oil drip question

[bgpilot1]

Any thoughts as to the cause of the attached oil drip?  Seems to be coming out of the screw.  Compressions are all above 76, temps and oil pressure are fine.  M20F

Thanks,

Barry

[MooneyMitch]

Whoops, nothing attached Barry.

[bgpilot1]

Lets try this again.  #2 intake.

[jetdriven]

thats a pretty minor leak, maybe it is either coming from the valve cover gasket, or the drainback pipe fitting.

[kerry]

Quote: bgpilot1

Any thoughts as to the cause of the attached oil drip?  Seems to be coming out of the screw.  Compressions are all above 76, temps and oil pressure are fine.  M20F

Thanks,

Barry

[MooneyMitch]

I might suggest replacing the intake gasket and then torque the flange bolts correctly.  Also, do check the integrity of the oil return line/fittings.  Looks like an issue I've experienced.  I'll bet that will take care of this.

[kerry]

I'm not sure but if oil is coming out of the intake tube wouldn't there be blow by(bad oil ring)  and it seems the bottom plug would be wet.  Just a guess.

[triple8s]

Its gotta be a rocker box or drain back leaking. The type of fitting on the drainback tube can cause a crack to develop in the tube at the fitting, especially when over tightened. Before I messed with the tube though I would clean everything well with non flamm brake cleaner let everthing dry then wrap the drain back and fitting with a piece of a paper towel then wrap that with aluminum foil, tie it with small cable ties where it wont get away then run the engine with the cowl off for a few minutes. If the tube is leaking you will see it on the white paper. Aluminum tubing is easily cracked at those types of fittings if over tightened.

[triple8s]

Oh dont fly the plane with tube wrapped, or cowl off. lol just sayin