Great buy...of course I did I offered to pay the business what they paid for it new because I didn't want them to suffer any depreciation anxiety at closing. LOL just kidding :)
From my reading and talking to 6.4L gurus the head gaskets don't fail as much as they did on the 6.0L's. Some of the weaknesses/issues with these are the valve train which wear out or fail, cracked pistons or some have front cover cavitation that allows the oil/coolant to mix like this one. The latter many say are concentrated to the 450/550's which have a deeper rear gear thus spinning the engine and ultimately the water pump much faster and having a pressure drop in the pump that causes bubbles to form which eat away at the metal. Ford updated the front cover design on these.
While I did a complete bullet proof on my 6.0L I am of the consensus if it ain't broke don't fix it on this truck. No bullet proofing unless it has failed. This one will be a project that will be sold not a DD or a hard working truck.
rhagfo wrote:
rowekmr wrote:
Hello
I bought a 08 F450 Stake Bed from a local company that claimed coolant in the oil and it was deemed too old to fix. It was one owner with 88K miles. I took it to mechanic/friend 180 miles away who replaced the front engine cover that had signs of cavitation and drained some oil out of the IC. He replaced the coolant with Ford Gold and performed an oil change.
...............
Coolant in the oil. :S
Most likely a failing head gasket, or oil cooler.
I hope you got a really great buy on it, as it sounds like it could use a Bullet Proofing.
Bullet Proof Diesel