Yanmar 240 What is This?

[Dan0]

The cover with the 2 allen bolts are leaking. it is the part above front axel that is painted Gloss black with the paint coming off and some kind of rubber round boot on the bottom.

 

[Peter 315]

My guess is a hyd pump....

 

[Dan0]

I need to find a gasket, the front cover is leaking and I can't find the image on the net.

 

[Peter 315]

You try Hoye tractor parts....Yanmar Tractor Parts

 

[Dan0]

Could not find anything there. Hope someone else chimes in.

 

[Peter 315]

Call them on Monday. They post on here but not every day..

 

[California]

YM240 is a US version Yanmar. Call a Yanmar dealer to order the part for you.

 

[bmaverick]

The cover with the 2 allen bolts are leaking. it is the part above front axle that is painted Gloss black with the paint coming off and some kind of rubber round boot on the bottom.View attachment 683343View attachment 683344

It's the Hydraulic Pump 7cc

Pg 172 thru 176 in the YANMAR YM195 YM240 PARTS MANUAL 000Y00T2381.PDF Over at the Yanmar Tractor Owners Group on GroupsIO.

 

[winston1]

O-RING 1A S-48.: Yanmar Tractor Parts

 

[rScotty]

It's a hyraulic pump. There are two hydraulic pumps on the YM240 - one low pressure type for the engine oil and one much higher pressure and flow rate for the 3pt operation. Checking the oil that is leaking will tell you which one you are dealing with. Engne oil is typically black with soot. Trans/Hydraulic oil is clear to milky. BTW, milky = water in the trans/hydraulic system.

Either way, I wouldn't just jump up and try to cure a leak unless it is leaking enough to lower the oil level. Here's why:

Hydraulic pumps generally don't have gaskets. They are made to an extremely close tolerance with polished surfaces and sealed with O-rings.
The type of O ring is critical, and you want an original Yanmar rather than a USA replacement O ring. We can talk more about the difference in O rings if there is any interest.

But before doing anything, you should check which pump it is and if the oil level is low.
Here's some YM240 info: