Thermo - siphon cooling system question

[billrigsby]

This is a general newbie to thermosiphon cooling systems question.

While doing some mowing today I noticed there was a little bit of coolant coming out of the overflow / whistle. The whistle never actually whistled.

I rode her back up towards the shop put a large towel over the radiator cap and took it off there was no pressure, and it did not look to me like the coolant was flowing like you would see in a normal cooling system.

The upper radiator hose was relatively hot, and the lower radiator hose was barely warm.

I'm just wondering if this system is working properly, I have no idea what to expect, I have never had one of these systems before. Any insight would be helpful.

 

[Steve NC]

It might be time for a new radiator cap? Might be a good idea to have it checked or simply replace it. Most of the Kubotas use a standard size 13psi cap that you can pick up from any auto parts store.

 

[North Idaho Wolfman]

Yes it's working right!
They don't flow like a pumped system.
Make sure you clean the radiator often when mowing.

 

[billrigsby]

Make sure you clean the radiator often when mowing.

You got that right, the front screen was coated with "mowing remnants"

 

[85Hokie]

Yes it's working right!
They don't flow like a pumped system.
Make sure you clean the radiator often when mowing.

as NIW said , it is working right,
now on another note - if you place to MUCH water/ec in there - it will spit some out on it's own......typically, the fluid is about 1/4 - 1/2 below the neck. Now too little water, and you will have a cluster......duck....

keep them fins clllleannnn! I placed a temp meter on mine so I can pay attention while I am cutting the tall stuff!

 

[billrigsby]

I placed a temp meter on mine so I can pay attention while I am cutting the tall stuff!

Gauges are definitely on my to do list