replace water pump at same time of radiator?
im replacing the radiator in my k20. I was wondering while i have things pulled apart if i should replace the water pump with a new pump maybe a high flow pump? i would do it as cheap insurance to make sure everything is running correctly.
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Re: replace water pump at same time of radiator?
I would say a good flush, a pump and thermostat, and check the hoses and replace if they're at all questionable.
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Re: replace water pump at same time of radiator?
I would change it. The time and labor you save, if it goes bad soon, will more than pay for the pump.
Purchase new, not rebuilt. Get an extra gasket in case you damage one. |
Re: replace water pump at same time of radiator?
is a high-volume pump worth the extra few bucks? good call on the hoses. ill add those to my list also
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Re: replace water pump at same time of radiator?
new radiator, absolutely flush motor and heater core. You don't want crud in new radiator. New cap also.
If WP is of unknown age or miles, replace it. If you know the history of it than it should be fine if there is no play in the shaft. HD water pumps typically were on AC vehicles. Nothing wrong with running one. All hoses, including heater. T stat also. Good time to add belts if they are old. |
Re: replace water pump at same time of radiator?
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Re: replace water pump at same time of radiator?
Make sure to fit the pump, and ensure it clears the timing cover before deciding to paint it, ask me how I know:metal:
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Re: replace water pump at same time of radiator?
And maybe the fan clutch too, if there is one.
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Re: replace water pump at same time of radiator?
I see no need for a high flow or volume water pump on anything stock or mild.
But you can go into a rabbit hole of while the pump is off the timing chain is right there but to do that right the oil pan has to come off and while it's off may as well do an oil pump and screen and and..... |
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I would not automatically change a water pump with a radiator change. If the pump is not leaking, the bearing feels OK, and it has been wet I would leave it. On my '83 K20 I changed the pump once and it promptly broke the shaft and threw the fan at my pretty new radiator. Luckily it was at idle and the belts retained it from doing much damage, it just chewed up the shroud a little and I replaced a belt. So I don't change them "just because" anymore. |
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