Should I install new tube o-rings:

1. Dry
2. smeared with a little oil
3. smeared with a little grease
4. smeared with a little hylomar

to get the best seal??????????

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Dry. They'll get plenty oily on their own.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

If they are new, dry is fine.

Once they are a bit old, I just put a little permatex around the edges and I never have leaks...

Lou

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Home of Slant6-powered fun machines since 1988

Should these tube o-rings be replaced at every plug change or less often? Are they used on 1979 /6?

Depending on your maintenance philosophy, the answer is either "about every 2 to 4 spark plug changes, depending on how fastidious you are" or "Every three decades, whether they need replacing or not".

They're used on 1960-1974 slant-6 cylinder heads. 1975 and later heads don't use plug tubes, therefore no plug tube seals.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thanks Dan!!! This site is excellent and you guys are GREAT!!!!!!!