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Author Topic: Cb400f oil leak trouble  (Read 1473 times)

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Offline Blackandsilver

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Cb400f oil leak trouble
« on: May 21, 2012, 03:58:04 PM »
Hey everyone, I have a problem with my 400f supersport. It appears to be leaking oil from the alternator case. I think it's the oil pass plug but it may also be the crank seal. I've replaced the o ring on the plug already and that doesn't seem to help. It leaks a litre of oil ever tank of gas. Anyone ever done the crank seal without splitting cases? Or has anyone else ever encountered a faulty oil pass plug? Anyone know it's purpose?


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Offline LesterPiglet

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Re: Cb400f oil leak trouble
« Reply #1 on: May 21, 2012, 04:07:40 PM »
I just had this same problem a few weeks ago. I thought it was the crank seal but turned out to be that plug. I gave it a good cleaning then sealed it off with Tigerseal.

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Offline Blackandsilver

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Cb400f oil leak trouble
« Reply #2 on: May 21, 2012, 05:46:10 PM »
Thanks! What's tigerseal? Do you know what that plug does?


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Offline LesterPiglet

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Re: Cb400f oil leak trouble
« Reply #3 on: May 21, 2012, 05:52:41 PM »
Click on the blue link for Tigerseal. A similar product is called Sikaflex.
My only guess about that plug is that it's maybe used for flushing the oil galleries after machining.
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'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


Les Ross.            Certified by a Professional

Offline Blackandsilver

  • dont forget the joker
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    • 76 cb750
Cb400f oil leak trouble
« Reply #4 on: May 21, 2012, 06:27:03 PM »
Agh cool. I can't click the link but google helped. that machining thing makes sense.


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