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Old February 20th, 2020, 09:05 PM   #1
woodchipliz
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engine teardown - need advice.

So i got this bike for 400$, Once i got it started i noticed it burned antifreeze. I am hoping its just a head gasket. I took the motor out and removed the head. Is there a way to tell if the head gasket looks like it has been leaking?


Also 2 of the head bolts have some green discoloring.









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Old February 20th, 2020, 09:48 PM   #2
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That middle bolt looks suspicious.
What reasoning made you think it was burning coolant? sweet smell and disappearing coolant?

Did you see any coolant building up anywhere when you were disassembling?
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Old February 21st, 2020, 08:59 AM   #3
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the exhaust was white and the coolant was very low
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Old February 21st, 2020, 09:49 AM   #4
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While steaming coolant out exhaust is typically sweet-smelling, burning coolant in combustion-chambers is extremely caustic and burns eyes.

Was there any coolant in either combustion-chamber sitting on top of pistons when you disassembled?

Did you do compression-test on engine before taking apart?
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Old February 21st, 2020, 12:45 PM   #5
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it was sweet smelling, no antifreeze found anywhere. I dont have the tools for a compression test

i ordered a gasket for 35$ CAD it should arrive next week.
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Old March 5th, 2020, 09:57 PM   #6
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So i replaced the cylinder base and head gaskets. That solved the issue.
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