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Here is a thread on my 1965 Johnson 18 HP I just bought. Thought I would share and update as I progress. It will go on my 1436 Polarcraft from 1960 if it goes to plan. (Duck hunter and fishing machine boat). I have a 9.5 HP on it now and it just ain't enough. Sent from my SM-N986U using Tapatalk

Has anyone tried using a clamp collar and slide hammer to pull out a stuck driveshaft in a powerhead? I got the foot off, now just need to pull the shaft out. I have turned the motor upside down and spayed in Deep Creep. May need 2 or 3 collars placed together for extra support? -Kurt 1436...

WTT my 8 1/4" x 9 Pitch, Pin Drive, OMC Part # 391354 for an 8 1/4" X 8 Pitch Prop. I bought it as new old stock. Ran it a couple times, and it is too much pitch for my boat. In prefect shape minus a few scratches. Pictures are before I ran it. Let me know what you got, will take a trade for a 8...

I have a suspicion my upper crankshaft seal is blown or damaged. Also, this motor has low compression, 40 PSI nearly exactly on both cylinders, cold, using a Harbor Freight compression tester. Edit** just found out my tester is not accurate, need to get another one. Will update thread later...