Supplies:
New water pump (the one from Autozone comes with a gasket)
Gasket sealer RTV
Orange Anti freeze
Distilled water
Penetrating Oil (if needed)
Accessory Belt (if needed)
Tools:
Bucket
Slip Joint pliers
3/8" rachet
Philips screw driver
13MM socket
10MM socket
Razor blade
Start by draining some coolant out of the radiator and engine block.
Ignore the service manual's suggestion to use the drain cock at the bottom of the radiator. It's difficult to reach, near impossible to turn and likely plugged anyway. Here's a picture of the thing you shouldn't use.
Easiest way to to the draining is from the lower radiator hose. Move the intake, filter and air box out of the way. The intake unclips from the airbox with four metal clips, the airbox pulls off the fender with a firm pull upwards. Then use channel lock pliers to move the hose clamp off the lower radiator hose. Put a bucket under the jeep, then pull the hose. Catch as much coolant in the bucket as you can. The picture below shows the lower radiator hose pulled and a portion of the coolant collected into a bucket.
Next, take a good look at the accessory belt. You'll need to remember how it goes on later. Take a picture, or print mine.
Put a 3/8" ratchet into the square hole on the belt tensioner and push down with your left hand. Use your right hand to move the belt off one of the pulleys once you get enough slack in it. When the belt is off look at it and decide if you should replace (mine was fine)
Put a screwdriver into one of the empty holes on the water pump pulley to hold it still. Use a 13MM socket to remove the three bolts that hold the pulley to the water pump.
Remove the pulley from the water pump, I needed some penetrating oil and a large screw driver to break the rust that had the two stuck together.
Here's the pulley sitting on my driveway.
Get your bucket in place under the water pump and remove the 7 bolts that hold the pump on using a 10MM socket.
Drop your ratchet into the bucket of coolant.
Cuss.
Pull the water pump forward off the engine. Let the coolant run into the bucket below. Then use a razor to scrape off the old gasket from the engine.
Prep the new pump and gasket. Get a nice bead of gasket sealant all the way around both sides of the gasket.
Put the new water pump in place and replace all seven 10mm bolts. Tighten carefully and evenly.
Reattach the lower radiator hose.
Use channel locks to slide the hose clamp back in place.
Put the belt back on wrong, as shown below. Cuss. Then fix it so it looks like the picture at the beginning.
Pour antifreeze and distilled water into the radiator through the cap until bubbles stop. Alternate pouring small amounts of the water and coolant so that you end up with a 50/50 mix in the system. One the bubbles stop, start the jeep and keep pouring more in as more bubbles come out.
New water pump (the one from Autozone comes with a gasket)
Gasket sealer RTV
Orange Anti freeze
Distilled water
Penetrating Oil (if needed)
Accessory Belt (if needed)
Tools:
Bucket
Slip Joint pliers
3/8" rachet
Philips screw driver
13MM socket
10MM socket
Razor blade
Start by draining some coolant out of the radiator and engine block.
Ignore the service manual's suggestion to use the drain cock at the bottom of the radiator. It's difficult to reach, near impossible to turn and likely plugged anyway. Here's a picture of the thing you shouldn't use.
Easiest way to to the draining is from the lower radiator hose. Move the intake, filter and air box out of the way. The intake unclips from the airbox with four metal clips, the airbox pulls off the fender with a firm pull upwards. Then use channel lock pliers to move the hose clamp off the lower radiator hose. Put a bucket under the jeep, then pull the hose. Catch as much coolant in the bucket as you can. The picture below shows the lower radiator hose pulled and a portion of the coolant collected into a bucket.
Next, take a good look at the accessory belt. You'll need to remember how it goes on later. Take a picture, or print mine.
Put a 3/8" ratchet into the square hole on the belt tensioner and push down with your left hand. Use your right hand to move the belt off one of the pulleys once you get enough slack in it. When the belt is off look at it and decide if you should replace (mine was fine)
Put a screwdriver into one of the empty holes on the water pump pulley to hold it still. Use a 13MM socket to remove the three bolts that hold the pulley to the water pump.
Remove the pulley from the water pump, I needed some penetrating oil and a large screw driver to break the rust that had the two stuck together.
Here's the pulley sitting on my driveway.
Get your bucket in place under the water pump and remove the 7 bolts that hold the pump on using a 10MM socket.
Drop your ratchet into the bucket of coolant.
Cuss.
Pull the water pump forward off the engine. Let the coolant run into the bucket below. Then use a razor to scrape off the old gasket from the engine.
Prep the new pump and gasket. Get a nice bead of gasket sealant all the way around both sides of the gasket.
Put the new water pump in place and replace all seven 10mm bolts. Tighten carefully and evenly.
Reattach the lower radiator hose.
Use channel locks to slide the hose clamp back in place.
Put the belt back on wrong, as shown below. Cuss. Then fix it so it looks like the picture at the beginning.
Pour antifreeze and distilled water into the radiator through the cap until bubbles stop. Alternate pouring small amounts of the water and coolant so that you end up with a 50/50 mix in the system. One the bubbles stop, start the jeep and keep pouring more in as more bubbles come out.