oil leak

488 Views 5 Replies 3 Participants Last post by Guest, Jun 9, 2002

66erik

Discussion Starter · Jun 8, 2002

I have a '66 with a '69 351W. i seem to have an oil leak coming from under the oil filler cap because there is always oil all over the spark plug wires. Why am i having this problem and what do i do to fix it?

TIA

Save

1 - 1 of 6 Posts

sharkmouth

· #2 · Jun 8, 2002

You didnt say what kind of cap you have (whether or not its ventilated).....as engine get worn out, they vent gasses with oil vapor in them...if u have a ventilated cap, this vapor collects on the valve cover.

It's reduced when an engine has a correctly operating pcv system.