Water Pump, Do it myself or pay someone? - Toyota Yaris Forums

barryware · 12-16-2011, 08:57 AM

I replaced my pump twice in the last three weeks because the new pump (new, not a rebuild) was leaking around the shaft. There is one bolt that is difficult to get any "turn" on.
Removing the alternator makes it easier to access. Make sure you get a good gasket with the pump. My 1st pump came with basically a piece of paper for the gasket.

The 3 bolts that hold the pulley to the shaft are 10mm. You need a wrench (not a socket) to remove these bolts as well as having to lock the pulley. I used a large screwdriver through one of the holes in the pulley.

There are 3 bolts and two nuts that hold on the water pump. These are also 10mm. You will need a combination of wrench and socket to get these off.

The top bolt on the alternator is 12mm. The bottom bolt on the alternator is 14mm. A wrench works fine for both. To get to lower bolt out all the way so you can remove the alternator, you need to remove one 10mm bolt that holds an AC line in place. Remove the bolt, and wiggle the bracket up the ac line (toward the front of the car) a couple of inches so it is not in the way of removing the lower alternator bolt. It is a long bolt.

The last pump, was the third pump I have installed on the car.. 1st pump was at about 38k miles. The second was at 73k, and the third was the next weekend after the 2nd pump.

Start to finish, about 3 hours but there was a lot of coffee sipping.

Even though you drained the radiator, when you remove the pump, there will be a substantial amount of coolant that comes out. Put some cardboard on the floor with some kind of catch pan. I used a plastic 1lb coffee container. Besides what made it to the floor (cardboard), I caught 6 ~ 8 oz of fluid in the container.

Good luck.. It is not difficult. Well.. it is not like hauling rocks in a wheel barrel for three hours but it is kind of a pain.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Water Pump gave up on me finally	Vioz	DIY / Maintenance / Service	4	07-31-2011 06:08 PM
Water Pump leaks and then stops	CB900F2	DIY / Maintenance / Service	30	05-09-2011 09:14 AM
HELP: changing water pump	dlplunkett44	DIY / Maintenance / Service	4	02-06-2011 09:26 AM
Hmm my water pump failed again!!!! Could it be the pulley?!?!	YarisSedan	Performance Modifications	64	10-05-2009 09:32 PM
GROUP BUY - JDM (RS) Vitz LED Tail Lamp ...	riceboy	Items for Sale by private party	453	07-14-2007 08:30 AM

12-16-2011, 08:57 AM	#7
barryware Drives: 2007 Yaris Liftback Join Date: Sep 2006 Location: Chicago Posts: 129	I replaced my pump twice in the last three weeks because the new pump (new, not a rebuild) was leaking around the shaft. There is one bolt that is difficult to get any "turn" on. Removing the alternator makes it easier to access. Make sure you get a good gasket with the pump. My 1st pump came with basically a piece of paper for the gasket. The 3 bolts that hold the pulley to the shaft are 10mm. You need a wrench (not a socket) to remove these bolts as well as having to lock the pulley. I used a large screwdriver through one of the holes in the pulley. There are 3 bolts and two nuts that hold on the water pump. These are also 10mm. You will need a combination of wrench and socket to get these off. The top bolt on the alternator is 12mm. The bottom bolt on the alternator is 14mm. A wrench works fine for both. To get to lower bolt out all the way so you can remove the alternator, you need to remove one 10mm bolt that holds an AC line in place. Remove the bolt, and wiggle the bracket up the ac line (toward the front of the car) a couple of inches so it is not in the way of removing the lower alternator bolt. It is a long bolt. The last pump, was the third pump I have installed on the car.. 1st pump was at about 38k miles. The second was at 73k, and the third was the next weekend after the 2nd pump. Start to finish, about 3 hours but there was a lot of coffee sipping. Even though you drained the radiator, when you remove the pump, there will be a substantial amount of coolant that comes out. Put some cardboard on the floor with some kind of catch pan. I used a plastic 1lb coffee container. Besides what made it to the floor (cardboard), I caught 6 ~ 8 oz of fluid in the container. Good luck.. It is not difficult. Well.. it is not like hauling rocks in a wheel barrel for three hours but it is kind of a pain.