[ngoma]

I recently replaced my orig. cast impeller WP with a new GMB (smaller dia. BTW) stamped steel impeller WP during a timing belt change. Purposely did not change out the t-stat to run a little experiment. Currently the experiment shows little change in engine tendency to overheat. Engine runs same displayed temp as before, and has not risen during high load, also as before.

I kept the cast impeller WP with the idea to eventually rebuild it w/ new bearing and seal.