318iS burning oil

[David318is]

Car has just started blowing blue smoke from the exhaust.

I've just taken the plugs out to do a compression test and no.s 1,2 and 3 had oil in the plug tube.

compressions were 180psi on 1,3 and 4 ,and 250psi on no 2 .Is 250 very high or are the others quite low?.All Haynes manual says is minimum
10-11bar which is about 154psi

Hopefully this means the rings are OK

Do any of you know what pressures a healthy is produces ?

My next thought was worn oil seals on the valve guides causing the blue smoke ,but that dosent solve the oil in the sparkplug tubes

Any thoughts or experiences appreciated

[Andy335Touring]

Sorry, O/T

Is your car red as i might have seen it around L/E(Draycott Rd ?) ? Looks nice and tidy/well looked after if it is the one i'm thinking of.

I've not got any experiance with the M42 but from what i know 180psi sounds normal to me but i'm not sure why you got 250 on cyl 4 ? May be some oil went in to the combustion chamber from the spark plug holes and gave you a false reading ?

As to the oil in the spark holes is there a gasket in the rocker cover some where to keep the oil out ?

When are you getting smoke, full throttle, high revs over run or on start up ?

[David318is]

Yes its red with Mtech2 kit, probably the wife out shopping , I hardly ever get to drive it

It was no 2 with the highest pressure and that did have the most oil in

[David318is]

The smoke is on startup and blipping throttle overrun. Not sure about on full throttle as I'm usually looking forward with tunnel vision!