Re: FOR STAN IN (VA.) HELP ON O-RING SIZE FOR SLE

Posted by Janicholson on April 16, 2007 at 10:10:29 from (199.17.6.122):

In Reply to: FOR STAN IN (VA.) HELP ON O-RING SIZE FOR SLEEVE posted by COPPER KAT on April 15, 2007 at 17:55:41:

More than one o ring can be placed in the existing groove if the space is pretty much taken up from top to bottom, and the section of the rings used do not extend out more than 20% of the diameter of the section. Care must be taken on assembly to assure they are seated, and not crossed with each other. Another possible solution is to mill the outside of stock 3.25 sleeve O rings using a groved mandril and grinding gently to mill the outer surface so it has the same (or a little less) extension into the spigot hole. I would then use blue RTV on the flat of the ground Oring to assure a seal in the old groove bottom.
All of these will require some practical engineering and measurement. Orings need to compress into their groove about 20% to seal corectly in the groove. One that is ground will have less resiliance. I hope this helps, JimN

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