Engine Trouble

[csvencer]

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

[THEFERMANATOR]

Sounds like you air locked the system. The VRO system has to be purged and run on 50:1 if there is ANY question about air being in the system. You'll probably want to pull the heads off as well, but it sounds like you got a rod or wrist pin bearing from lack of oil. There is a SLIGHT chance that you have air trapped in the VRO pump, but unlikely.

[Skools Out]

sounds like time to look for a motor. i would guess you hurt the rings, pistons and bearings in the motor. a compression test will tell but i would say you lost the motor due to oil injection, that's another reason not to run it. if it's in the gas and pre mixed you know as long as you have gas you have oil.

[csvencer]

How do I purge the oil line/pump? I am really hoping it is a bad ring or something but its not sounding too good right now...

-Svence

[bcurling]

Sorry to hear about you troubles. Try Ron's Marine (Johnson/Evinrude). I get all my work done there.

Quickest way there:

Out of Suffolk 58 to 264
Exit Victory Blvd, turn left
At third light, Airline Blvd turn right
Continue on Airline until you get to Mosberth Resturant right hand side of street.
Turn right on Rodman Ave.
Go through the second or third stop light. (If it's green) :-)
He is on the right hand side of the street, blue building


Ron's Marine & Equipment Inc
2406 Rodman Ave, Portsmouth, VA
(757) 397-3451

[csvencer]

Thanks for the suggestion, thats who I was going to call, looks like a good shop.

Well I just finished the compression test....not so good. Looking from the stern to the bow all the left cylinders were at 100-105, on the right the top two were 100-105 and the bottom right was 0. Was getting absolutely no compression or resistance with the plug in. The motor turned as if all the plugs were out when I still had that bottom right cylinder hooked up. I then checked to see if I was even getting the piston to compress, and it is so it looks like the rings are shot or the cylinder is fried. Anything else I should check before dropping her off at the shop? Can I resleeve the cylinder or is that asking for more trouble down the line?

-Svence

[Skools Out]

it may be lucky enough to be honed out and use a new piston, rings and bearings on that hole. but at a marina they won't usually fix one hole usually they want to do a $2500 to $3000 rebuild. Um i would remove the oil injection now.

[Enforcer]

I am sorry for your loss!! I have been there and done that!

And i have never used a oil injection system again, and never will.

Good luck

[csvencer]

The thing that pisses me off is that the oil injection didn't fail...it was me. I knew it needed oil but just figured I would wait for the damn low oil light to come on. What's it gonna set me back to rebuild that one cylinder? Going to call Ron in Portsmouth today or tomorrow and see what he says.

-Svence

[Skools Out]

in a shop my guess is least $950 and most likely will cost $2500 to $3000. The OMC owners manuals all say to check the oil before you leave the dock and everytime you fill with gas.