View Full Version : Is there a DIY for Water Pump replacement?


BigMikeATL
10-19-2009, 03:18 PM
Yes, I used the search. No, I did not find a thread.

Thanks in advance!

Flashwing
10-19-2009, 05:14 PM
Yes, I used the search. No, I did not find a thread.

Thanks in advance!

Yes there is, it's in the factory shop manual.

Jon316G
10-19-2009, 06:56 PM
Yes there is, it's in the factory shop manual.

Yup. Its actually pretty easy to install.
Here is a guide from the shop manual:
147175
That is basically it.
Only thing the above guide doesn't mention is to remove the battery, the battery box, and drain the coolant.

L337fpc
10-20-2009, 11:13 AM
I just did it this weekend. It was actually not bad. Just make sure you have a big drip pan because it is messy.

Adjusting the tension on the Alternator/Water Pump pulley was obnoxiously easy!

Also, don't forget to turn your wheel from lock to lock, then pump your brakes x20. I forgot this and completely panicked when i say warning lights. But after I did ^, everything was good.

Remember it can take a few engine cycles for your coolant to go from your reservoir into the cooling system.

http://img.photobucket.com/albums/v237/l337fpc/rx8/DSCN2231.jpg
Antifreeze will pour out when you pull the pump off even if you drained your coolant. So expect your engine bay to smell until it burns away.

TeamRX8
10-23-2009, 01:40 AM
Obnoxiously easy?

You get annoyed unless things are exceptionally difficult? :dunno:

MazdaManiac
10-23-2009, 02:25 AM
Drain the coolant from the engine drain (near the starter harness ground) and it will be considerably less messy.

thawk97
03-27-2010, 07:09 PM
Is a gear puller required to get the water pump pulley off? Or, does it come off easily? I see from the shop manual pic it is attached to the pump by an off center bolt - is this all that is holding it to the pump?

Jon316G
03-27-2010, 07:13 PM
Is a gear puller required to get the water pump pulley off?
Only three bolts hold the pulley onto the water pump.
After those are out it simply comes off.
Trick is loosening the bolts without spinning the pulley.
I apply more tension to the drive belt (using the alternator) until the pulley doesn't spin while trying to loosen the bolts.

thawk97
03-27-2010, 07:17 PM
excellent, thanks much!

J03K1LLARX8
05-30-2010, 08:00 PM
Need help removing the entire housing to get to a broken bolt in the block.

nycgps
05-30-2010, 09:29 PM
Another Tension bolt broke ?

J03K1LLARX8
05-30-2010, 10:06 PM
I was removing my engine hoist bracket and when was putting the bolts back in it broke. So now I have to take off the whole front assembly to get to the bolt. :crying: