Quote:
Originally Posted by smracing
An o-ring groove on the mounting surface would be nice. This would get rid of the gasket or rtv that has to be used.
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Adding an o-ring to the bottom surface was actually something we thought about
but ultimately decided not to pursue.
The reason is that an o-ring seal required very smooth surfaces for it to work properly.
The surface on our oil block is not problem since it's machined but the surface on the KA block, while machined, isn't smooth enough for an o-ring to properly seal.
That and leaking with gasket/RTV hasn't been an issue.
Also, we have already added to viton 0-rings to seal the oil outlet neck from the KA block as can be seen here:
we may very well add the groove but it would act as a guide for RTV.