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  1. W

    Top piston worth replacing? (120hp low compression)

    So what do I use? the old stuff didn't seem like it was RTV so I wasn't going to use that thick stuff. The old stuff looked like a very thin clear liquid.
  2. W

    Top piston worth replacing? (120hp low compression)

    Hey guys, I posted this thread a little while ago and here is an update along with a question. I pulled the powerhead completely apart like everyone told me to do and found I had 1 broken ring on the #2 cylinder along with the top carb Reed valve just about completely toast. So Ive had the...
  3. W

    Top piston worth replacing? (120hp low compression)

    Pulled the port cover. Only broke 3 bolts. Think I may of found the broken ring on top cylinder looking at the open gap on the side. On #3 found scoring marks near the top after the rings. Other then that the piston looks good, maybe some metal got in that one and left its mark. The top 2...
  4. W

    Top piston worth replacing? (120hp low compression)

    Thanks for the replies! Will pull the port cover soon. A broken ring, or 2 does make a lot of sense. I just pray I don't have to machine the block, I have no clue where to go for that...atleast locally. The metal rings are in great shape on the gasket so I don't think that was the compression...
  5. W

    Top piston worth replacing? (120hp low compression)

    Hey guys Ryan here,,first time posting. Have a 1997 120 hp Force outboard on a quantum 170xd I started tinkering with. Have had it for a couple years but only have taken it out after I first bought it (ran fine) and then it was sitting for awhile. Motor was seized but after spraying some wd40...
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