Getting ready to fill the cooling system but have a question

[slithering]

patrickt,

No it's not a typo. I have a bleeder on the water pump itself. I believe all Evans water pumps come with an air bleeder.

Chris

[patrickt]

Originally Posted by slithering

patrickt,

No it's not a typo. I have a bleeder on the water pump itself. I believe all Evans water pumps come with an air bleeder.

Chris

That makes so much sense you'd think they'd all do that. Evans Coolant Pumps with Nifty Air Bleeds

[Ronbo]

I'm at a loss why you would block off the weep hole. The front bearing isn't intended to be submurged in coolant.

I'm also curious if the motor is run, wouldn't this small pocket of air get pushed out? It's a venturi pump so I can't imagine air not getting worked out from the turbulance. Seems unnessisary to me to add a bleeder. Not to mention this isn't the high point of the coolant system.

Velocity of the coolant in the system doesn't need to be fooled around with most of the time. The thermostat is the big bottleneck (as it should be) and overheats are usually radiator / airflow problems.

Or that underdrive pulley.

[patrickt]

Originally Posted by Ronbo

I'm at a loss why you would block off the weep hole. The front bearing isn't intended to be submurged in coolant.

Evans specifies in their instructions that the weep hole must be plugged to prevent air being drawn in to the pump and passed to the bearing shaft seal.
http://www.evanscooling.com/download...structions.pdf