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-   -   Spark Plug Torque Setting (https://www.offshoreonly.com/forums/general-boating-discussion/328721-spark-plug-torque-setting.html)

mike tkach 07-20-2015 10:40 PM


Originally Posted by swiss (Post 4332228)
I go with German specs... good'n tight

you beat me to it.i have installed a plug or two but never put a torque wrench in one.

thirdchildhood 07-21-2015 06:39 AM


Originally Posted by HyFive578 (Post 4332219)
on 525 EFI, merc service manual says 20 ft lbs.

Yep, that's what my manual says. I've never torqued a spark plug in my life either though. After you've done your first few hundred you do it by feel. I agree with a bit of anti-seize but I don't always use it.

F-2 Speedy 07-21-2015 07:08 AM

I always use anti-seize on aluminum heads, cast no........... tighten till just before you hear the porcelain pop

Feverz29 07-21-2015 07:58 PM

Third, while you were up last weekend, I could have had you change them, lol. I'm no mechanic and didn't want to f anything up. Thanks for the feedback.


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