Can copper indexing washers be used to get plugs properly indexed? Anyone ever heard of this being done with outboards? Thanks.
Can copper indexing washers be used to get plugs properly indexed? Anyone ever heard of this being done with outboards? Thanks.
“By failing to prepare, you are preparing to fail”
Ben Franklin
2000 Ranger 518vx Comanche
Not recommended on the Evinrudes.
Hurts once, but I buy 12 the first time, when I only need 6. Then in the next year(s), or (50) hours, I just buy 6, so far it has been working for me.
Cool. Thanks. Yeah I seen it online and was just wondering. Thanks again.
“By failing to prepare, you are preparing to fail”
Ben Franklin
2000 Ranger 518vx Comanche
8 new plugs usually gets it done torque to 15 in lbs and to 20 if needed for indexing no tighter than 20 inch lbs max
2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
2002 basscat pantera 3 (dad bought new) sold 8-2-22
2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
pulled by a 2500HD Denali
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ASE/GM Master tech before tools
180 in lbs. then 240 in lbs.
Adding copper washers is definitely not a recommended procedure
Not only does an additional washer move the spark plug gap up and away from the edge of the fuel spray plume inside the combustion chamber but copper washers against an aluminum cylinder head is a prime place for dissimilar metal corrosion which could eventually require the replacement of the cylinder head. Copper and aluminum form a battery (voltage potential) when moisture is involved - especially salt water.
Any type of washer between the cylinder head and spark plug also affects the heat transfer from one to the other which may affect plug life.
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A Technical troubleshooter possessing more tools than talent !
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