This LRO reader emailed LRO.firstname.lastname@example.org to ask Andrew Varrall about the severity of finding oil in his Land Rover Series III's breather.
I’ve just noticed that there’s oil in the mushroom-shaped crankcase emission system in my Series III’s 2.25-litre petrol engine. The engine appears in reasonable shape – no oil droplets from the side cover oil filler with the cap removed, or from the rocker cover with breather removed. Compression seems okay to me at 10, 11, 10 and 10 Bar respectively on the four cylinders. The diaphragm in the mushroom is undamaged too. Should I worry?
Brian Young, St Kitts, West Indies
It’s not unusual to see oil in this breather, so I wouldn’t worry about it unless it starts throwing out a lot of oil (to the point where it’s dripping). Your compressions are good, which indicates the engine is in generally good health.
This workshop advice appeared in the February 2016 issue of LRO. Back issues are available to download on digital devices here.