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Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1886
Experience:  I have 25+ years of experience repairing 2 & 4 cycle engines
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I purchased a Sears rider mower LTS1500 about 7 years ago,

Customer Question

I purchased a Sears rider mower LTS1500 about 7 years ago, the last couple of years it has been smoking and burning large amounts of oil, when the oil has burned down to about half full it stops smoking.
Submitted: 11 months ago.
Category: Small Engine
Expert:  Donald replied 11 months ago.
Hello, and thank you for choosing Just Answer. My name is***** will be happy to assist you.
Customer: replied 11 months ago.
did you see my question ?
Expert:  Donald replied 11 months ago.
Yes I did. Thanks! It is very likely that you have a blown head gasket.
Customer: replied 11 months ago.
How would that happen?
Customer: replied 11 months ago.
And wouldn't I see oil deposits on the engine.
Expert:  Donald replied 11 months ago.
There are a number of issues that can cause this problem, but blown head gaskets are among the most common. What brand is your engine? Sometimes this can be caused by loose head bolts, and heat over time.
Customer: replied 11 months ago.
Craftsman LTS1500 Briggs and Stratton 17.5
Expert:  Donald replied 11 months ago.
Blown head gaskets can cause excessive crankcase pressure. The excessive crankcase pressure can cause oil to enter your combustion chamber, creating the smoke you are seeing.
Expert:  Donald replied 11 months ago.
You could also have worn piston or rings, leaking seals, worn valve guides, bad breather assembly, etc., but I would focus on your head gasket.
Customer: replied 11 months ago.
Okay, thanks.
Expert:  Donald replied 11 months ago.
You are very welcome!