Water pump, and why not to buy steel impellers

[txhokie4life]

 

Water pumps are a wink leak, in particular the bearing.

 

unfortunately folks see chipped plastic impellers and think the plastic impeller is the problem.

 

replaced with steel, bearings fail, and the steel impeller damages the block

 

 

[Skullbiker]

If the plastic has disintegrated should  several coolant system flushes get pieces out ? 

Thanks

[JFP in PA]

2 minutes ago, Skullbiker said:

If the plastic has disintegrated should  several coolant system flushes get pieces out ? 

Thanks

 

Usually, yes.  A metal impeller will do unfixable damage to the engine cases, resulting in overheating issues that cannot be fixed, as well as filling the entire cooling system with fine metal dust that is a pain to get out.