91 cbr600 f2 have oil entering coolent

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Apr 10, 2018 | 01:52 AM

Ray600

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Joined: Apr 2018

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91 cbr600 f2 have oil entering coolent

Been told is caused by the o ring on the water pump shaft? There is no water the the oil.

Apr 10, 2018 | 07:39 AM

74demon

Administrator and MVN, March 2012/Oct 2013 ROTM

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From: socal 949/951

Could be.
Oil cooler seals can do that too, if your bike is equipped with one.

Of course it could also be something a lot more serious.

Apr 25, 2018 | 08:46 AM

marc0011

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Joined: Sep 2006

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From: Washington, DC

A leak down test will confirm that it isn’t a head gasket. If it isn’t, check the before mentioned areas for o-ring failures.

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