Good job. Burping the system is important. Another thing that most deny effects the cooling system's efficiency, is the new style, water pumps, with the cheep-o, stamped-steel impeller. Some will even state that "the new style is equal, if not more efficient... blah, blah, blah... better design... blah, blah, blah...". Well, the idiots over at GM found out that the cast iron style does* in fact move coolant better. Guess what, IH never changed the design. From GM's own findings, the stamped steel impeller causes "cavitation". From the experts (not the vehicle manufacturers' with no mechanical knowledge, who changed design from cast iron to stamped steel), "Testing the new design shows a decrease in engine temps, from over 230 degrees at idle down to 190 degrees without any other system upgrades." fookin brilliant! Whodathunk!? D'OH! Look at the 90s Buick 3.8L/3800. Notorious for overheating, almost as much as V8 Buicks from the 80s. In 1996, the "new design" was adopted and cooling issues plummeted. Same exact pump, bolt pattern, rotation etc., just back to the old cast iron impeller. They did keep the bleeder valve in the thermostat housing though, due to it being a closed loop system. Ya also have to fill the system with a "spill-free" funnel that attaches to the radiator and has a removable plug... which I think is a great addition to the tools in the garage.
@TEN-TIMES-HARDER4 жыл бұрын
Yes the stamped impellers are trash, I'm lucky enough to have a good cast impeller. if you will also notice their is a nice sized gab behind the stamped impeller, designed to be cheap... The cast spirals inward....