Noticed recent issue when starting up out of water, definitely burning oil with heavy smoke from exhaust. Seemed to get better more it ran, took to the water with it and same issue in the water at startup, seemed to go away in a few mins, so took out to the water and ran good all day. Same issue week late;, started up for pre-launch checks in garage and smoked out the neighborhood, this time never seemed to get better.
Read some posts on possible crank and rotary valve seals leaking after sitting a while, but really can not find an easy step by step procedure narrow it down. I did ensure the oil pump cable is hooked up and on the index marks at idle, so it would really seem like the crank or rotary shaft seals might be leaking. In an attempt to troubleshoot, I removed the oil return line from the top of the oil tank and blew into to it till all oil returned to the tank and then squeezed off the supply line and blew into the return line and it appears to hold perfect pressure. Though if crank seals were bad it would leak right thru, but held very tight.
So next I pulled the rotary valve cover off for a quick inspection, nothing noted out of ordinary, no excessive oil build up, put all back together and still starts good, but still has heavy oil coming from exhaust. Blew all oil out of return line again and sealed off both return and supply lines from tank, let sit a few days and still same issue on start. Read some posts about storing ski with nose down to keep oil from leaking in seals to get thru the season and tear it down after, but this time on startup I had a lockup, pulled plugs and cranked with a rag over the holes and found the front cylinder full of oil, got it all out and still starts good, but same burning oil issue is still there. Did note dark gray/blackish oil dripping from the both exhaust areas outside of ski fairly heavy.
I'm at a loss, just take it to the water and run it out and if it stops, pinch off supply line after use and see it it leaks down again? There must be some easy steps to do without having an expensive factory leak test kit that blocks off all the ports?
Read some posts on possible crank and rotary valve seals leaking after sitting a while, but really can not find an easy step by step procedure narrow it down. I did ensure the oil pump cable is hooked up and on the index marks at idle, so it would really seem like the crank or rotary shaft seals might be leaking. In an attempt to troubleshoot, I removed the oil return line from the top of the oil tank and blew into to it till all oil returned to the tank and then squeezed off the supply line and blew into the return line and it appears to hold perfect pressure. Though if crank seals were bad it would leak right thru, but held very tight.
So next I pulled the rotary valve cover off for a quick inspection, nothing noted out of ordinary, no excessive oil build up, put all back together and still starts good, but still has heavy oil coming from exhaust. Blew all oil out of return line again and sealed off both return and supply lines from tank, let sit a few days and still same issue on start. Read some posts about storing ski with nose down to keep oil from leaking in seals to get thru the season and tear it down after, but this time on startup I had a lockup, pulled plugs and cranked with a rag over the holes and found the front cylinder full of oil, got it all out and still starts good, but same burning oil issue is still there. Did note dark gray/blackish oil dripping from the both exhaust areas outside of ski fairly heavy.
I'm at a loss, just take it to the water and run it out and if it stops, pinch off supply line after use and see it it leaks down again? There must be some easy steps to do without having an expensive factory leak test kit that blocks off all the ports?
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