oil cap mod query

[llhat]

From Cruisers tips (rip)

 

anyone tried a small bead of RTV on a 'new' cap surface, then the new gasket?
figure small bead let cure, then the new gasket, should make the fitment tighter

 

trying a Stant cap this time  (mi usa) instead of Motorrad or what can be obtained at FLAPS  (mostly china)

 

Almost want to try an O ring but figure it may not want to center.

[AnotherOldJeepGuy]

I like the insert idea, but didn't read it before I did what I did.  I bought a washer, rubber, polyurethane I think, at the hardware store that had the outer diameter just slightly larger than the original (only larger because they didn't have an exact OD match), and a little thicker, then used a hole saw to make the inner diameter match (although lots of other ways to make that cut).  Not as cheap as using a spare tire tube insert, if you have or can dig up one.  If you need to purchase, the washer is cheaper than buying a tube.  No more leaking.  Also if your leak is due to the original washer being cracked or dries out, the insert may not be good enough, this will cover that situation also.