i soo love my yanmar!!!!!!
- Thread starter zeehag
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ross--your engine is a baby --mine is way older than that lol---and i got it on the first one !!!!!!
sure ye dont want a yannie????? .....LOL......and your air temp was warmer than mine when i started the yannie-was only 66 out here!! sounds like ye got a good engine ross!!!
i will make a thread for i love my perkins when i get this one going and the shaft log repaired.....and cutlass bearing replaced......lol:dance:
they dont make the 2 cyl or 1 cyl yannies anymore--very hard to find parts--i use pacwest marine and industrial in shelter island....hav eheard good things about torreson....
I can't wait to get my 2qm20 all together and installed. That gives me a lot of confidence in this engine to hear you say it didn't mind you leaving it all alone for a year and a half.
Not with a 3:1 reduction gear. Like trying to roll start a car in low gear, gotta be in high gear and pop the clutch.
My 2QM20 Survived My Best Destructive Effort this Week!
Yes, the 2QM20 is a stout engine... over-engineered if its robust size and weight is any indication.
I put mine to an unintended test this past week.
Distracted from my usual routine by being at a guest berth and also receiving guests, I failed to open the seacock for the raw water side of the heat exchanger and I also failed to look over the side as I always do to verify water coming out with the exhaust. 10-15 minutes later, in the middle of a narrow channel with grounding depth on either side, we saw a faint hint of smoke in the cockpit. We shut down the engine immediately and as I was springing for the fire extinguisher to shove in the engine area cut-out, I smelled the odor of coolant. Took all of .5 seconds to realize my mistake. I could still hear the sound of coolant venting out of the heat exchanger radiator cap and expansion tank. My first reaction was relief that we weren't on fire! Fortunately, the mainsail had just been raised and the wind was very slight. It was just enough so that my brother and father were able to keep us sailing in the middle of the channel while I went down below to assess the damage. To get to the raw water pump impeller, the altenator must be slacked from the belt and the pump unbolted from the side of the engine. Then finally the impeller cover can be taken off. The impeller was in about a dozen pieces. I just hoped that a piece hadn't lodged somewhere to block the system. Good thing I read on this forum several years ago when I first got into sailing that keeping the previous impeller (if in OK shape) can be a lifesaver. Anyway, got the spare impeller in, and the pump and belt/alternator back in position. Took about 20 minutes from start to finish. I expected that the engine had cooled down enough so that I could add fresh water to the anti-freeze side of the coolant system. The engine started right away and raw water was flowing out with the exhaust. And I could see that anti-freeze was circulating through the contained side. It seemed ok enough to resume the afternoon plan with some sailing.
The next day, we needed to use the engine for four hours since there was no wind to get us home. All seems normal. I can detect no difference in performance, sound, or exhaust smoke/smell. The engine still runs cool. There are no signs of oil, water or fuel leakage from gasket interfaces. I checked the the rubber impeller in the anti-freeze side of the coolant system and it survived unscathed, so we didn't run totally dry there. I think that I dodged a bullet.
Now I know that my overheat alarm ain't working and got to figure out why. And figure out a more fail-safe procedure than my memory for opening the sea-cock.
Yes, the 2QM20 is a stout engine... over-engineered if its robust size and weight is any indication.
I put mine to an unintended test this past week.
Distracted from my usual routine by being at a guest berth and also receiving guests, I failed to open the seacock for the raw water side of the heat exchanger and I also failed to look over the side as I always do to verify water coming out with the exhaust. 10-15 minutes later, in the middle of a narrow channel with grounding depth on either side, we saw a faint hint of smoke in the cockpit. We shut down the engine immediately and as I was springing for the fire extinguisher to shove in the engine area cut-out, I smelled the odor of coolant. Took all of .5 seconds to realize my mistake. I could still hear the sound of coolant venting out of the heat exchanger radiator cap and expansion tank. My first reaction was relief that we weren't on fire! Fortunately, the mainsail had just been raised and the wind was very slight. It was just enough so that my brother and father were able to keep us sailing in the middle of the channel while I went down below to assess the damage. To get to the raw water pump impeller, the altenator must be slacked from the belt and the pump unbolted from the side of the engine. Then finally the impeller cover can be taken off. The impeller was in about a dozen pieces. I just hoped that a piece hadn't lodged somewhere to block the system. Good thing I read on this forum several years ago when I first got into sailing that keeping the previous impeller (if in OK shape) can be a lifesaver. Anyway, got the spare impeller in, and the pump and belt/alternator back in position. Took about 20 minutes from start to finish. I expected that the engine had cooled down enough so that I could add fresh water to the anti-freeze side of the coolant system. The engine started right away and raw water was flowing out with the exhaust. And I could see that anti-freeze was circulating through the contained side. It seemed ok enough to resume the afternoon plan with some sailing.
The next day, we needed to use the engine for four hours since there was no wind to get us home. All seems normal. I can detect no difference in performance, sound, or exhaust smoke/smell. The engine still runs cool. There are no signs of oil, water or fuel leakage from gasket interfaces. I checked the the rubber impeller in the anti-freeze side of the coolant system and it survived unscathed, so we didn't run totally dry there. I think that I dodged a bullet.
Now I know that my overheat alarm ain't working and got to figure out why. And figure out a more fail-safe procedure than my memory for opening the sea-cock.
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HEAR HEAR for the japanese gods of the sea whoinvented the monster that runs so well...aint they great?????
key on the seacock doesnt always work--mine would get too wet--when i lived on board that boat i left open--used it often..lol....when i got new boat--bigger--i leave it in the nav stn..
the first time you do it is the lesson for life......
there is a "feel" when the engine starts without water--is a roughness--not big--just slight---i feel it as an off key song variance, also....LOL--i did that yesterday--lol---as i felt the feel and didnt hear the water flow out the exhaust, i shut her down immediately. when i first got the boat 6 yrs ago, i did that--yipes i was scared i hurt engine--i immediately called elias my yannie man and was told i was still ok but bring her in now--but was prolly ok if didnt do runaway diesel.
rice paddy pumps, eh? awesome.....
yes, ross, volvo engines are also awesome--but so many have written of their problems, i thought i would save the future market for yanniie and speak of how i feel about mine yannie----omg i love yannie----sing to tune of "i love paris" lol.....i love yannie in the morning--yada yada yada...
few more months i will do that for perkins LOL....
key on the seacock doesnt always work--mine would get too wet--when i lived on board that boat i left open--used it often..lol....when i got new boat--bigger--i leave it in the nav stn..
the first time you do it is the lesson for life......
there is a "feel" when the engine starts without water--is a roughness--not big--just slight---i feel it as an off key song variance, also....LOL--i did that yesterday--lol---as i felt the feel and didnt hear the water flow out the exhaust, i shut her down immediately. when i first got the boat 6 yrs ago, i did that--yipes i was scared i hurt engine--i immediately called elias my yannie man and was told i was still ok but bring her in now--but was prolly ok if didnt do runaway diesel.
rice paddy pumps, eh? awesome.....
yes, ross, volvo engines are also awesome--but so many have written of their problems, i thought i would save the future market for yanniie and speak of how i feel about mine yannie----omg i love yannie----sing to tune of "i love paris" lol.....i love yannie in the morning--yada yada yada...
few more months i will do that for perkins LOL....
Yup. Love my 3GMD. Maybe 1980 vintage. I keep the key hanging on a hook on the inside of the door to the raw water seacock. As with others, the exhaust note is different without water. Burning rubber smell from the exhaust hose too when you run it for a while. Don't ask me how I know this, but now I store the key at the sea cock.
I installed one of these when I got my boat and it saved my butt, or at least my exhaust hose once.
https://www.aqualarm.net/store/comersus_viewItem.asp?idProduct=3
It has become a bit of a pain because the magnetic reed switch started sticking after the first season and I frequently have to go below and shove the adjustment sleeve back and forth to shut the alarm off after starting the engine. I'm pretty sure that my engine running near the minimum flow level the alarm is designed for is part of the problem. I've gotten used to ducking below as soon as I start the engine to stop the beeping and I can double check the seacock at the same moment. If I just ignore the beeping, the vibration and higher RPM will shut off the alarm in a couple minutes after which if works reliably.
I would install in in another boat but make sure it was easily accessible in case the switch becomes flaky.
that alarm would come in sooo handy --lol--not always can one really well hear the water noises from the boat---so the perfect pitch way isnt failsafe by loong shot-lol---and cannot see the water come out of formosa--is under helm stn--high up..difficult to hear also....the water intake is under the dinette--that kind of alarm would be perfect in there---deep bilges and dark..lol --person could get lost in there.LOL.
Roger:
Thanks for the reference. I expected that something like the flow alarm switch would be on the market, but I wouldn't have known where to look. I see from the website that for only $20 more they have a complete water flow alarm system kit. I'll sleep on it, but this seems to be a feature that should be on all boats ... primarily mine!
Thanks for the reference. I expected that something like the flow alarm switch would be on the market, but I wouldn't have known where to look. I see from the website that for only $20 more they have a complete water flow alarm system kit. I'll sleep on it, but this seems to be a feature that should be on all boats ... primarily mine!
My engine's heat exchanger is mounted on a bulkhead just under the starboard lazerette seat. Very easily accessible and the raw water hoses go right there. Would be very easy to install the flow switch right there.
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