As the winter has gotten here and I cured the overheat problem, my 79 YSM12 seems harder to start. When the engine is cold, It take a while to start. Without glo plugs, is this normal? Is there any starting aids.
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Garry Elmer
We have a 2QM16 in our 1980 33. It has always been hard to start when the temperature drops. Granted, we don't use the boat when it really gets cold but I have found that a "touch" of ether down the air cleaner snorkel has never failed to start the engine. It provides just enough heat to allow the diesel to start normally after that. I would spin the diesel a bit before trying the ether, just to get the oil circulating. Many people think that ether is a big "no-no" but it's been used for 50 years to help start big truck diesels in cold weather. If you need to use it more than once to start it, then you might have other problems. Just my opinion. Garry http://www.99main.com/~elmergw/111
YSM is a different engine but....
Butch: In the GM manual they recommend that you place the engine in neutral, move the throttle lever to wide open position (the wide open throttle position automatically delays the engine timing). Decompress the engine while pressing the starter button. With the engine spinning return the level to the compression position. Once the engine starts throttle back to a normal operating speed to warm up the engine. I would also recommend that you use 15-40w engine oil and see if this helps too. Stay away from ether, WD-40 etc. I cannot say for sure but have heard that it may cause broken rings (you be the judge). You should also not crank the engine for more than about 15-20 seconds continously. REMEMBER: These are instructions for the GM engine not the YSM. My only question, is when does it ever get that cold in FL?<g>
Butch: In the GM manual they recommend that you place the engine in neutral, move the throttle lever to wide open position (the wide open throttle position automatically delays the engine timing). Decompress the engine while pressing the starter button. With the engine spinning return the level to the compression position. Once the engine starts throttle back to a normal operating speed to warm up the engine. I would also recommend that you use 15-40w engine oil and see if this helps too. Stay away from ether, WD-40 etc. I cannot say for sure but have heard that it may cause broken rings (you be the judge). You should also not crank the engine for more than about 15-20 seconds continously. REMEMBER: These are instructions for the GM engine not the YSM. My only question, is when does it ever get that cold in FL?<g>
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Dave Wilson
They are harder to start in the cold
My '79 YSM12, which Steve Dion has sailed with a lot, is always harder to start when it's cold. Like Steve said, I never crank the starter for more than 15 seconds. Once it starts I let it run all the way up before cutting back on the throttle to make sure it’s running correctly. I also, for whatever reason, think it starts better if I am pumping the throttle lever back and forth. On a couple of very rare occasions I’ve put a quick shot of WD-40 in the air intake; but that would be the exception rather than the rule.
My '79 YSM12, which Steve Dion has sailed with a lot, is always harder to start when it's cold. Like Steve said, I never crank the starter for more than 15 seconds. Once it starts I let it run all the way up before cutting back on the throttle to make sure it’s running correctly. I also, for whatever reason, think it starts better if I am pumping the throttle lever back and forth. On a couple of very rare occasions I’ve put a quick shot of WD-40 in the air intake; but that would be the exception rather than the rule.
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Carl Foster
Re hard starting
Dave Wilson is doing his engine a major diservice.An engine that has sat unused for any length of time[re:cold]has drained most of it's oil back to the crankcase,going to full throttle at startup will promote very rapid wear on dry bearings.Also a diesel fuel injection system does not have an accelorater pump as a gas engine does[diesel goes full rich when throttle is advanced to start]so pumping throttle does no good.
Dave Wilson is doing his engine a major diservice.An engine that has sat unused for any length of time[re:cold]has drained most of it's oil back to the crankcase,going to full throttle at startup will promote very rapid wear on dry bearings.Also a diesel fuel injection system does not have an accelorater pump as a gas engine does[diesel goes full rich when throttle is advanced to start]so pumping throttle does no good.
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Bob
Ether do it or not do it
Yes, the rules do say "NEVER" use ether in a diesel engine. BUT .. for some engines, in some circumstances it's ok. Friend of mine in owns a Beneteau. His starting symptoms on his 2-cyl Yanmar were identical to my SB8. Except, his mechanic said it was ok to use a LITTLE ether. Sort of droplets. A hint of ether, not a lot of spray! Wish I had known that last July when my Yanmar wouldn't start, but 'almost' started (spun faster). WD-40 is works like diesel fuel. But engine stops if fuels supply is clogged. I'm not sure how relative this "cold" is. 60 degrees vs 80 degrees; or 30 degrees vs 60 degrees? In my old Mercedes, (and VW), when the temps dipped below 10 degrees F, we had to change to #10 weight oil (10W-40 was fine down to 0 F. below that had to be 10 weight - period. And definitely harder starting even with glow plugs. Also used a "water supply" auxiliary heater to keep the block warm over night. Is this a 'fresh' or 'raw' water cooled? Again, depends on what 'cold' is .. Bob 'Second Nature'
Yes, the rules do say "NEVER" use ether in a diesel engine. BUT .. for some engines, in some circumstances it's ok. Friend of mine in owns a Beneteau. His starting symptoms on his 2-cyl Yanmar were identical to my SB8. Except, his mechanic said it was ok to use a LITTLE ether. Sort of droplets. A hint of ether, not a lot of spray! Wish I had known that last July when my Yanmar wouldn't start, but 'almost' started (spun faster). WD-40 is works like diesel fuel. But engine stops if fuels supply is clogged. I'm not sure how relative this "cold" is. 60 degrees vs 80 degrees; or 30 degrees vs 60 degrees? In my old Mercedes, (and VW), when the temps dipped below 10 degrees F, we had to change to #10 weight oil (10W-40 was fine down to 0 F. below that had to be 10 weight - period. And definitely harder starting even with glow plugs. Also used a "water supply" auxiliary heater to keep the block warm over night. Is this a 'fresh' or 'raw' water cooled? Again, depends on what 'cold' is .. Bob 'Second Nature'
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Carl Foster
Re hard starting
Here is a point for thought on hard starting.I have a Yanmar 2GM20F in my 27 that got progressivly harder to start after many hours of use it was rebuild time. During it's service life i had gone thru several foam air filters whigh had fallen apart and i thought gone thru the engine. Upon tear down i found massive buildup of foam residue on backside of intake valves thus obstructing airflow-hard starting.My cure was patient counter person at NAPA parts store who found Stihl chainsaw paper filter that fit canister with minor modification.Result is easy starting.I am strictly against ether!
Here is a point for thought on hard starting.I have a Yanmar 2GM20F in my 27 that got progressivly harder to start after many hours of use it was rebuild time. During it's service life i had gone thru several foam air filters whigh had fallen apart and i thought gone thru the engine. Upon tear down i found massive buildup of foam residue on backside of intake valves thus obstructing airflow-hard starting.My cure was patient counter person at NAPA parts store who found Stihl chainsaw paper filter that fit canister with minor modification.Result is easy starting.I am strictly against ether!
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David
Easy to Start
Starting additives are definitely not recommended! My 2QM 20 was so hard to start that the previous owner put on a remote decompression cable control. My solution to the problem was to simply install larger size battery cables. You will notice that most factory installed battery cables are marginal in size, as a result you loose a lot of current.
Starting additives are definitely not recommended! My 2QM 20 was so hard to start that the previous owner put on a remote decompression cable control. My solution to the problem was to simply install larger size battery cables. You will notice that most factory installed battery cables are marginal in size, as a result you loose a lot of current.
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Jim Hague
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Carl Foster
To Jim Hague
Ilive aboard and have spent last half hour looking for number-SUCCESS!7-02718 AIRFILTERreplaces:STIHL 4201-141-0300. Goes on with measurements-HT.2.76"xOD 3.875 xID 2.375.this should get you in business, CARL
Ilive aboard and have spent last half hour looking for number-SUCCESS!7-02718 AIRFILTERreplaces:STIHL 4201-141-0300. Goes on with measurements-HT.2.76"xOD 3.875 xID 2.375.this should get you in business, CARL
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Jim Hague
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