NOS (big bag) and new stock (orange bag)
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diesel
The fuel injection system on the classic 6.9 and 7.3 liter International-Navistar engine used in diesel fords from the 70s to the early nineties is relatively simple, but some confusion still remains about how it functions. The major components of the system are the lift pump, filter head and filter, fuel injection pump, fuel injectors, return system, selector valve, and the fuel tanks.
Operation of the 6.9 and 7.3 International-Navistar IDI fuel system
Here are some pictures of a custom intake I built for My 1992 F250 diesel with ATS turbo kit. The intake was originally adapted from a MY1997+ Subaru Impreza intake to fit my former 1993 Impreza LS. I did that work with a hack saw and the addition of a mass air flow (MAF) sensor adapter; For this job I brought out the miter saw with grinding cut-off wheel, which goes through cheap aluminum like what this pipe's made of as if it were nothing, and which makes much better cuts.
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Custom F250 Turbo Diesel intake
My 1992 F250's radiator failed and (as per the link) I replaced the radiator and installed a custom coolant filter at the same time. I used parts ordered from International, and plumbing parts from a local agricultural pump and plumbing supply. All connections were sealed with blue RTV silicone sealant for its ideal compatibility with coolant and its high grip strength.