Offshoreonly.com - Spark Plug Torque

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Jana	07-29-2002 08:05 AM

Spark Plug Torque

Slightly dumb question, but it's not in the book that came with the engine. What should the torque be for spark plugs for an HP500?

TomZ	07-29-2002 12:32 PM

They should be snug. I've never heard of anyone using a torque wrench to tighten plugs. Get them snug and them give them a 1/8th turn. That'll keep'em in there.

klmken

07-29-2002 02:45 PM

I think the Merc manual says 16ft-lbs...

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