Drake Smith
Registered User
So I've wanted a 6.9 of 7.3 idi for quite sometime now. I've come across a 1992 F350 Crewcab SRW with the 7.3 IDI and an aftermarket turbo setup. Truck has a 5 speed and 236k miles. Little bit of blowby but not a ton, and green long life coolant. I'm buying it from the second owner who bought it from the original owner. Guy says its leaking tons of oil out the back and uses about 2 quarts a month due to the leak. Says it's the rear main. I had someone else tell me that alot of people mistake rear main seal leaks on 7.3 idi trucks for fuel leaks. Apparently its common for the fuel pump to leak at the back of the engine and then run down the back making it look like oil causing the engine to work harder and burning oil. Everything else checks out okay. How much should I pay for this thing? Not too worried about cavitation as I know that's a common issue on these. I'm more worried about the leak and what it could possibly be. He said the truck runs fine otherwise and doesnt blow any white or colored smoke or anything. So if it's the fuel pump leak, or the rear main, are those fixable? Like are they worth fixing if I can get the truck for 1700? I know the engine will need rebuilt at some point and that's fine, but if the truck will at least get me by for now I'm okay with that. Any info and help would be greatly appreciated thank you! I've attached two pics of the truck. Also has a newer clutch.