Flip top oil cap leaking

[LazyJ]

Like a sieve. It looks good, cam isn't broken, o-ring looks good, I took it off and flipped it over. It is leaking through the middle of the cap and not around the edge.

The saw is barely 2 years old with @ 50 tanks of use. I can't image the cap is already worn out. Anybody have an easy fix before I order a new cap $$$ which doesn't appear to be serviceable.

 

[TRI955]

Go buy a new cap, it fixed my oil leak.

 

[ironman_gq]

sounds like a vented cap. on ice augers they have a small rubber umbrella valve that lets air in but nothing out. my guess is that yours is either cracked or has something like a piece of dirt or sawdust stuck in it.

 

[bullseye13]

There no biggie, like 7-8 bucks. Most dealers should have em in stock.

 

[LazyJ]

$7.95 and in stock, new one obviously fits more snug.
Cheaper than I figured but still, caps

 

[Fish]

What model Stihl, ? Flip caps can be had cheaper..........

 

[TRI955]

What model Stihl, ? Flip caps can be had cheaper..........

My guess would be a 440, that's the one I had problems with....

 

[Fish]

Was that you that e-mailed me about the MS290 caps?