Yanmar 1510D Overheating: Yanmar Tractors  -- Other Tractor Brands Discussion Forum and Review Yanmar 1510D Overheating: Yanmar Tractors -- Other Tractor Brands Discussion Forum

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 03-22-2003, 16:40 Post: 51629
Ralph Shaffer
2003-03-22 16:40:38
Post: 51629
 Yanmar 1510D Overheating

The temp guage lights up on my Yanmar 1510D after about 10 minutes of light duty work. When I feel the top hose, it doesn't really feel that hot. Should I ignore or panic?






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 03-22-2003, 16:55 Post: 51630
Peters

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 Yanmar 1510D Overheating

Have you checked your water level in the rad? No water no heat in hose.
I would check the electrical connections to the heat sensor etc. Also check the temperature on the block near the senor.






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 03-22-2003, 22:16 Post: 51647
Ralph Shaffer
2003-03-22 00:00:00
Post: 51647
 Yanmar 1510D Overheating

Radiator is full to brim, overflow tank is half full. Thank you for your response. What do I do to register temp of the block near the sensor?






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 03-22-2003, 23:18 Post: 51652
lsheaffer



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 Yanmar 1510D Overheating

If the hose is not hot , I'd suspect a bad sending unit. I can supply you with them if you need one.






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 03-23-2003, 06:28 Post: 51663
TomG

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 Yanmar 1510D Overheating

Testing procedures for my Ford (with a gauge) is to check for 12V at the gauge and then remove the lead at the sensor and touch it to ground. The gauge should go from cold to full temperature. If it does the sensor is replaced, if it doesn't the gauge is replaced. Maybe somebody knows enough about Yanmar electrics to say if my Ford procedures can be adapted for the Yanmar.






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 03-23-2003, 17:09 Post: 51716
marklugo



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 Yanmar 1510D Overheating

Guys, I think that this may be a case of missing the obvious. How about the thermostat? A malfunctioning thermostat would cause the exact symptoms listed.






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 03-23-2003, 19:12 Post: 51726
lsheaffer



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 Yanmar 1510D Overheating

It is obviously not a malfunctioning thermostat since the YM1510 doesn't have one.






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 03-23-2003, 19:31 Post: 51727
bruce1966us



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 Yanmar 1510D Overheating

Len is correct.

Thanks,
Bruce






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 03-24-2003, 06:23 Post: 51736
TomG

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 Yanmar 1510D Overheating

I've got to plead guilty here. I didn't know they don't have thermostats either. Unlike MarkL, I simply missed an obvious explanation. Good thing there's always somebody around to fill in the specifics.

It used to be common practice to take out thermostats during the summer. Mostly on 50's and earlier Fords where the cooling systems never seemed to be up to the job--particularly on hot days and in high altitudes. Far as I know, it never cured over-heating problems but it might take a little longer to over heat, which of course might get you over a Colorado mountain pass. Some people said taking the thermostat out actually made an engine run hotter. With unrestricted flow, coolant may not stick around as long in water jackets or the rad. Don't know about that idea though. another obvious idea I missed is to blow out the rad screen.






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 03-28-2003, 04:32 Post: 52035
Ralph Shaffer
2003-03-28 00:00:00
Post: 52035
 Yanmar 1510D Overheating

Today is the day of reconing.Or reconditioning. I'm going to boil out the radiator, then see what happens. I have already discovered that the outside of the radiator was about 30% blocked with mud. Maybe this thing got too deep in the rice paddy. I appreciate all your comments,especially the ones about the thermostat since I looked all over for the thing.






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Discussion Boards > Active Subjects > Messages as Posted > Yanmar Tractors Forum

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Big Dave 1 | bruce1966us 1 | bubbadoc 1 | greybeard 1 | lsheaffer 3 | marklugo 1 | Peters 1 | Ralph Shaffer 3 | TomG 3 |




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