madcookie38
Derestricted Danger
Joined: 24 Aug 2010
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karthead
Trackday Trickster
Joined: 01 Apr 2012
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 Posted: 08:14 - 25 May 2012  Post subject: Re: petrol smell in my gear box oil |
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| madcookie38 wrote: | Can anyone confirm that if i can smell petrol in my gear box oil that the crank seals are gone ? |
I would say that if you could smell petrol in the gearbox oil, it would rather be an engine cover gasket. If i'm right, when the engine is running it should be smoking more than usual.
If it happened to be a crank seal, you would lack crank compression, therefore it would run pretty crappy and would struggle to keep going.
Someone on this forum told me to check if crank seals were gone, you could test it by putting a smoking splint next to the crank seal while it's running, and the smoke would be going inside the seals. You could also spray a highly explosive spray in the seal while it's running on idle and it would rev higher.
Giving these two methods a second thought, it kinda seems impossible, as the seals are covered by either the magneto, or stator, or another engine cover. This seems to be the case on my KE125 engine.
Anyway, good luck with whatever you're doing  |
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madcookie38
Derestricted Danger
Joined: 24 Aug 2010
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| Posted: 23:19 - 27 May 2012 Post subject: Re: petrol smell in my gear box oil |
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| andresoccer10 wrote: | | madcookie38 wrote: | Can anyone confirm that if i can smell petrol in my gear box oil that the crank seals are gone ? |
I would say that if you could smell petrol in the gearbox oil, it would rather be an engine cover gasket. If i'm right, when the engine is running it should be smoking more than usual.
If it happened to be a crank seal, you would lack crank compression, therefore it would run pretty crappy and would struggle to keep going.
Someone on this forum told me to check if crank seals were gone, you could test it by putting a smoking splint next to the crank seal while it's running, and the smoke would be going inside the seals. You could also spray a highly explosive spray in the seal while it's running on idle and it would rev higher.
Giving these two methods a second thought, it kinda seems impossible, as the seals are covered by either the magneto, or stator, or another engine cover. This seems to be the case on my KE125 engine.
Anyway, good luck with whatever you're doing |
Hi there well ive found the bike wouldnt tick over as it should an has trouble reving up so think it could be crank seals ? there are only £15 so think i mite just change them an check the rest of the engine over while iam at it, But thanks for your help, Looks like iam going to be buzy for the next week pulling the engine out GREAT LOL |
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karthead
Trackday Trickster
Joined: 01 Apr 2012
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