petejw]

hey randy,
id just put a smear of oil around
the o ring.