25-02-16, 03:38 PM
Do you do a lot of short journeys?
If the engine isn't allowed to get to operating temperature on a regular basis you will get this. It's caused by condensation in the engine breather normally there is minimal condensation as it's just heated away by engine temperature with lots of short journeys it builds up and starts to mix with the oil residue in the air box. The same can happen in the oil level sight glass.
If you got a lot in the air box and/or it's also in the gearbox it's likely coolant is contaminating the oil system, number 1 likely candidate is the oil cooler.
If you've not got it anywhere other than the air box it's likely it's just a build up of condensation as outline above. If you don't do short journeys it's possible your thermostat is stuck open so over cooling again not allowing the engine to reach operating temperature.
If the engine isn't allowed to get to operating temperature on a regular basis you will get this. It's caused by condensation in the engine breather normally there is minimal condensation as it's just heated away by engine temperature with lots of short journeys it builds up and starts to mix with the oil residue in the air box. The same can happen in the oil level sight glass.
If you got a lot in the air box and/or it's also in the gearbox it's likely coolant is contaminating the oil system, number 1 likely candidate is the oil cooler.
If you've not got it anywhere other than the air box it's likely it's just a build up of condensation as outline above. If you don't do short journeys it's possible your thermostat is stuck open so over cooling again not allowing the engine to reach operating temperature.
Later