Braided hose from bottom of radiator TX1510

[ballaterach]

Hi Folks there's a braided hose which goes from the bottom of the radiator on my TX1510 seems to go into the engine blcok at the other end can anyone enlighten me as to its purpose.....and a part number as its very worn....

 

[goeduck]

Good question, I looked at that on my TX2140 as well. About the size of a fuel line?

 

[ballaterach]

Good question, I looked at that on my TX2140 as well. About the size of a fuel line?

Yes 10mm approx.....

 

[Quarryscapes]

Isn't it the thernostat bypass hose?

 

[California]

I don't know if this explains it, but old Yanmars had that lower hose with a drain cock that seemed to be designed to assure the block got entirely drained when the radiator was drained for the winter. Ditch water is cheaper than year-round antifreeze! Back when the owner manual described this, and running without a battery. Both 'features' aimed toward the rice paddy farmer who used the tractor for rototilling only a few days per year. (The tiller was in some cases semi-permanently mounted, not 3-point.) Thermostat? No thermostat, in my ancient Yanmar.

So you might be seeing a 'feature' that's a holdover from an ancestor model.

 

[goeduck]

Here is a picture of that braided water line on my TX2140F.

 

[Gregster613]

Here is a picture of that braided water line on my TX2140F.
View attachment 876164

goeduck, I've got that exact same line on my TYM273 and I just "assumed" it was for completely draining the block whenever one was to change out antifreeze. I have no other answer for you - wish I had one for myself!

 

[goeduck]

It makes sense that line would drain the block when draining the radiator as others have said. Sure are good little engines.

 

[goeduck]

I don't know that a fuel line would not be a good replacement.

 

[SPYDERLK]

I use sections salvaged from a Craftsman premium rubber water hose that got mowed for lower coolant lines of that size. I think they are actually superior to OEM, and FREE.

 

[Quarryscapes]

Any 1/4" bore coolant rated hose will do. Mine was completely blocked with sludge, and the little brass union at the block end too. As suggested earlier, it is there to drain the block completely.