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after coming thru the output drive where does the water run to get to the water pump (chev 350) I ran my engine with water pump off (briefly) to get a visual on the water flow to the pump. I had good flow out the large hose that goes to the pump. I also disconnecteted two of the water lines...

I am replacing the water pump for pm. I also have a temp sending unit i am putting in. It is a bit hard to start. and runs good. idle does fluctuate a little. ( a carb job is my next project after i figure out the temp problem) I have noticed a big difference in fuel consumption. This...

ok opened block drains just water came out. i pulled the water pump. It is corroded the impellar shows wear but its not disfunctional. I will replace it either way. does anyone have any other ideas

I am going to check the block drains for sand or blockage. It has been suggested to pop out the freeze plugs to look for sand. is this a good idea? is there a good way of evaluating water flow thru the system? The impellar was changed late last year and I remember that i had this poblem...

yes it is stern drive with impellar. I replaced the impellar late last year. is there a way to check the quality of water flow prior to replacing impellar again

thank you. I will do this tomorrow.

i had disconnected a water line to check water flow. it appeared to have good flow. I also had a small leak at exhaust bellows gasket. so there isflow thru engine to exhaust.

they were replaced a year ago

I have a 1980 sundancer chev 350. It will slowly creap up the guage at cruise but only run on warm side not in the red. Then at faster speeds it will go into the red slowly. if i slow down it will cool down and just run on the warm side. I have a new thermostat. water flow appears to be...