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Gaskets go on dry as much as possible. Coating gaskets causes gasket extrusion. RTV and Anaerobic gasket makers are the best and most current options for form in place. All of the other stuff is obsolete at this point. For the fuel pump, I used no gaskets, just anaerobic gasket maker. I don't...

Interlux InterZinc is an inorganic zinc primer in a rattle can. It's available to boating supply stores.

Because you're going through the effort of blasting you should consider using an inorganic zinc primer as a first coat for best rust protection. I'm starting to see them available in rattle cans, I'll try to post a product number tomorrow.

It would. You're basically doing the fuel pump's job with a hand pump. Fluid flows freely through a diaphragm pump (the lift pump) in the normal direction of flow. You can put a hand pump anywhere in the loop and it will do it's thing. With that said, I usually roll the engine on the starter...

The best place would be to put it in line between the fuel filter inlet and the lift pump. You can use the mighty vac as a pressure pump to circulate fuel up to the injection pump.

My 1986 truck has most of the original rubber. It's good stuff. Be careful buying aftermarket. You need to spec the hose properly, the stuff on the rack at the auto parts store is not the right stuff, especially for return lines as the fuel is hot. The trucks came from the factory with Viton...

This is actually fairly normal if you get air in the IP. When I had a bad throttle shaft seal on mine it, the IP would drain back into the tank. The engine would start and idle fine but die about 200 feet after trying to drive it. A minute of cranking later, it would fire up and all would be...

Any bubbles in the coolant? Of the 2 GM diesels I have opened, the fire ring on the head gasket cuts into the top deck and they start leaking.