Overheating Information

[Inspector507]

He's still around. Post made this month, just not about Yanmars. He still reads, I imagine.

 

[California]

California showed the same thermometer i got. I think i paid like 12.99 on sale? Does that sound right Cali?

That HF Infrared Thermometer photo I linked above has a laser pointer to show a red dot where you are measuring.

I have HF's simplest 'Non-Contact Pocket Thermometer', same thing but smaller and no laser dot, it just measures whatever in front of it. It was $9.99 at HF's Parking Lot Sale.

Anything that works like this will be fine.

 

[clemsonfor]

He's still around. Post made this month, just not about Yanmars. He still reads, I imagine.

Yea hes still on TBN not the yanny forum. I saw o post in the attachement forum or somewhere the other day he made in a thread i posted in as well.

 

[kenmac]

my temp light came on twice this year. cleaned the grass seed out of the rediator each time & the light went off. Now that I've got the loader. Maybe the bucket will catch all or most of the grass seed. Another reason to get the loader

 

[clemsonfor]

my temp light came on twice this year. cleaned the grass seed out of the rediator each time & the light went off. Now that I've got the loader. Maybe the bucket will catch all or most of the grass seed. Another reason to get the loader

I think that is wishful thinking. I make a point to stop and clean mine every 15-45mins depending on the type stuff im in longer if it is clean each time.

 

[TerryShugart]

Interesting that 70/30 is suggested for high temps.
In my world average day time temps are 95+ from June to Sept (SW FL). In my LIQUID cooled engines most (non diesel) all recommend a 50/50 glycol water mix. These engines are in relatively high performance motor cycles (100 HP 900 CC) and V8 trucks. If you try to run more water say 70 water versus 30 glycol you will overheat the engine.
If you read the small print on a jug of your favorite antifreeze (glycol) you'll find that the highest boiling point is for a 50/50 mix. Point is that if it doesn't boil out it will still cool the engine. So I'm at a loss as to why and higher water mix would work better in higher temps in a diesel tractor.
Terry

 

[phatgemi]

Interesting that 70/30 is suggested for high temps.
In my world average day time temps are 95+ from June to Sept (SW FL). In my LIQUID cooled engines most (non diesel) all recommend a 50/50 glycol water mix. These engines are in relatively high performance motor cycles (100 HP 900 CC) and V8 trucks. If you try to run more water say 70 water versus 30 glycol you will overheat the engine.
If you read the small print on a jug of your favorite antifreeze (glycol) you'll find that the highest boiling point is for a 50/50 mix. Point is that if it doesn't boil out it will still cool the engine. So I'm at a loss as to why and higher water mix would work better in higher temps in a diesel tractor.
Terry

Well I'm sure someone more knowledgable will chime in but it's my understanding that the 70/30 mix is the optimum for the thermosiphon cooling system. It's this percentage mixture that is good for max circulation and cooling. I'm not all that scientific but the yannie engineers say it works and so do many others. YMMV......

 

[TerryShugart]

Maybe but the Yanmar service manual I have (YM276) says to use a "Permanent" type ethylene glycol anti-freeze. If you read the label on the jug of same it says 50/50. I've never seen a Permanent type anti-freeze coolant that wasn't 50/50 but maybe there is something else around, and I do live in a pretty hot area.

Terry

 

[winston1]

Not necessarily recommended for high temperatures but for the thermo syphoning systems. This explains it pretty well. Yanmar Tractor Overheating

 

[phatgemi]

Should point out also that the 70/30 recommendation is for the models that DO NOT have waterpumps. Those are the models which survive on the thermosiphon system. Believe I'm correct on this......