1512 main oil seal

[bpientka]

1512 has been leaking oil onto the front axle for close to a year now. Last night jumped into the repairs. Main seal is leaking and I have a new one on order so it will be a few days before reassembly can occur. I thought people might be interested in some photos.

Sheet metal removed

 

[bpientka]

Radiator removed. See oil/dirt on front axle.

 

[bpientka]

PTO Clutch and clutch shaft removed. I did have to unbolt the engine to get the clutch off the shaft. Again see dirt and oil on front axle.

 

[bpientka]

Flywheel removed. Anyone see where the leak is?
Look at the clean area in the middle. I have ordered the three seals needed to repair this. Will take more photos with the main bearing case cover off.

 

[jchamberlin]

Bernie: Pretty cool. Is that the flywheel I see at the "front" of the engine?

 

[bpientka]

The picture where I say clutch and clutch shaft remove has the flywheel (see the teeth). The last picture is of the main bearing carrier (with lots of small bolts).

 

[nbextermueller]

Jeremiah,

These diesels turn the opposite direction of our traditional gas engines. So they are mount "backwards" from conventional wisdom. Always funny to see them though. Like blown drag boat motors with the blower hat turned backwards, although its facing the front on the boat...

 

[bpientka]

Are they truly spinning backwards? On the gas engines cubs cadets are not connect to the drive shaft but the flywheel. So in some sense they are also mounted backwards. I guess it just depends on where the flywheel is located. Ok maybe I am overthinking things.

 

[dtanner]

Bernie Pientka

Post more pictures of when you get to the front seal please. Someday I might have to do that to my 1512 and it would be great to have your pictures to work from .Thanks Don T

 

[bpientka]

No problem Don. It was my plan to document everything and post them.

 

[bpientka]

Waiting on one seal. All but the main one arrived in my order. Hope to get it this week.

 

[dtanner]

Bernie Pientka

Did you get your seals from a local kubota dealer?
I bet they would have them in stock. CCC would have to get them from another source I bet.Keep me posted because I might have to do this someday. later Don T

 

[bpientka]

I called four local Kubota dealers and none had it in stock. All could get it (3-4 days) but I had to order some other cub cadet parts so I just went that route to save shipping. The two other Kubota seals came in the order.

 

[bpientka]

No seal yet but kept going on the removal. Following the service manual after removing the 16 small bolts (shorter bolt go into inside holes) I place two of them in the threaded holes of the alum plate (Marked with yellow arrows). With very little turning force this popped the alum plate right off.

 

[bpientka]

The alum plate containes the main seal (one I am waiting for) and there are two additional seals on the engine.

 

[bpientka]

Here is a better photo of the inner seals. After this photo was taken I started to remove these seals but the outer one is being tough. The blue metal plate still on the motor makes it difficult to get to the seal out. Looked over things I think best solution is just to removed the blue metal plate. This will allow the best access to remove the old seal. Once the kids go to bed will start removal of the metal plate. More pictures to follow.

 

[dtanner]

Bernie Pientka

 

[bpientka]

All right another 30 minutes into it and the blue plate is removed.

With the plate removed I now can get in to clean the old seal off and prep the area for the new seal. Looks like I have some more cleaning to do and maybe a little Kubota blue paint.

Lastly a little gentle tapping with a hammer and a small strip of wood and the old seal is out.

 

[bpientka]

Just checked and seal shipped. Scheduled for delivery today. Should get tractor back together over weekend!!!

 

[bpientka]

After 3 hrs of work the tractor started right up. Most of this time was spent cleaning and prep for the seals. The main oil seal was a little tight getting it into the alum plate but I just took my time with a dead blow hammer and a metal plate to ease it into place. It is interesting that the new inner seal (between alum plate and engine block) appeared to be metal with a light coating on each side. Where the original on was regular gasket material. After a minute or so of running there appeared to be no oil leaks. Will change the oil before running again and top off the coolant. Still have to put the sheet metal back on but will wait until I can run it some more.

Have a few more pictures which I will post soon.