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Spark Plug Torque

GarnGarn Posts: 525 Crazy Baller
edited April 2017 in Boat Talk
Does anyone know what torque you should tighten the spark plugs too on a 2007 325 Indmar engine?


  • Kdinger838Kdinger838 Posts: 57 Baller
    I think it was somewhere around 10-15 ft/lbs.
    i usually index the plugs, just don't snap them!
  • 303Skier303Skier Posts: 468 Solid Baller
    I wouldn't torque them, just get them nice and tight.
  • jhughesjhughes Posts: 1,013 Mega Baller
    Plug torque is definitely a "feel" thing. I wouldn't trust a torque wrench in this application.
  • teammalibuteammalibu Posts: 904 Mega Baller
    My dad was a mechanic for 60 years and he would tell ya to crank er down till she snaps and back it off a quater turn! course he also said to find a short stick a penny in the fuse and just watch for the smoke
    Mike Erb Cedar Ridge Canton Miss.
    Horton is my hero
  • JordanJordan Posts: 1,212 ★★★Triple Panda Award Recipient ★★★
    I've always run them in finger tight then tighten a half turn
  • oldjeepoldjeep Posts: 3,497 Mega Baller
    Depends on the plugs, for those with crush gaskets I usually snug down finger tight and then 1/4 turn. For those without gaskets more like 1/8 turn.
    Chuck P
    Not a mechanic but I play one at home
  • GarnGarn Posts: 525 Crazy Baller
    Thanks for your input. Bottom line ... not very tight!
  • RichardDoaneRichardDoane Posts: 4,343 Mega Baller
    18 ft. lbs. is plenty
    BallOfSpray Pacific Northwest Vice President of Event Management, aka "Zappy"
  • GarnGarn Posts: 525 Crazy Baller
    Thanks @Mark_Matis That chart is perfect!
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