Broken Water Pump

[SSleepingbeauty]

So I have been having a no heat, engine overheating issue with my car since we had a week long freeze. I don't drive my car in the winter unless it's a nice dry day. So I decided to start up the car and let it run for awhile when I noticed my temp gauge starting to peg and ice cold air blowing out of the heat.

So I do the obvious, check thermostat, flush heater core, flush and change entire cooling system and bleed out air. Same problem

So now I am thinking it has to be my water pump. Which is a pain in the butt to remove since I have to remove my supercharger just to get to one of the bolts. Anyways after getting it off and taking it apart. The input shaft sheared right in half from the propeller inside the pump housing This pump has less than 3k miles on it. Has anyone ever have this happen before? I have had a couple of 6500 revs on this motor. (Built SC Stroker)

Anyways I think I am going with a electric pump. I was just wondering if this has happened to any one else?

[95wagon]

So, not enough antifreeze Sid??

[SSleepingbeauty]

It was mostly antifreeze. That's what surprised me? The impeller was in good shape the shaft was actually broken in half. Of course there was some wear from running the engine trying to figure out the problem.

Now that I think about it; metal shavings in the water jackets shouldn't harm the engine itself, if I flush the block out should it?

[B-Body Builder]

Originally Posted by SSleepingbeauty

Now that I think about it; metal shavings in the water jackets shouldn't harm the engine itself, if I flush the block out should it?

If you suspect that there are any shavings at all in the cooling system......I would thoroughly flush the entire cooling system out, starting by pulling the knock sensors out of the block and flushing the block itself 1st, then the rest of the cooling system and NEW Coolant to top it all off.......My .02

[96 Black]

Don't feel bad. I just replaced a 3 year old AZ rebuilt WP in the Cady with just a couple thousand miles on it. I was getting a faint temp light after commutes and found a weeping seal hole so likely just low sys pressure.

You never know when you're gonna lose a seal, especially in a rebuilt. But I never heard of snapping a driveshaft.

[RE LAC SN]

Just for the simple fact u have to remove sc to change wp I would def go electric...6 bolts a plug and some rtv and your back in business...easier than changin a tire..and u free up a couple ponies.