Water Pump Danger.
- Thread starter McRat
- Start date
I forget how many pumps he tried, but everyone failed, tried stick welding, tig welding, and mig welding when the gear was welded the impeller would slip or vise versa, when both sides where welded the shaft broke. Even had a machine shop cut a grove into the shaft and impeller/gear to fill it with a tig welder. The shaft broke on that one. Average life span with the S480 and N2O was about a week.
Only thing that worked was an electric water pump.
What about the old "cough" cummins "cough" trick and trim the impeller down, it wouldnt be good for a work/tow truck or nething but a comp/weekend warrior only would prob be ok?
As I previously posted I had trimmed down the impellor on a few of the pumps; on the last one I had taken off about 1/4 of the blades. I had no ill affects on daily driving or towing but still didn't keep it from breaking. If I have a truck breaking water pumps I would go straight to an electric pump and be done with it - it works just fine on daily drivers, keeps your coolant flow constant (instead of dependent on RPM), can be used to really cool the truck down quickly with the truck off, and completely eliminates the hassle of breaking and changing stock pumps.
I had trouble with a couple pumps, buy we haven't had any trouble out of mine in a while since we fixed it the last time. Gear is welded, impeller is turned down .100, keyed and bolted.