What sealant to use for oil pressure sender?

[axl911]

Help!

My 964 C2 oil pressure sender is leaking. I am chaning the o-ring seal. In addition, what sealant should I use to prevent further leak? Locktite 574? Curil-T? Gasket maker?

I am thinking of putting the sealant on the mating surface of the sender to the block. See pics.



thanks,
anthony

[Henry Schmidt]

No sealant is necessary. Clean as well as possible and install a new Viton seal.

[axl911]

Thanks Henry. But what is bothering me is that it was a new (non-Viton) o-ring I put in during my rebuild last year.

Is there any extra step I can take to prevent leak?

anthony

[Henry Schmidt]

In over 25 years I have never used a sealant on that oring fitting.

[Mike Juzenas]

I just lubed up the O ring and inserted without any sealant...its pretty hard to seal that up and the O ring is nice and fat anyways....

[axl911]

I'll try with just the o-ring.

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anthony