Yes it was determined by the machine shop, who found bad gas when I delivered the head only and confirmed by them after I reported the previous owner had let the vehicle sit untouched for two years in the AZ sun that the gas had spoiled. They said this clogged at the valves which forced the rods to bend as the owner continued to try to get it to fire. See photo of what I pulled out vs. used that just arrived.
Tearing into it the head gasket clearly leaked as I found coolant in the intake. The fuel tank is off and I have cleaned out milky bad gas and rust. I am no expert but the smell of that was not right. I have coated the tank with POR-15 sealer (which is amazing), flushed the fuel lines with lacquer thinner and air, replaced the fuel filter and pickup screen. I have the original injectors and another set from previous owner and all are very dirty visually. Does anyone know how to properly clean them or should I just buy new?
I have all new gaskets for fuel pump, head, intake throttle body, distributor, oil pan, valve cover and lifter cover, I have thoroughly cleaning up carbon and burnt oil on the entire rocket assembly, valve cover, lifer cover, interior of the intake. On all of that where applicable I plan to use
Permatex Assembly Lube and I believe I am to apply something like this
Anti-Seize or a thread lock (which one?) to all significant hardware / fasteners (head, intake, exhaust ets.). Anyone have any thoughts on this?
Obviously I haver never been into and engine. Any tips, cautions and opinions if I am going to far? Its a 91 FJ80 I want to get another 100K out of and I only interested in to this one and right the first time.
