1998 Evinrude Ocean Pro 150- Just Quits when running

[dktexas54]

I need help: Here are the facts.
1.) 571 hours- yearly maint. by local Evinrude Mechanic.- Last March new lower end maint, impeller, new Ignition switch with safety laynard. Has run just fine appx 75 hours when things started happening.- Use valero 87 octane and put gas treatment in for ethanol. I start the motor at least once a month in the winter. I live in houston so temps rarely go below freezing.

2.) two trips ago, having cruised appx 15 miles at 3,000 rpm (i have 19' mako center console) i reduced to 1000 rpm coming into channel. appx 2 min. after, It sound as i hit something, the engine sputter and died. Repeated attempts to restart were fruitless. It would just turn over but no fire like wanting to start. tried 15 min then got tow into dock. back at yard where i keep boat, ( appx 1.5 hour - hooked up to hose , engine turned over and started just fine. this has happened now 2 times. today, it happend. was cruising 7 miles at 3,000 rpm, no problems, anchored, for about 2 hours, ?started fine, trolled for 5 min. then got up to 2500 rpm through small channel and engine sputtered like i hit a log and died. same problems as before. got towed in. back at yard, 2 hours later it started up just fine.

3.) things i have done to engine lately- new water fuel filter.

Anyone have any idea what this might be.? there is water coming out from the pump.

Thanks,
David

 

[tashasdaddy]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

any alarms? is it running hot? is fuel bulb collasped? have you check spark, when it dies?

 

[dktexas54]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

no alarms, yes, fuel bulb is soft, no bulb light for overheat, but is connected to shut down if overheating, took cover off, top of crank seemed hot but i have never really every paid attention.

 

[wilde1j]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Soft priming bulb is fine, collapsed is not. Which is it?

Forget the top of the crank, is the block, heads hot to the touch (i.e. over 150 to 160 deg F?

 

[Seon]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Shake the bulb and if you hear a rattle then you need to replace it. Heck I'd replace it anyway if it's soft.

 

[jonesg]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

They all go soft once the engine starts to draw fuel, they become a flow through valve, as long as the bulb doesn't collapse flat its ok.

 

[Chris1956]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

David, Unless you changed some wiring, that motor will not shut down when it overheats. it will however, go into S.L.O.W. mode where only 3 cylinders will fire. You might check all the spark plugs to see that they have the same color. Perhaps the motor is overheating, going into S.L.O.W. mode and the cylinders that are supposed to run are fouling out.

 

[ezeke]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Sounds like a short in the kill circuit, I would recheck the wiring, ignition switch and emergency kill switch.

 

[dktexas54]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Well, it happened again. Took boat to my mechanic, he changed the two thermostats, put new water separator, did annual. ran motor and my mechanic said was fine. Took wife out yesterday on clear lake and just like before, started perfect, idled perfect, ran 1000 rpm through channel for 15 minutes, got into lake, opened up to 2800 rpm, good power, smooth acceleration, running 5 min and then it happened. like engined ingested something, shook, sputtered and stopped. would turn over but no fire. took cover off. heads felt hot, let cool off 45min. turned iginition switch, cranked up fine, got up on plane for 45 sec or so then engine stopped. same senario. i have no alarm going off. I do seem too have excessive oil coming out of my carbs and collecting at bottom of engine and i was wondering if i did have some chaffed wires would the oil etc be causing some type of short. but why would that short only occur once i had been running 15-20 mins? I just spent $350 and getting ready to take back to my mechanic these week. I was planning on asking him (and i want to be there to watch) run the engine at high rpm to see if I can duplicate out of water. my mechanic cleaned my carbs, did adjustments done in annual. Any ideas cause its getting fustrating!! The wife was none too happy with me yesterday.!!

David

 

[wilde1j]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

You need to find a new mechanic who can diagnose and repair, not just start replacing parts. You could eventually wind up with a brand new motor!

 

[ezeke]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Sounds like a short in the kill circuit, I would recheck the wiring, ignition switch and emergency kill switch.

 

[dktexas54]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

I went down to the boat this afternoon and put on hose. ran 18 min @ 1200 rpm. good flow on pump, idleing fine. water never got hot, only warm. at about 17 min started noticing higer rpm surge a few hundred rpm and then before it finally quit, rpm reved up like running out of fuel then chugged and quit like on the water. touched head - could put palm on head for 2-3 sec, did not feel overly hot, bulb never went flat. i did this test so when i take to my mechanic monday, i can dulicate for him. my question to everyone is this: could i be running out of fuel. the problem happens exactly 15-25 min. after turning on. I have my fuel hose (new) running to water/fuel separator thru bulb to engine. fuel filter on engine is clean. if it were the kill switch, why is it happening. can someone explain? could there be some fuel lock etc. i grasping here. any help appreciated so when i go to my mechanic, (who by the way i think is very honest and good) i can better explain.

 

[jonesg]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

For $350 the mechanic didn't do the carbs, carb kits alone would cost more than half of that and they charge approx $100 PER carb, they need rebuilding, not just "cleaning" (whatever that is.)

Surging to higher rpm is an indication of leaning out, starving for fuel before it goes too lean to continue running.

A timing light will show whether its really leaning out or actually losing spark, the symptoms are difficult to discern without troubleshooting w/ timing light.

 

[dktexas54]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

any alarms? is it running hot? is fuel bulb collasped? have you check spark, when it dies?

I wish to thank everyone for their response. It was the powerpak. My mechanic ran 22 min today and it quit. he could not get any spark. He says it was the power pak. I will try again this weekend on the lake. If it doesn't work, my better half will kill me. Thanks again for all the help. I will let you know after this weekend if all is well.

David

 

[dktexas54]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

I wish to thank everyone for their response. It was the powerpak. My mechanic ran 22 min today and it quit. he could not get any spark. He says it was the power pak. I will try again this weekend on the lake. If it doesn't work, my better half will kill me. Thanks again for all the help. I will let you know after this weekend if all is well.

David

ran in lake today and she ran perfect!!! it would be great if someone could explain in laymans terms what a power pak is and how it functions and what can happen to damage one. thanks again everybody and I am back boating

 

[ezeke]

Re: 1998 Evinrude Ocean Pro 150- Just Quits when running

Powerpacks are basically systems of capacitors and diodes, which diodes can be damaged by any flow of voltage in the wrong direction.

Bad ignition coils, failing rectifiers or any voltage reaching the kill circuit are typical causes.

You can also destroy them by pulling spark plug wires while the engine is running or by running spark tests without grounding the loose wires.