Oil leaking from oil filler cap

[wjarnoldjr]

I need help, I have a type I 1200 engine that is leaking oil from the oil cap during normal use. I have changed the seal in the cap and still have the problem. Oil is also blowing into the air-cleaner from the breather tube. I have changed the oil and checked the level to be accurate. The oil looks milkly color and is foamy. I use a 10-40 high-grade Castro oil. The last time I drove the car down the highway, alot of oil came out and when I pulled to a stop the Oil light came on at idle and went off when I sped the RPM's up a little. WHAT IS THE PROBLEM HERE?????
THANKS FOR ANY AND ALL HELP...
Will

[Sandeep]

Hi Will,

Welcome to the forums.

When I had my 1600 in my bug, I had the same problem. I tightened the oil cap and still had the same problem.

I took a good look at the oil cap and what I found was it tightened by hand to a certain point, and then I had to press down and turn and it tightened another 180 degrees (half a turn).

This solved my oil leak problem at the cap.

Hope this helps.

Sandeep

It sounds like you have blow-by. This is from worn out piston rings.

To check for sure, put your hand over the oil filler cap while you rev the engine. If significant air is being forced out, that is from the combustion of the cylinders coming past the pistons and into the case. There will be some pulsing of air but should not be a significant force.

This will shoot oil out the cap and breather no matter how nice your seal is.