Oil leak

HGM · Jan 28, 2006

Ok guys, looks like my dealer didnt get everything fixed on my YM2000... I'll be handling it from here though.. I have a leak from what I figure(from diagrams I have seen) is the L/H brake drum. It appears to me that this leak is from an o-ring inside, again from the pictures I have seen. If anyone has been in this area and knows for sure, I would appreciate your input before I order tha parts.

kenmac · Jan 28, 2006

I have had my brake cover/ drums off on my 3110, but I don't recall seeing a seal in that area. The 3110 may be different in that area than your 2000 . Shouldn't be a difficult repair though. good luck

YanmarFever · Jan 29, 2006

I dont (think) the YM 2000 has wet brakes.
It could be water & rust leaking out ?
Ernie

normde2001 · Jan 29, 2006

I don't see any leak that I would be concerned about.

HGM · Jan 29, 2006

Ernie,

Its definitly hydraulic oil of some sort. I've attached a link to Hoyes that shows #30 as being the o-ring I suspect. Again, not having been in there before, I'm kind of guessing.. But it looks logical to me. Could the trans fluid be leaking past the o-ring and into the brakes? I noticed that the dealer removed a pipe plug that appears to have been a water drain. This is probably why its leaking worse than when I took it in.

Norm,

It didnt really show up very good in that picture. However, it leaves a puddle on the floor overnight and coats the trans housing pretty well...

Thanks for the replies guys..

YanmarFever · Jan 29, 2006

Greg, you're right about the plug being a drain hole for water.
As far as the oil leak,you also right about the seal.
Its a dirty job to replace that seal so far back in there /forums/images/graemlins/frown.gif, but it can be done in an afternoon.

If your brakes are in so-so cond. you might replace both sides while you're at it too.

Im sure Aaron at Hoye tractor has the parts you need.

Ernie

HGM · Jan 29, 2006

Well, thats what I was looking for.. I'll be ordering the o-rings and gaskets this week.. Aarons got a pretty good deal going with the manuals and parts online, makes things easy. Now the work will begin.. Can I assume I wont need any special tools? Thanks Ernie.

YanmarFever · Jan 29, 2006

You might want to use a drill or small grinder with a wire wheel on it to clean the inside of the brake drum.
Wear a welding helmet or a face shield when you do this.
Ernie

HGM · Jan 29, 2006

Thanks again, I appreciate the info..

kenmac · Jan 29, 2006

I had the brake drum off on my 3110 .I don't remember the size of the nut that holds the drum on ,but it will take a large socket to remove it.If the drum has never been off it may be difficult to remove .I think I used a dead blow hammer to get it loose.Good luck

mark777 · Jan 29, 2006

HGM,

I want to think there is a seal in there as well as the "O" ring...just not certain. On many of the smaller models you have to pull the top of the case to remove snap rings before the drum will slide out. Not sure about the YM2000.

I only mention this because I had to replace the whole hydraulic case as someone tried to remove the drum without removing the snap rings...$700 (used). Also, if the shoes are oil soaked then they never seem to work correctly again.

Good luck,

Mark

HGM · Jan 29, 2006

Good tip Mark, I appreciate it.... Looks like I should tear it down before ordering parts..... /forums/images/graemlins/crazy.gif

HGM · Mar 19, 2006

Well guys, got an update for you on my leak.. Hope these pictures can help someone else too..(give you an idea whats in there)

I finally had a free day to tinker with my leaking "brake" /forums/images/graemlins/smirk.gif.. It wasnt the brake..

HGM · Mar 19, 2006

The leak actually does come from the o-ring I was thinking it was.... The problem is that it is on the differential carrier /forums/images/graemlins/blush.gif..

HGM · Mar 19, 2006

Another veiw...

HGM · Mar 19, 2006

In this one you can see, in the top left, the differential bearing(next to the ring gear).. The cast iron part to the left of the bearing, is the peice that needs to come out.. /forums/images/graemlins/crazy.gif The whole chunk..... Unfortunatly, what cant be seen in the picture, is that the differential drives an axle on each side through gear reduction.. The problem is that in order for the gears to mesh, this bearing housing (that I must remove) is notched out to allow the gears to mesh.. For me to get the housing out to replace the o-ring, I must remove the rear cover(where the PTO comes out) allong with the PTO shift linkage.. Then the axle gear must be removed, just so I can get this housing out and replace this $2(?) o-ring..... /forums/images/graemlins/crazy.gif

Needless to say, I'm a bit frustrated.... Doesnt appear to be all that difficlut, just time consuming.. Unfortunatly, due to my schedule I needed to cut a corner... So a little silicone later, I think thats ok... Now I need to het the gaskets and seals to put the rest of it back together so I can use it when I get back in town.... /forums/images/graemlins/crazy.gif

Oh, well... Just thought I'd post the pics so the guys that didnt know what was in there could see, and maybe the guys that know something about it can correct me and give me an easy fix /forums/images/graemlins/grin.gif..

BruceR · Mar 20, 2006

Greg,

Thanks for the photos and info. Keep us posted.

Bruce

1danny · Mar 20, 2006

Are you sure the O-ring is leaking? I have replaced the seal & collar on a lot of YM2000' S, but never had to change the O-ring.

Danny

HGM · Apr 13, 2006

Danny,
Are you talking about the axle(stub shaft) seal in the brake drum area? If so, it was dry.. Mine is definitly leaking from the o-ring... I think the silicone is my ticket here /forums/images/graemlins/grin.gif.. Its a bigger job than I care to do with spring here, so it will have to..

Have you seen the o-ring leak before?
Thanks for the input..