engine overheating
I have a yanmar 2GM20F installed in a Plenamar 300 with the following
problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
Clogged raw water intake?
"jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
Clogged raw water intake?
"jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
"Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
"Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
"Leanne" wrote in message ... "Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
"Leanne" wrote in message ... "Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
You should be able to verify the intake end, including the pump, simply by
disconnecting the pump output and turning the engine over for a few seconds with the compression releases open. It should pump a good stream immediately. I assume you have done that from your comment of "pump is working." The next step is the heat exchanger, which can be clogged, and following that is the exhaust elbow. If you have flow from the pump, you can disconnect the line from the heat exchanger to the elbow and turn it over again. One of my engines carbons up the elbow so quickly enough that I pull it and scrape it out every year or two. Its only a 1 hour job if you have the gaskets and the wrenches that can reach the nuts. Its also possible that the exhaust pipe or muffler has a problem, but the engine wouldn't start if the exhaust was actually clogged. -jeff "Leanne" wrote in message ... "Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
engine overheating
You should be able to verify the intake end, including the pump, simply by
disconnecting the pump output and turning the engine over for a few seconds with the compression releases open. It should pump a good stream immediately. I assume you have done that from your comment of "pump is working." The next step is the heat exchanger, which can be clogged, and following that is the exhaust elbow. If you have flow from the pump, you can disconnect the line from the heat exchanger to the elbow and turn it over again. One of my engines carbons up the elbow so quickly enough that I pull it and scrape it out every year or two. Its only a 1 hour job if you have the gaskets and the wrenches that can reach the nuts. Its also possible that the exhaust pipe or muffler has a problem, but the engine wouldn't start if the exhaust was actually clogged. -jeff "Leanne" wrote in message ... "Ray D" rayd at gis.net wrote in message ... Clogged raw water intake? I would also check the raw water strainer and when the impeller was changed, was it whole or was there a piece missing that could have moved into the cooling system. Leanne "jzlatar-genesis" wrote in message om... I have a yanmar 2GM20F installed in a Plenamar 300 with the following problem, No water coming out of the exhaust pipe with the result of overheating and the pump is working with a new impeller, what could be the reason for it and the solution. Thanks in advance Jzlatar-geminis |
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