Should i change my water pump?

[Jayru]

I've going to do all the belts while i'm converting the alternator to a ZX unit. Since i'm so close should i do the water pump? The car has 82k original miles and the water pump shows no signs of it not working (No wobble, noise, keeps cool). Should i change it since i'm there or leave well enough alone?

It looks to be the original unit. Also, the PO supplied me with 3 brand new belts, but they must be 10+ years old. They look perfect (No cracks, ect) Do you think they're still good?

Thanks,

Jay

[dogma420]

If money / looking 100% stock are not issues, go ahead and replace the water pump, get brand new belts, and consider removing mechanical fan and putting in an electric puller fan while you're at it.

Or...you could probably leave your water pump and use the old belts...depends upon if you like 'peace of mind' like myself when it comes to replacing stuff if it should be. I'd think a 82,000 water pump should probably be replaced since you're in that area anyways.

Just my .02 dollars

[240ZX]

Jayru, If you are thinking about doing the water pump, you may want to consider flushing out the cooling system before you remove the pump so your entire cooling system can benifit, in addition to the new pump! Just a thought!

[Jayru]

Jayru, If you are thinking about doing the water pump, you may want to consider flushing out the cooling system before you remove the pump so your entire cooling system can benifit, in addition to the new pump! Just a thought!

With what, just water?

[240ZX]

At your local auto parts store they should have stuff called radiator flush. I'm sure there are numerous suppliers, but generally you drain the cooling system, refill it with water, run the engine until it reaches normal operating temp (with the radiator cap off), then you add the radiator flush, let it run for some amount of time, then drain the sytem. After you replace the water pump, refill you cooling system with a mix (ratio will depend on your location) of distilled water, anti-freeze, and possibly a wetting agent with anti-corrosion additives. To be more correct you should read the instructions, but this should give you an idea of what involved! If you go though this exercise, at least when your done you will know your cooling system is in good shape.