csvencer
Senior Member
2000 Johnson 150 Ocean Pro, Carbed, with oil tank still being used....long read but any insight would be helpful.
Was heading out today when I got a No Oil alarm (interesting because the low oil never went off and it was working a month ago). Immediately throtte down and turn off the engine, open the oil tank and sure enough it is empty with only a little still in the ball. Fill the tank with oil, pump the ball hard and fire her up. No alarms. Idle along for a bit to make sure all is well and then throttle up. 15 secs later I got a No Oil alarm again. Check the ball, squeeze it a few times and fire it back up. No alarms and we are off again. AGAIN a no oil alarm, this time I just key off and on and the alarm is gone. Think there may be some air in the line that is setting off the alarm. Get going one last time and all is well. Run another 3 miles and all of a sudden loss of power and stalls out, No alarms. Fires right back up and fine again. So we anchor and fish.
2-3 hours later I fire it up and head for home. Half way home I get a loss of power again and it stalls. Fire it back up and idle for a bit then off we go again. This time I get a weird plastic knockind/whing sound as if something is whacking the inside of the cowling. Off goes the cowling and now I just have a knock noise and rough idle. Powering up works and then a loss of power. Decide to shut it down and call sea tow for fear of doing more damage.....
I am thinking that I might have fried a ring or a cylinder wall with the no oil issue and now it is acting up???...??? Going to do a compression test tomorrow, right after I buy a compression tester
. Anyone have any other idea what it might be. I am guessing the oil has atleast something to do with the problem but you never know.
Also anyone have a good johnon mechanic in the Hampton Roads VA area???
-Svence
Was heading out today when I got a No Oil alarm (interesting because the low oil never went off and it was working a month ago). Immediately throtte down and turn off the engine, open the oil tank and sure enough it is empty with only a little still in the ball. Fill the tank with oil, pump the ball hard and fire her up. No alarms. Idle along for a bit to make sure all is well and then throttle up. 15 secs later I got a No Oil alarm again. Check the ball, squeeze it a few times and fire it back up. No alarms and we are off again. AGAIN a no oil alarm, this time I just key off and on and the alarm is gone. Think there may be some air in the line that is setting off the alarm. Get going one last time and all is well. Run another 3 miles and all of a sudden loss of power and stalls out, No alarms. Fires right back up and fine again. So we anchor and fish.
2-3 hours later I fire it up and head for home. Half way home I get a loss of power again and it stalls. Fire it back up and idle for a bit then off we go again. This time I get a weird plastic knockind/whing sound as if something is whacking the inside of the cowling. Off goes the cowling and now I just have a knock noise and rough idle. Powering up works and then a loss of power. Decide to shut it down and call sea tow for fear of doing more damage.....
I am thinking that I might have fried a ring or a cylinder wall with the no oil issue and now it is acting up???...??? Going to do a compression test tomorrow, right after I buy a compression tester

Also anyone have a good johnon mechanic in the Hampton Roads VA area???
-Svence