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#1
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Argh! Engine problems
I'm probably not alone with this as there are probably more novice boaters
getting just as fed up as me with these money hungry things Get ready for a bit of a story! I have an old Johnson 90HP V4, about 1981.... A couple of weeks ago I went to start it (after probably about 2 months without touching it) and it wouldn't start (surprise surprise) I thought the battery was just dead as there was only a click when I tried to start it (like what used to happen a lot with my old battery). So I put it down to that and started disconnecting the battery to go and charge it..... Then i smelt a real bad stink... Took the cover off... smoke everywhere...... and black stuff coming out of the top of the starter motor.. blown transformer smell. That was 23/12/04 Rang around a few places on 24/12/04 thought everythign would be closed... but luckily one place was open and that had spares.... I took the boat to them..... They had a look at it, and found my flywheel was jammed... (not a good feeling). They put a big spanner onto it and got it free.... that was a bit of a relief.... They also checked the spark plugs... they'd gone rusty Which I'm told is due to water in the fuel... So I bought a fuel filter... (havn't put that in yet) So got new spark plugs, new starter motor..... Off to the boat ramp..... Tried to start it a few times... rrrrrrr rrrrr rrrrr then I stopped and turn the key off..... Heard a noise from the engine and I took the cover off.... the starter motor still had power on it... it was still spinning.... about about another minute it stopped. (It wasn't touching the fly wheel while it was doing this) Tried starting it again and eventually away it went.... We went out for a few hours and all was fine.... although I didn't have as much power as normal.... one of the other guys I was with said the choke isn't coming off fully... they fiddled a bit and I got power back.... A couple of days later I took it away on a holiday (on the trailer). First day of use it was fine...Pulling people on a donut thing and all. Second day was ok most of the time but I was losing power a bit sometimes... Third day it wouldn't start.... just a click.... ARGH! Tried about 10 times... check fly wheel, that was ok.... but all I get was a click from somewhere...... Fiddled with the gears etc.. nothing.... eventually it started....off we went.... about a 1 hour boat trip up the river.... It was fine most of the time, but I hit a log in the water and I lost power after that.....I couldn't get much grunt out of it... (I've been told this could be due to the propeller getting bent, but I checked this later and it doesn't appear to be bent). Anyway... we pulled over... didn't about and hour of fishing...then went back. Started ok.... The next day I took it out again, back closer to home.... Same problem as before.... just a click when trying to start it.... Luckily there was another boat at the ramp which was having problems starting.... and they had a cousin there who was a boat mechanic He jumped onto the boat.. checked a few things, then he used my portable jump starter thing directly on the starter motor while I turned the key....after about 30-60 seconds of trying, it started.... So he said my solenoid was faulty..... Took the boat out for about half an hour.... couple of hours fishing.. and it started first go. Pulled the boat out of the water.... I didn't get to wash the boat till abotu 5 hours later... but same problem when trying to flush the engine.... couldn't start..... Use the jumper started on the starter motor and awy she goes after a while... Now for my questions Initally I said the starter motor wouldn't stop spinning...... Could that have something to do with the solenoid not letting go??? I'm hoping, if the solenoid is replaced, it will fix that problem and the starting problem.... but just wondering if there could be any other things wrong....The solenoid thing must work a bit cause the engine does start by itself if it has been started in the last couple of hours....Does the solenoid thingy do any work once the engine is running? Just thought that if we had to bypass it to start the stater motor, then it never really gets used, therefore why does it start it when the engine might be a little warmer? On that last day out, I started using Unleaded petrol (the days previous to that I was still using leaded). Some people say I may need a tune up once I start using unleaded? I'm really just trying to prepare before I contact the repair guy to fix some stuff The person that helped me start the engine is a mobile mechanic (doesn't have a shop), I will probably call him to fix up the problems..... The starting thing might be something that he can do on land.... but a tune up and loss of power etc, that would have to be done in the water, is that right? Any views or help would be most appreciated Regards Glen |
#2
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GC wrote:
I'm probably not alone with this as there are probably more novice boaters getting just as fed up as me with these money hungry things Get ready for a bit of a story! I have an old Johnson 90HP V4, about 1981.... A couple of weeks ago I went to start it (after probably about 2 months without touching it) and it wouldn't start (surprise surprise) I thought the battery was just dead as there was only a click when I tried to start it (like what used to happen a lot with my old battery). So I put it down to that and started disconnecting the battery to go and charge it..... Then i smelt a real bad stink... Took the cover off... smoke everywhere...... and black stuff coming out of the top of the starter motor.. blown transformer smell. That was 23/12/04 Rang around a few places on 24/12/04 thought everythign would be closed... but luckily one place was open and that had spares.... I took the boat to them..... They had a look at it, and found my flywheel was jammed... (not a good feeling). They put a big spanner onto it and got it free.... that was a bit of a relief.... They also checked the spark plugs... they'd gone rusty Which I'm told is due to water in the fuel... So I bought a fuel filter... (havn't put that in yet) So got new spark plugs, new starter motor..... Off to the boat ramp..... Tried to start it a few times... rrrrrrr rrrrr rrrrr then I stopped and turn the key off..... Heard a noise from the engine and I took the cover off.... the starter motor still had power on it... it was still spinning.... about about another minute it stopped. (It wasn't touching the fly wheel while it was doing this) Tried starting it again and eventually away it went.... We went out for a few hours and all was fine.... although I didn't have as much power as normal.... one of the other guys I was with said the choke isn't coming off fully... they fiddled a bit and I got power back.... A couple of days later I took it away on a holiday (on the trailer). First day of use it was fine...Pulling people on a donut thing and all. Second day was ok most of the time but I was losing power a bit sometimes... Third day it wouldn't start.... just a click.... ARGH! Tried about 10 times... check fly wheel, that was ok.... but all I get was a click from somewhere...... Fiddled with the gears etc.. nothing.... eventually it started....off we went.... about a 1 hour boat trip up the river.... It was fine most of the time, but I hit a log in the water and I lost power after that.....I couldn't get much grunt out of it... (I've been told this could be due to the propeller getting bent, but I checked this later and it doesn't appear to be bent). Anyway... we pulled over... didn't about and hour of fishing...then went back. Started ok.... The next day I took it out again, back closer to home.... Same problem as before.... just a click when trying to start it.... Luckily there was another boat at the ramp which was having problems starting.... and they had a cousin there who was a boat mechanic He jumped onto the boat.. checked a few things, then he used my portable jump starter thing directly on the starter motor while I turned the key....after about 30-60 seconds of trying, it started.... So he said my solenoid was faulty..... Took the boat out for about half an hour.... couple of hours fishing.. and it started first go. Pulled the boat out of the water.... I didn't get to wash the boat till abotu 5 hours later... but same problem when trying to flush the engine.... couldn't start..... Use the jumper started on the starter motor and awy she goes after a while... Now for my questions Initally I said the starter motor wouldn't stop spinning...... Could that have something to do with the solenoid not letting go??? I'm hoping, if the solenoid is replaced, it will fix that problem and the starting problem.... but just wondering if there could be any other things wrong....The solenoid thing must work a bit cause the engine does start by itself if it has been started in the last couple of hours....Does the solenoid thingy do any work once the engine is running? Just thought that if we had to bypass it to start the stater motor, then it never really gets used, therefore why does it start it when the engine might be a little warmer? Yes the starter staying on does sound like a stuck solenoid, but the "click" symptom may or may not be related to the solenoid. It's almost certainly a bad connection in the heavy starter wiring from the battery, + &/or -. You can sorta isolate the likely place by checking the voltage (with a cheap $10 multimeter) progressively along the route (where ever you can get access at heavy lead connecting points) commencing at the battery & ending at the starter itself. Do this while someone holds the key on start for you. Also feel where ever there's a connection, the offending connection(s) will get warm to hot very quickly. Of course you can just go through all of them, clean & re-tighten one by one. Once running the solenoid does nothing, only on cranking. It's probably got a bit of rust or grunge etc, try giving it a good clean & activate it a few times with the starter wire disconnected, to satisfy yourself it's operating feely etc. A "little" say WD40 is OK to encourage it but don't overdo it, you don't want oil on the heavy load contacts. On that last day out, I started using Unleaded petrol (the days previous to that I was still using leaded). Some people say I may need a tune up once I start using unleaded? The unleaded fuel shouldn't effect the starting. I'm really just trying to prepare before I contact the repair guy to fix some stuff The person that helped me start the engine is a mobile mechanic (doesn't have a shop), I will probably call him to fix up the problems..... The starting thing might be something that he can do on land.... but a tune up and loss of power etc, that would have to be done in the water, is that right? He should be able to tune it OK not in the water, but you should prefer a water test to make sure you're happy. An 81 engine is not young as of a week ago it's what 23-24 yrs old??? it will probably be a bit down on power but still serviceable if cared for. When you stop using it for any long amount of time say months, consider letting some protective oil remain in it. You can get spray cans of fogging oil (or just buy light oil & use a household trigger sprayer), with the engine idling just spray a little in each carb (air silencer off) or till the engine stalls on account of it. This will coat the needle roller & ball bearings with oil, then squirt a little down each plug hole & finger tight only put the plugs back in leaving the leads off. When you want to start using it again, take the plugs out & give it a crank or two to make sure any excess oil has been thrown out , plugs in, leads & it'll last much longer. K Any views or help would be most appreciated Regards Glen |
#3
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Replace the solenoid!
-- Bill Chesapeake, Va "GC" wrote in message ... I'm probably not alone with this as there are probably more novice boaters getting just as fed up as me with these money hungry things Get ready for a bit of a story! I have an old Johnson 90HP V4, about 1981.... A couple of weeks ago I went to start it (after probably about 2 months without touching it) and it wouldn't start (surprise surprise) I thought the battery was just dead as there was only a click when I tried to start it (like what used to happen a lot with my old battery). So I put it down to that and started disconnecting the battery to go and charge it..... Then i smelt a real bad stink... Took the cover off... smoke everywhere...... and black stuff coming out of the top of the starter motor.. blown transformer smell. That was 23/12/04 Rang around a few places on 24/12/04 thought everythign would be closed... but luckily one place was open and that had spares.... I took the boat to them..... They had a look at it, and found my flywheel was jammed... (not a good feeling). They put a big spanner onto it and got it free.... that was a bit of a relief.... They also checked the spark plugs... they'd gone rusty Which I'm told is due to water in the fuel... So I bought a fuel filter... (havn't put that in yet) So got new spark plugs, new starter motor..... Off to the boat ramp..... Tried to start it a few times... rrrrrrr rrrrr rrrrr then I stopped and turn the key off..... Heard a noise from the engine and I took the cover off.... the starter motor still had power on it... it was still spinning.... about about another minute it stopped. (It wasn't touching the fly wheel while it was doing this) Tried starting it again and eventually away it went.... We went out for a few hours and all was fine.... although I didn't have as much power as normal.... one of the other guys I was with said the choke isn't coming off fully... they fiddled a bit and I got power back.... A couple of days later I took it away on a holiday (on the trailer). First day of use it was fine...Pulling people on a donut thing and all. Second day was ok most of the time but I was losing power a bit sometimes... Third day it wouldn't start.... just a click.... ARGH! Tried about 10 times... check fly wheel, that was ok.... but all I get was a click from somewhere...... Fiddled with the gears etc.. nothing.... eventually it started....off we went.... about a 1 hour boat trip up the river.... It was fine most of the time, but I hit a log in the water and I lost power after that.....I couldn't get much grunt out of it... (I've been told this could be due to the propeller getting bent, but I checked this later and it doesn't appear to be bent). Anyway... we pulled over... didn't about and hour of fishing...then went back. Started ok.... The next day I took it out again, back closer to home.... Same problem as before.... just a click when trying to start it.... Luckily there was another boat at the ramp which was having problems starting.... and they had a cousin there who was a boat mechanic He jumped onto the boat.. checked a few things, then he used my portable jump starter thing directly on the starter motor while I turned the key....after about 30-60 seconds of trying, it started.... So he said my solenoid was faulty..... Took the boat out for about half an hour.... couple of hours fishing.. and it started first go. Pulled the boat out of the water.... I didn't get to wash the boat till abotu 5 hours later... but same problem when trying to flush the engine.... couldn't start..... Use the jumper started on the starter motor and awy she goes after a while... Now for my questions Initally I said the starter motor wouldn't stop spinning...... Could that have something to do with the solenoid not letting go??? I'm hoping, if the solenoid is replaced, it will fix that problem and the starting problem.... but just wondering if there could be any other things wrong....The solenoid thing must work a bit cause the engine does start by itself if it has been started in the last couple of hours....Does the solenoid thingy do any work once the engine is running? Just thought that if we had to bypass it to start the stater motor, then it never really gets used, therefore why does it start it when the engine might be a little warmer? On that last day out, I started using Unleaded petrol (the days previous to that I was still using leaded). Some people say I may need a tune up once I start using unleaded? I'm really just trying to prepare before I contact the repair guy to fix some stuff The person that helped me start the engine is a mobile mechanic (doesn't have a shop), I will probably call him to fix up the problems..... The starting thing might be something that he can do on land.... but a tune up and loss of power etc, that would have to be done in the water, is that right? Any views or help would be most appreciated Regards Glen |
#4
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Thanks for your help....
I had a read of a service manual and I understand a little more about how it works, and yeah it keeps pointing out that it could be a loose or dirty cable.... I'll get the pro to look at it anyway Thanks again! "K. Smith" wrote in message ... GC wrote: I'm probably not alone with this as there are probably more novice boaters getting just as fed up as me with these money hungry things Get ready for a bit of a story! I have an old Johnson 90HP V4, about 1981.... A couple of weeks ago I went to start it (after probably about 2 months without touching it) and it wouldn't start (surprise surprise) I thought the battery was just dead as there was only a click when I tried to start it (like what used to happen a lot with my old battery). So I put it down to that and started disconnecting the battery to go and charge it..... Then i smelt a real bad stink... Took the cover off... smoke everywhere...... and black stuff coming out of the top of the starter motor.. blown transformer smell. That was 23/12/04 Rang around a few places on 24/12/04 thought everythign would be closed... but luckily one place was open and that had spares.... I took the boat to them..... They had a look at it, and found my flywheel was jammed... (not a good feeling). They put a big spanner onto it and got it free.... that was a bit of a relief.... They also checked the spark plugs... they'd gone rusty Which I'm told is due to water in the fuel... So I bought a fuel filter... (havn't put that in yet) So got new spark plugs, new starter motor..... Off to the boat ramp..... Tried to start it a few times... rrrrrrr rrrrr rrrrr then I stopped and turn the key off..... Heard a noise from the engine and I took the cover off.... the starter motor still had power on it... it was still spinning.... about about another minute it stopped. (It wasn't touching the fly wheel while it was doing this) Tried starting it again and eventually away it went.... We went out for a few hours and all was fine.... although I didn't have as much power as normal.... one of the other guys I was with said the choke isn't coming off fully... they fiddled a bit and I got power back.... A couple of days later I took it away on a holiday (on the trailer). First day of use it was fine...Pulling people on a donut thing and all. Second day was ok most of the time but I was losing power a bit sometimes... Third day it wouldn't start.... just a click.... ARGH! Tried about 10 times... check fly wheel, that was ok.... but all I get was a click from somewhere...... Fiddled with the gears etc.. nothing.... eventually it started....off we went.... about a 1 hour boat trip up the river.... It was fine most of the time, but I hit a log in the water and I lost power after that.....I couldn't get much grunt out of it... (I've been told this could be due to the propeller getting bent, but I checked this later and it doesn't appear to be bent). Anyway... we pulled over... didn't about and hour of fishing...then went back. Started ok.... The next day I took it out again, back closer to home.... Same problem as before.... just a click when trying to start it.... Luckily there was another boat at the ramp which was having problems starting.... and they had a cousin there who was a boat mechanic He jumped onto the boat.. checked a few things, then he used my portable jump starter thing directly on the starter motor while I turned the key....after about 30-60 seconds of trying, it started.... So he said my solenoid was faulty..... Took the boat out for about half an hour.... couple of hours fishing.. and it started first go. Pulled the boat out of the water.... I didn't get to wash the boat till abotu 5 hours later... but same problem when trying to flush the engine.... couldn't start..... Use the jumper started on the starter motor and awy she goes after a while... Now for my questions Initally I said the starter motor wouldn't stop spinning...... Could that have something to do with the solenoid not letting go??? I'm hoping, if the solenoid is replaced, it will fix that problem and the starting problem.... but just wondering if there could be any other things wrong....The solenoid thing must work a bit cause the engine does start by itself if it has been started in the last couple of hours....Does the solenoid thingy do any work once the engine is running? Just thought that if we had to bypass it to start the stater motor, then it never really gets used, therefore why does it start it when the engine might be a little warmer? Yes the starter staying on does sound like a stuck solenoid, but the "click" symptom may or may not be related to the solenoid. It's almost certainly a bad connection in the heavy starter wiring from the battery, + &/or -. You can sorta isolate the likely place by checking the voltage (with a cheap $10 multimeter) progressively along the route (where ever you can get access at heavy lead connecting points) commencing at the battery & ending at the starter itself. Do this while someone holds the key on start for you. Also feel where ever there's a connection, the offending connection(s) will get warm to hot very quickly. Of course you can just go through all of them, clean & re-tighten one by one. Once running the solenoid does nothing, only on cranking. It's probably got a bit of rust or grunge etc, try giving it a good clean & activate it a few times with the starter wire disconnected, to satisfy yourself it's operating feely etc. A "little" say WD40 is OK to encourage it but don't overdo it, you don't want oil on the heavy load contacts. On that last day out, I started using Unleaded petrol (the days previous to that I was still using leaded). Some people say I may need a tune up once I start using unleaded? The unleaded fuel shouldn't effect the starting. I'm really just trying to prepare before I contact the repair guy to fix some stuff The person that helped me start the engine is a mobile mechanic (doesn't have a shop), I will probably call him to fix up the problems..... The starting thing might be something that he can do on land.... but a tune up and loss of power etc, that would have to be done in the water, is that right? He should be able to tune it OK not in the water, but you should prefer a water test to make sure you're happy. An 81 engine is not young as of a week ago it's what 23-24 yrs old??? it will probably be a bit down on power but still serviceable if cared for. When you stop using it for any long amount of time say months, consider letting some protective oil remain in it. You can get spray cans of fogging oil (or just buy light oil & use a household trigger sprayer), with the engine idling just spray a little in each carb (air silencer off) or till the engine stalls on account of it. This will coat the needle roller & ball bearings with oil, then squirt a little down each plug hole & finger tight only put the plugs back in leaving the leads off. When you want to start using it again, take the plugs out & give it a crank or two to make sure any excess oil has been thrown out , plugs in, leads & it'll last much longer. K Any views or help would be most appreciated Regards Glen |
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