Overheating

[Car Doc]

You wouldn't necessarily have to get a genuine Yanmar sender if you flat cant find one it could be something from another application that happened to be metric and screw in say a Honda or Toyota for instance.

You would have to take yours in and match it up but they can look the specs up on them and tell you what the temp range is for your information.

I am using a Toyota oil pressure sender on my 3810 simply because I have them on hand senders all work pretty much the same once you understand them fwtw.

 

[California]

just scrolled down below this discussion and found this:
Overheating Information
http://www.tractorbynet.com/forums/yanmar/105515-overheating-information.html

You found the real pros in that post. Three of the best, most experienced Yanmar dealers. They know what they are talking about.


Here's what Yanmar says. YM240 Operation Manual page 71:

IMPORTANT

The mixture ratio of anti-freeze must not exceed 40% to avoid overheating during the summer.

If you added anti-freeze more than 40%, drain coolant after the cold weather passes.

Determine the ratio according to the lowest expected temperature and instruction of its anti-freeze.

 

[California]

You wouldn't necessarily have to get a genuine Yanmar sender if you flat cant find one it could be something from another application that happened to be metric and screw in say a Honda or Toyota for instance.

You would have to take yours in and match it up but they can look the specs up on them and tell you what the temp range is for your information.

I am using a Toyota oil pressure sender on my 3810 simply because I have them on hand senders all work pretty much the same once you understand them fwtw.

Agree. Yanmar used some of the same Hitachi peripherals that Datsun (Nissan) used back in the day. (Early ~ mid 70's when YM2000 was designed).

That light is nothing more than a boilover-anticipation warning. Seems to me that a generic sender for a Japanese car that also used a 13psi radiator cap (same boilover temperature) is sufficient. - Assuming that the threads, electrical connector, and how far the sensor extends into the coolant, are the same.

 

[Car Doc]

Yup thats true I would also say most temp lights are calibrated around 215-225 degrees but that's a guess as to what Yanmar intended?

I forgot to mention that a bad connection could add more resistance to the circuit and throw it off also possibly causing it to light pre-maturely.

My tractor when I got it the oil light would constantly go on at a hot idle and it turned out to be a bad ground where the cowling is bolted to the floor pan the bolts were loose and there was paint all over insulating it.

 

[normde2001]

Are you sure it's the temp light? You did not answer the question about enough water in the overflow bottle, it probably has it's own light. Running water through the rad does almost nothing. You need to BACKFLUSH the system. Disconnect the upper hose at the radiator. Stick a garden hose into the rad hose and seal as well as possible with shop rags. Remove the rad cap and turn on the water. Let the water run out the top of the rad until it runs clear. It should take the full force of the water, if clean. You may need to put plastic over the electrics. This goes for any water-cooled vehicle, except that if it has a t-stat it must be removed.

 

[clemsonfor]

Norm, she has a ym2000, there is no light for the bottle. At least on mine and the others i think. You can run it with no bottle and let it overflow onto the ground and no light will ever come on. There is no wires or anything to the bottle, let alone to the front of the engine fwd of the fan, other than the headlights.

 

[ritchieb]

Like many other tractor owners here in WV we have steep hills and of course this means pushing our smaller compact tractors to their limits. When I first purchased my 1610D back in 2007, Wayne at LMTC suggested I use a product called Redline water wetter. I had never heard of it and began looking at some of the auto parts stores. Turned out that Advanced Auto carried it so I tried a bottle that summer. Take it from someone who uses it, it works. I stick with 70% water, 30% glycol, and add water wetter to the ratio suggested. Just follow the others advice on keeping everything clean and try this sometime, I think you will be pleased with the results. Link info is: Red Line Synthetic Oil - Water Wetter® Coolant Additives

 

[normde2001]

Norm, she has a ym2000, there is no light for the bottle. At least on mine and the others i think. You can run it with no bottle and let it overflow onto the ground and no light will ever come on. There is no wires or anything to the bottle, let alone to the front of the engine fwd of the fan, other than the headlights.

Maybe just on the YM2000B.

 

[California]

Norm you have the fancy modern version.

These earlier ones don't have gauges for fuel, for battery water, for the overflow tank (or even an overflow tank, on some of them), or a fuel shutoff solenoid, or a fuel lift pump, or a thermostat. Or a hydraulic filter (just a reusable wire mesh sieve). Or a no-start switch on the pto, or under the seat. I don't know if the clutch safety switch was on all of them. The YM2000's had water pumps but the next size smaller didn't.

I think this simplicity is why these are still pretty inexpensive to keep in running condition now.

 

[normde2001]

Norm you have the fancy modern version.

These earlier ones don't have gauges for fuel, for battery water, for the overflow tank (or even an overflow tank, on some of them), or a fuel shutoff solenoid, or a fuel lift pump, or a thermostat. Or a hydraulic filter (just a reusable wire mesh sieve). Or a no-start switch on the pto, or under the seat. I don't know if the clutch safety switch was on all of them. The YM2000's had water pumps but the next size smaller didn't.

I think this simplicity is why these are still pretty inexpensive to keep in running condition now.

yep, I'll have to add that to my list of things the YM2000B has that the YM2000 does not.

 

[BurningBushFarm]

Are you sure it's the temp light?

Yeah. Sticker thingey right under it says:

TEMP



Will check the connections again on sending unit. I would say it comes on when it's below 190 for sure.

Will try the hose flush. Also the water wetter.

As for the bottle --- I kinda thought the coke bottle I saw on one of the other threads that other guy had on his was cute. :laughing:
But I have the usual one -- and there doesn't seem to be any overflow going on that I have noticed.

Would I notice when I lift the hood? (Hubby's off at CAP so I can't ask him.)

 

[Gary Sweat]

Norm you have the fancy modern version.

These earlier ones don't have gauges for fuel, for battery water, for the overflow tank (or even an overflow tank, on some of them), or a fuel shutoff solenoid, or a fuel lift pump, or a thermostat. Or a hydraulic filter (just a reusable wire mesh sieve). Or a no-start switch on the pto, or under the seat. I don't know if the clutch safety switch was on all of them. The YM2000's had water pumps but the next size smaller didn't.

I think this simplicity is why these are still pretty inexpensive to keep in running condition now.

My YM1900 has a water pump. I thought that was the next size smaller than a 2000. Is there one in between? Then again, when I see information listings for Yanmars, the 1900 is usually missing from the list.:laughing:

 

[California]

My YM1900 has a water pump.

Oops. Likely that model was the prototype for the whole YM2000 etc series!

I overgeneralized.

 

[Car Doc]

BBF,

I found your sender whilst looking for hood decals for a Yanmar the factory part # is 121250-44901 and the replacement sender is TS-44901. hth

(the accuracy of this info is not guaranteed use at your own risk)

 

[normde2001]

Are you sure it's the temp light?

Yeah. Sticker thingey right under it says:

TEMP



Will check the connections again on sending unit. I would say it comes on when it's below 190 for sure.

Will try the hose flush. Also the water wetter.

As for the bottle --- I kinda thought the coke bottle I saw on one of the other threads that other guy had on his was cute. :laughing:
But I have the usual one -- and there doesn't seem to be any overflow going on that I have noticed.

Would I notice when I lift the hood? (Hubby's off at CAP so I can't ask him.)

Who'd a thought the Japanese word for TEMP was TEMP? If you fill the rad completely, and fill the overflow bottle to the cold mark, when it reaches op temp the bottle should be 1-2" fuller, then recede back to cold mark after cool down. It takes a little ingenuity, but you can test those senders in boiling water, at least to assure it does not turn on at or below 212*.

 

[clemsonfor]

I dont think it is? That is strange though, just like the oil one says oil under it, i dont think thats oil either as well as charge or alt, whatever is written under that light. :laughing: These tractors seem a little old to use english as a universal language as i dont think it was as big in the 70s and 80s.

The strange thing is the original stickers have jap caracters on them but the lights are english? This is original cause everyone has them not just the VN owners. I guess it has something to do with the fact that they are sold all over?

 

[normde2001]

BTW, Hoye's YM2000 temp sender says "for warning light".

 

[BurningBushFarm]

Who'd a thought the Japanese word for TEMP was TEMP?

Well darn. Something is screwed up at flickr and they've made it so I can no longer post my pictures from there. Took s picture just for you guys. Humph.

My guess is the English labels were added by Corriher (Newton, NC) when they sold them. The casting for the shift has English numbers.

 

[clemsonfor]

Who'd a thought the Japanese word for TEMP was TEMP?

Well darn. Something is screwed up at flickr and they've made it so I can no longer post my pictures from there. Took s picture just for you guys. Humph.

My guess is the English labels were added by Corriher (Newton, NC) when they sold them. The casting for the shift has English numbers.

All the ones i have seen have the english words on them? Why dont you just post your pics directly here? Its really easy click the manage attachements button under the reply box and then select the location on your computer or external device. Then hit submit or something like that then close the box that popped up and then hit submit reply, they will be thumbnailed in the post.

 

[BurningBushFarm]

Okey dokey. (Well that's cool. I wondered how you did that.)

This is to illustrate my English TEMP label on my Japanese tractor.

And my Japanese labels.

Just for fun.

(They stuck the appropriate English labels here and there.)