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Ask Donald Your Own Question
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2050
Experience:  I have 25+ years of experience repairing 2 & 4 cycle engines
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I have a Kohler engine and it is leaking behind the oil

Customer Question

I have a Kohler engine and it is leaking behind the oil cooler. i replaced the o ring for the oil cooler and it still is leaking. Any ideas ?
JA: Can you guesstimate how old the engine is? And has it done anything like this in the past?
Customer: No it has not done this in the past. It is on a 3 year old exmark.
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: I put synthetic oil in it just now and it is dripping oil behind the oil filter/ oil cooler
Submitted: 10 months ago.
Category: Small Engine
Expert:  Donald replied 10 months ago.

Hello. Thank you for choosing Just Answer. My name is***** will be happy to assist you.

Expert:  Donald replied 10 months ago.

Do you have the model and spec numbers for your engine?

Expert:  Donald replied 10 months ago.

Use some de-greaser to clean the area near your oil cooler really good. Allow the de-greaser to soak, then rinse, and allow area to dry. Make sure your oil level is correct. Start your engine, and allow it to run long enough to reach full operating temperature. Next, shut your engine off, inspect for your oil leak.

Expert:  Donald replied 10 months ago.

Check for hairline cracks in the area, and also for a leak between your crankcase, and oil sump. We can continue from here!