stewart tag
Thread Starter
Heel & Toe
Joined: May 2006
Posts: 21
Likes: 0
From: Pittsburgh Pennsylvania
stewart tag
I just got my new Stewart water pump installed. When I got it there was a tag on the front that said that you have to bleed the air out of the pump when it is installed. Can anyone give a little more info on how this is done, or if it needs to be done?
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
The tag is probably refering to "Purging" the cooling system of air.
All you have to do is fill with coolant, run the engine (with the radiator cap off) until the thermostat opens and you no longer see any air bubbles in the radiator. Top coolant off after the thermostat opens.
All you have to do is fill with coolant, run the engine (with the radiator cap off) until the thermostat opens and you no longer see any air bubbles in the radiator. Top coolant off after the thermostat opens.
Last edited by GKK; Aug 5, 2006 at 04:52 PM.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Not to rain on your parade, but did you tighten down the rear plate on the waterpump? After installing mine, I warmed the car up and it immediately started pissing coolant out of the rear plate they installed.
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
No tag on my Stewart pump, but C4's have the water pump below where the coolant goes to when initially filling the cooling system so the tag info isn't necessary. You do need to burp the system and this is done by idling the engine to the opening temp of the thermostat with the rad cap off or on it last click and racing the engine slightly which will cause what looks like a full sytem to suddenly drop out of sight. Then fill the system to the filler, replace the rad cap and THEN let the engine speed go back down to idle.
