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Please play nicely.  No one wants to listen/read a keyboard warriors rants....

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Author Topic: cream colour on oil filler cap  (Read 2604 times)

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amigov6

  • Guest
Re: cream colour on oil filler cap
« Reply #15 on: 24 July 2007, 19:10:25 »

If you've no other problems do'nt worry. I did the same thing, it's just short journeys, but i bricked it for a while. You can pull the black plastic oil filler off (cheersMDTM) clean it and go on a run, should still be clear. :y
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Abiton

  • Guest
Re: cream colour on oil filler cap
« Reply #16 on: 24 July 2007, 20:43:50 »

I feel the need to confess that I've only just worked out why this mayo forms, more specifically where the water comes from.

Of course, it's a combustion by-product!  Blow-by (of steam) past the piston rings takes this gaseous water into the crankcase, where, if the temperature is low, it will condense and to some degree mix with the oil.

Once the engine's fully up to temp it won't condense, but just scoot out the top through the breather system, giving you a smidge of water injection  ;D (well, probably steam actually). That which has condensed/mixed will be distilled off again.

Feel free to laugh at me for only just getting this.  I only commute 4 miles each way to work, so see a bit of this mayo, especially in winter-time.
« Last Edit: 24 July 2007, 20:44:49 by Abiton »
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