Oil & Fuel YM2500 Pushing Coolant Out the Radiator

[Travis_R]

If you are getting bubbling in the radiator like that, you have a bad head gasket. Combustion chamber pressure is being forced into the coolant passages.

It is definitely getting bubbling

 

[Travis_R]

Fredrick's is Top Notch! Refurb. Tractor and parts. I actually have been there! Drove from ATL. Ga. for a Yanmar Tiller. Many Yrs. ago though! My church Purchased the Refurbished YM2500. Retired Catholic Priests retirement home. I cut the property with my YM2000 until I no longer could. The YM2500 and my all Org. YM2000 came from Spalding in Ga.. Who was Fredrick supplied. What the 2000 looked like in 2008 when I bought it. I still have and use it to the day!

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That’s a nice YM2000 you have! I got an appointment with my mechanic Wednesday morning to see what he has to say about the tractor.

 

[Travis_R]

That’s a nice YM2000 you have! I got an appointment with my mechanic Wednesday morning to see what he has to say about the tractor.

After seeing coolant being pushed out the radiator, without the engine being hot, I have literally lost sleep over this. I am scared to DEATH. Haven’t even paid the 1st note on the tractor yet.

 

[careyo63]

If it's that new to you something must have been missed that showed up. Small crack etc.. Several things it could be. It's under warranty if it is a Refurbished Tractor. I wouldn't be that worried about it! If so and If I recall you just have to get back to them. Not sure that's even true! Never heard the first complaint about them. Warranty or getting a problem taken care of. Really nice people to deal with!!
I had a problem with a PTO shaft on the Tiller. We dug out the wrong one that was to long so really there was nothing wrong with it. Had a new one to me in a matter of a couple days and they told me to keep the old one. Which I passed on to another member on here. Pay the shipping and he was welcome to it. Here's the proof! I was able to shorten it in a matter of a couple Hrs.. Last Tiller they had and actually had to dig it out of a back warehouse.
Yanmar heaven IMHO.... It was for My mothers Garden and sold it for what I paid them for it Yrs. later. Bought it used ASIS on top of that!!!! notice the two PTO shafts so there's the proof.

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You can see my poor welding skills but Hey It worked.

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[Travis_R]

***UPDATE 12-16-2024***

Good news & Bad news.

Bad news is not only does my YM2500 need a new head gasket, it also has to have another head.

Good news is my mechanic and I talked to Danny at Fredricks Equipment and he is sending us all the gaskets needed to put it back together, 3 new lowers seals for each injector, and a new cylinder head! Fredricks is definitely doing the right thing and definitely stands behind what they sell, and stands behind their customer!
Everything should be here within a couple days.

 

[ruffdog]

This thing has been worked on recently and not by a decent mechanic either. The head and cylinder deck surface of the block looks like it was cleaned with a hand grinder course grit wheel. WTF! I have all sorts of precision quality gasket scrapers and razor blades to VERY carefully clean those surfaces.

 

[Travis_R]

This thing has been worked on recently and not by a decent mechanic either. The head and cylinder deck surface of the block looks like it was cleaned with a hand grinder course grit wheel. WTF! I have all sorts of precision quality gasket scrapers and razor blades to VERY carefully clean those surfaces.

My mechanic said the exact same thing! He said the engine has been into and that the head looked like it had been “cleaned” with a grinder! I’m very Blessed and Thankful that Fredricks is sending me a brand new, loaded cylinder head.

Travis

 

[bmaverick]

My mechanic said the exact same thing! He said the engine has been into and that the head looked like it had been “cleaned” with a grinder! I’m very Blessed and Thankful that Fredricks is sending me a brand new, loaded cylinder head.

Travis

Be certain to shop-vac all the metal crud out of those cylinders too. Then the carbon removed with a simple cleaning solvent mopped up with a non-abrasive towel or rag. Lastly, a thin coating of lite oil around the edge of the piston to the wall, all the way around. Remington oil (REM oil) would work.

A good diesel mechanic would know what to do with these Japan made engines.

Thanks for the images. Glad it was only the head side touched and not the block!
I zoomed in and carefully looked for any signs of cracks.

 

[Travis_R]

Be certain to shop-vac all the metal crud out of those cylinders too. Then the carbon removed with a simple cleaning solvent mopped up with a non-abrasive towel or rag. Lastly, a thin coating of lite oil around the edge of the piston to the wall, all the way around. Remington oil (REM oil) would work.

A good diesel mechanic would know what to do with these Japan made engines.

Thanks for the images. Glad it was only the head side touched and not the block!
I zoomed in and carefully looked for any signs of cracks.

Thank You! Yes, my mechanic definitely knows what he’s doing. Only thing I had to get for him were torque specs and valve settings. He said everything looked good other than the cylinder head.
According to FedEx tracking, my parts will be here Wednesday, 12-18-2024. This is the 2nd time I’ve got an order from Fredricks Equipment and it only takes 2 days to get here, thankfully.

 

[Travis_R]

***UPDATE 12/21/2024 Saturday***

The new Cylinder Head & Gaskets arrived Wednesday, December 18th from Fredricks. Everything was there except for one small gasket. It’s the gasket for the end plate on the cylinder head.

I called Fredricks yesterday, December 20th, to get an invoice emailed to me with a tracking number for the missing gasket.

Things happen. They said it hadn’t been shipped yet because they can’t find any in their inventory. Their computer system says they have some in stock, but they can’t put their hands on them. They will email me an invoice with tracking number and ship a gasket to me once they find them.

I relayed the information to my mechanic and suggested about him making one out of paper gasket material. He said yes that’s fine and he has gasket material in his shop and that he will make one Monday morning, the 23rd.

So as of now unless something changes, it’s looking like the Cylinder Head will be put back on the tractor, Monday, 12/23/2024.

Attached is the picture of the cylinder head end plate that my mechanic is making a gasket for. It’s Yanmar part # 124450-11681.

I hope you all Have a Blessed Weekend!!


Travis