Swisher 60" T60 pull behind mower / B&S PowerBilt engine / Brown Milky Oil

DickDay

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  • / Swisher 60" T60 pull behind mower / B&S PowerBilt engine / Brown Milky Oil
I searched the prior posts and found a post that discusses seeing milky oil but I believe they were discussing relatively new mowers.
My Swisher T60 is about 10 years old and it's air cooled. I changed the oil and was shocked to see oil that looked like it had water or coolant in it.
It's always stored in my garage, It's never been stored outside.
By the end of last season it was surging. I ordered a new carb thinking that would fix the problem.
Today i installed the new carb, new fuel pump, new air filter and a new fuel filter.
Started it up and it's still surging. Gas is fresh. At the end of each season I drain gas and let it run until it dies.
Checking the dipstick, it always looked normal.
Anyone see this before? Could it just be that the engine is shot?
All responses greatly appreciated.
 
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