The Caddyinfo Cadillac Discussion Forum has been updated to new software, and appears to be hitting on all cylinders now.
Welcome
Cadillac Forum for Discussion, Information, How-To, Fun.
Support Caddyinfo.com There
are two easy ways to contribute to Caddyinfo.com
1) Caddyinfo
Discussion Forum
Contribution or Subcription click here
2) Direct contribution via Paypal, click the button below.
Join the forum
Join the Caddyinfo.com forum and share your knowledge of Cadillacs and
Cadillac Culture.
Write Cadillac Articles Email or post your articles to share with other Cadillac enthusiasts!
Replacing the water pump on a Northstar engine / in this case 1996 SLS
by Stefan KnoppeFirst of all remove the upper air cleaner casing by releasing the hose clamp at the air intake and pressing the tow plastic tabs at the casing.
Don't forget to unplug the intake temp sensor. Remove the air filter element and lift up and remove the lower air cleaner case half.
Remove coolant reservoir cap.
Drain coolant either by using the drain tap at the radiator or by removing the lower coolant hose.
Remove the water pump belt cover (two nuts and one bolt). Insert a 1/4 size handle of your ratchet into the belt tensioner and release tensioner,
remove the water pump belt.
Remove the lower coolant hose from the water pump housing.
Remove the clamp from the smaller water hose at the rear of the water pump housing.
Remove four water pump housing bolts, remove housing cover, simultanousley work off small water hose at rear.
Place water pump removal tool on pump and turn clockwise about 30 degrees to remove.
Pump may be tight, it may be advisable to use an extension or an air tool.
Clean housing and all mating gasket surfaces.
Install new water pump in housing and turn counter clockwise with water pump tool.
Tighten to 100Nm (73 Lb Ft) torque.
Install housing cover with new silicone gasket. Tighten bolts to 10Nm (89 Lb In) torque.
Install and tighten water hoses.
Inspect water pump belt, renew if worn
Inspect belt tensioner for free movement, may be advisable to use a little oil at the hinge ponts.
Inspect water pump belt idler pulley for smooth operation, renew if necessary.
Install water pump belt and water pump belt cover.
Close drain tap / install lower radiator hose.
Fill coolant system with 50/50 mix destilled water and approved coolant. Check for leaks.
Install air cleaner lower case half, ail filter and upper case and install air duct on intake, tighten clamp. Connect air intake sensor.
Warm up engine, check temperature frequently, top off coolant as necessary, fit coolant reservoir cap.
Put cellphone in your pocket and two quarts 50/50 coolant mix in the trunk and drive car, check coolant temparature frequently.
Let engine cool down and recheck coolant, top off as necessary.
Total time if everything goes well: about one hour.
CaddyInfo
Discussion Forum
Where Cadillac Fans meet to Discuss Cadillacs
Xtreme Motorsports
Custom Cadillacs for performance and style
Cadillac
Northstar Oil Usage
How to Check, What to do
Cadillac
Acceleration Testing
0-60 mph, Quartermile, etc
Cadillac Performance
Modifications
How do I add HP?
Ebay Auctions for Cadillac Wheels/Tires
Cardio-Doc knows Wheels
Archive
of Cadillac Photos
Cars of People on the Board
How to Link to
Caddyinfo
Images and URLs
Cadillac
Books
Cadillac Book Reviews and Book Search
ledfix.com
Brakelight Repair
1996
STS Exhaust Test
Before/after Borla Exhaust runs