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mertkajosh reacted to Mc Tool's post in the thread Black scuff marks on cylinder walls with Like.

😁yeah well dont look at nothing else aye ....just put it back together and go boating , 😂😂

Friday at 2:06 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

Good to know. It scared the crap out of me. I really do appreciate everyone’s advice and input. It’s helped me tremendously while...

Friday at 9:14 AM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

I just figured since it was on the hot side of the piston the heat caused those pin holes. Thanks for the help and information!

Friday at 8:25 AM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

Ok it scared me when I saw them. There’s quite a few in almost all the ports. Just wanted to make sure it’s all good. Thanks!

Friday at 6:51 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

Do you know what these little pin holes are? Looks like corrosion or something. The pits aren’t too deep but there’s quite a few of them
Friday at 6:41 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

So I’m assuming the big thick black one inside the crankshaft head seal is what stops water from from back up into the motor and keep...

Thursday at 10:05 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

Thank you so much!

Thursday at 9:28 PM
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mertkajosh reacted to jimmbo's post in the thread Black scuff marks on cylinder walls with Like.

Looking at the Parts Diagram for that Model # doesn't show an O-ring on the Driveshaft. Put some Grease on the Splines, but make sure...

Thursday at 9:28 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

It’s a 1994 Johnson 90hp v4. Model number J90TLERC. I have looked at multiple diagrams and cannot seem to figure out if it’s suppose to...

Thursday at 7:17 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

There is definitely a spot for one on the driveshaft. But there’s also a big oring inside the crankshaft head cover. So does that seal...
Thursday at 6:34 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

I have a question about the oring that sits at the top of the driveshaft. Mine currently doesn’t have one on it. When I replaced the...

Thursday at 6:26 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

Are these opening suppose to be in the crankcase heas assembly?
Wednesday at 3:32 PM
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mertkajosh reacted to racerone's post in the thread Black scuff marks on cylinder walls with Like.

Use a factory replacement gasket.---Best quality

Wednesday at 9:25 AM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

I removed the bolts holding the powerhead on and burnt oil started flowing from the holes. Is this from a bad base gasket?
Wednesday at 6:58 PM
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mertkajosh replied to the thread Black scuff marks on cylinder walls.

The serial number of the powerhead matches the serial number on the midsection.

Tuesday at 3:43 PM