14/10/2026
Little bit of an interesting one to catch for us,
We had a 3.8L mivec in for a oil leak, now this engine had very recently had both cylinder heads off, reconditioned, full gasket set.
What we found and suspect is, the heads may have been acid washed or chemical clean without removing the front mivec oil passage cover and cause the o-ring seal to become brittle and crack, this has allowed oil to push past at pull mivec oil pressure and leak out the locating tab.