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exmark kawasaki fb460v leaking oil

#1

S

slash5bmw

I changed the oil in my exmark and I noticed it's leaking oil. I put synthetic oil in the mower and was wondering if that's why it's leaking. It's not much oil but enough to be annoying and for dirt and grass to stick to the mower. I can't track down the exact leak but it might be coming from the gasket about 2inches up from the base of the engine. I'm not sure what the gasket is called. I was going to pull the engine in the Fall and replace it.

There's also a gasket behind a plate on the side(near the carb) that torn off a bit. It's hard to see the oil since it's so clear but you can see it pooling a bit under the cylinder fins.

Any ideas?

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#2

StarTech

StarTech

That would the valve chamber gasket PN 11060-2376. Unfortunately it is list as NLA. You can try using RTV or make your own gasket.


#3

B

bertsmobile1

The down side of synthetics is hey will leak through places where standard oils won't.
Unless it becomes chronic just watch the oil level .
It is a big problem for old motorcycles .


#4

Scrubcadet10

Scrubcadet10

Looks like parts tree may have it, they note a new P/N from 2376 to 11009-2338...

Might give them a call first, 512-288-4355
https://www.partstree.com/parts/kawasaki-11009-2338/


#5

S

slash5bmw

bertsmobile1 said:
The down side of synthetics is hey will leak through places where standard oils won't.
Unless it becomes chronic just watch the oil level .
It is a big problem for old motorcycles .
Click to expand...
Yeah, I've heard that before. I'm thinking the tolerances on this engine are a little better but maybe not. Any idea what that big gasket is that goes around engine mounting plate. Not sure how to look up that gasket.


#6

S

slash5bmw

Scrubcadet10 said:
Looks like parts tree may have it, they note a new P/N from 2376 to 11009-2338...

Might give them a call first, 512-288-4355
https://www.partstree.com/parts/kawasaki-11009-2338/
Click to expand...
Thanks, I saw some ebay also.


#7

Scrubcadet10

Scrubcadet10

1628790996384.png That's the sump gasket (you could call it an oil pan for simplicity) that's where the engine splits to access the internals.


#8

S

slash5bmw

Thanks. Looks like it's no longer available. Might have to go with rtv.


#9

M

MParr

Check around, you may be able to find some fiber gasket material at your local auto parts store. FelPro makes it. Making gaskets is a lost art.


#10

Scrubcadet10

Scrubcadet10

i've saved a few older 2strokes with this with NLA intake gaskets that were leaking air...


#11

S

slash5bmw

Thanks guys. I'm going to give that a shot. Maybe a little thin layer of rtv on both sides also. The size should work. 10 x 0.03 x 26 inches.

I'll have to break out the x-acto knife.


#12

M

MParr

slash5bmw said:
Thanks guys. I'm going to give that a shot. Maybe a little thin layer of rtv on both sides also. The size should work. 10 x 0.03 x 26 inches.

I'll have to break out the x-acto knife.
Click to expand...
I’ve used small ball peen hammers to tap out the outline. Notice that I used the word tap? All that you are trying to do is leave an outline on the gasket material. You DO NOT want to damage your part.


#13

Scrubcadet10

Scrubcadet10

Yep, and for bolt holes, i use a leather punch, you usually have to trim the edges of the holes with a box cutter but the punch gets ya pretty close.


#14

StarTech

StarTech

or you can use these from HFT for making the holes.
1628874057861.png


#15

Scrubcadet10

Scrubcadet10

where have those been all my life..... :oops: :LOL:


#16

B

bertsmobile1

Scrubcadet10 said:
where have those been all my life..... :oops: :LOL:
Click to expand...
They are called Wad Punches down here .
I usually start by tapping the holes with the 2 oz ball hammer then use the wad punches to knock out the holes
Then I slip the bolts through the holes to keep the gasket in position while finish ball peening the rest of the gasket.
For thin gaskets I use a set of cork bores as they are turn to cut with knife edges & I have a set left over from the lab days .
Fancy T handle set


#17

S

Shaunhr

slash5bmw said:
I changed the oil in my exmark and I noticed it's leaking oil. I put synthetic oil in the mower and was wondering if that's why it's leaking. It's not much oil but enough to be annoying and for dirt and grass to stick to the mower. I can't track down the exact leak but it might be coming from the gasket about 2inches up from the base of the engine. I'm not sure what the gasket is called. I was going to pull the engine in the Fall and replace it.

There's also a gasket behind a plate on the side(near the carb) that torn off a bit. It's hard to see the oil since it's so clear but you can see it pooling a bit under the cylinder fins.

Any ideas?
Click to expand...
I’d say it’s the sump gasket.


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