No fuel being drawn into lower cylinder Johnson 7.5hp

racerone

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That would allow water to get INSIDE the engine.-----JB weld would repair that.----But I see damage / wear ( scoring ) on bottom piston.-----Here that motor would be torn apart for inspection.----You found the " smoking gun " on this motor.
 

Msc19671

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I am in UK, we have ourselves only used it in river waters, but I dont know the history whether it was used on sea waters. I was thinking maybe try JB weld. In the UK outboard engines seem to be expensive most of the time.

I am assuming there should be no hole there, so will this affect the running of the engine
 

racerone

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That hole should not be there.-----Yes , that can cause water to be drawn into the cylinder.-----Worse yet , if water found it's way into the engine when shut down it is bad.----Could lead to corrosion of the bearings.----Here I would take a motor that apart for inspection.----Easy for me as I have all the parts for anything that motor could need.
 

Msc19671

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That hole should not be there.-----Yes , that can cause water to be drawn into the cylinder.-----Worse yet , if water found it's way into the engine when shut down it is bad.----Could lead to corrosion of the bearings.----Here I would take a motor that apart for inspection.----Easy for me as I have all the parts for anything that my friend
 

Msc19671

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My friend thinks the gaskets and plate keep the water out as its on the other side keeping the two halves separate, his thoughts are water wouldn't get that side as its exhaust gas where the hole is.
 

Crosbyman

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well a hole is usually round and that "chunck" missing does not fit the description much :)
patch it up and run it till it dies then find a nice early 60s 7.5 J or E .
 

racerone

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Well----Your friend does not know much about that motor.----I need to step aside on this saga.
 

Msc19671

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He isn't an expert on this matter, it was just his thoughts on his belief on how it is working, and can be corrected if he is wrong, which is why i have turned to you for your expertise for him to be put right if he is wrong
 

ct1762@gmail.com

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Jan 17, 2019
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873
or how about going on ebay and picking up a cheap used powerhead? i see quite a few little OMC powerheads from England on there! i say no way it will idle right again with that piston skirt like that
 
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