Water Pump is being sent out for rebuilding with a 3 week turnaround. Radiator will be ready tomorrow.

The T Stat installed was a 160 degree rated one. I intend to replace it with a new 160 since the truck ran perfectly fine with it and reached the normal operating temp in a reasonable amount of time. Manual says 160 or 180 can be used.

1. Since there is no bypass hose on these trucks, should I modify the T Stat with a drilled hole in the flange? If so, what size?

I think JonG mentioned the FailSafe brand T stat. It has some sort of goofy looking mechanism to lock it open or something if it gets too hot or whatever. That's what was in there. I don't think he liked it much.

2. Should I get the FailSafe or just go with the normal kind?

3. I normally use Green ethylene glycol coolant mixed 50/50 with distilled water. Is there any advantage to buying the premixed stuff? Seems like you're just paying$12/gal for water instead of 99 cents for distilled but maybe it has other qualities I'm not aware of?

Someone else on this forum, I think that guy from Germany, said that distilled water shouldn't be used.

4. Do any of the water pump bolts enter the water jacket?

1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1956 Cadillac Sixty Special Fleetwood (The Godfather) | 1966 Oldsmobile Toronado (The Purple Knif) | 1966 Ford Mustang (Little Red) | 1964 Ford Galaxie 500 coupe | 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)