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Discussion Starter · #1 · (Edited)
Hi everyone,

So i just pulled this 85 F250 with a 6.9 IDI out of someone's yard and ran it home out of a diesel jug on the passenger seat. It looked like it had had a little water in the oil for a long time and it started smoking white, drinking coolant and overheating on the way back (light came on, gauge was not all the way pegged out). Had to fill in 2 gallons and the coolant was full of carbon by the end of the trip.

Pulled the heads off, thinking it was the typical head gasket. Gasket was caked in carbon and some of the headbolts had carbon on them too, so I am pretty sure the gasket was bad.

I'm putting it back together either way but what are your opinions?

Thank you!
 

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Yes, that's a crack. It may not leak coolant with no pressure behind it, but when running it definitely will. Don't bother putting it back together. The only way to possibly save that block is to get that cylinder sleeved, and that may not even work. Have a machine shop that can do sleeves take a look at it. They'll tell you whether it can be saved.
 
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