Bad/Weak water pump?????

Treblig said

OK, taking it one by one. First, 7 vane pump because I have a small pulley.
Second, possible blockage through radiator....that's possible but since the upper hose empties directly into the top radiator tank I should see lots of turbulence in the water whether the tubes are clogged or not, RIGHT?? Besides, when I looked at the tubes they looked clean and clear.
Third, you're saying flush the system and replace water pump?
Fourth, Shoot it!! Now that's a GREAT IDEA!!!

Treblig

Click to expand...

Thanks Johnny.

Treblig, what I was concerned about was not what was floating around the water, but what wasn't.
Rust and crap settles in the block passages and can cause hot spots, and since the water pump pretty much has to come off anyway might as well blow out the block and backflush the radiator.

If tubes are plugged you won't see flow because the plugged tubes stops the water from getting to the pump, and also stops water from going out because there is no place for it to go.
Basically the circulation system "stalls" if you will in the whole system.