DIY: Stewart Water Pump + Expansion Tank + Coolant Change + 2 Tensioner Pullies - Page 2

DiceyOne · 01-01-2009, 05:30 PM

excellent DIY, paraklas. I plan on doing this in the spring as some preventative maintenance. I will no doubt be referring to this thread as a guide.

paraklas · 01-02-2009, 04:11 PM

And in case somebody is wondering what sound a faulty wp does, here it is (notice the hishhhhh hishhhhh hishhhhh):

itscoo2pyopants · 01-02-2009, 04:19 PM

^ how many miles before you started hearing that from your pump? i want to get the stewart pump but dont want to if i dont have to.

paraklas · 01-02-2009, 04:54 PM

Around 40K miles

itscoo2pyopants · 01-03-2009, 12:17 PM

wow i got 90k, probably should replace it.

danlauz · 01-03-2009, 03:02 PM

take note I must change the tires when the car return to the road as after 4 years, thet are all cracked on the edge. (did not run enough) goodyear gsd3.

jabast09 · 01-04-2009, 07:59 PM

Paraklas: Awesome DYI!
I have a quick question...while removing the expansion tank I broke the thermostat plastic...I just ordered the part, however, it seems that there is still a piece of the old thermostat plastic where the expansion tank connects from the bottom...can you let me know how to remove it?
thanks!!!

paraklas · 01-05-2009, 04:31 AM

Can you post a pic of what you are refering into? The thermostat is not connected to the bottom part of the exp.tank.

SaaDiesel · 01-05-2009, 05:37 AM

This is going to help me SO much come springtime, thanks for a great writeup.

DiceyOne · 01-05-2009, 07:58 AM

Quote:

Originally Posted by paraklas

Can you post a pic of what you are refering into? The thermostat is not connected to the bottom part of the exp.tank.

he probably has an auto. there is a small thermostat that leads to the trans.

jabast09 · 01-05-2009, 09:14 AM

The red rectangle on picture one (pretty faint) shows where the piece (in picture two) broke off. Picture 2 shows what seems to be a thermostat and a spring...your help is very appreciated...

jabast09 · 01-05-2009, 03:33 PM

Gents,

Attached a picture on how the thermostat used to go. I was able to place it back but it does not feel real secure (it will surely come off with regular driving). So, given that the part is broken (both the plastic on the thermostat and on the mounting plate - I believe that is the plastic part that holds the thermostat and also the expansion tank, # 1 on the following diagram:
http://www.realoem.com/bmw/showparts...41&hg=17&fg=05 - do I have to also replace the mounting plate?

That seems like a JOB....and will probably require for me to take the radiator completely out...any of you done this?

thanks for your help!

DMan328 · 01-06-2009, 03:47 PM

This is quite possibly the best write-up that I have ever seen.

LSUKNUT · 01-07-2009, 05:05 PM

Great write up Paraklas!

I start first thing tomorrow morning. Stewart water pump, new UUC under pulleys & belt, thermostat, belt tensioner and new hoses. Should be quite a day.

paraklas · 01-08-2009, 03:44 AM

Quote:

Originally Posted by jabast09

The red rectangle on picture one (pretty faint) shows where the piece (in picture two) broke off. Picture 2 shows what seems to be a thermostat and a spring...your help is very appreciated...

No idea as I don't have an auto and therefore these parts are not in my car.

Good luck!

tony325ci_51 · 01-08-2009, 11:29 AM

nice work

dreamdrivedrift · 01-08-2009, 01:08 PM

Quote:

3. Go below car and remove expansion tank drain plug (blue) and let the coolant drain in a bucket. Do not allow pets in the area, coolant is sweet and if your dog drinks it, he will die.

great DIY.

phamine · 01-09-2009, 08:16 PM

nice writeup

paraklas · 01-13-2009, 05:26 PM

Thermostat housing is leaking now. Anybody knows if it's repairable using gasket silicone (like the one used for valve cover gasket) or do I need to change the entire unit.

LSUKNUT · 01-13-2009, 05:46 PM

Quote:

Originally Posted by paraklas

Thermostat housing is leaking now. Anybody knows if it's repairable using gasket silicone (like the one used for valve cover gasket) or do I need to change the entire unit.

Why you asking us? You wrote this DIY so you're supposed to be the expert.

BTW - Great DIY Paraklas! I followed it almost point for point except the fact I have an automatic and besides installing the Stewart water pump, thermostat, expansion tank, belt tensioner, new hoses and belts I was also installing a new under pulley system. Couldn't have done it without your great write up. Thanks....

01-02-2009, 04:11 PM	#22
paraklas OEM ///Member Join Date: Jan 2006 Location: Cyprus Posts: 5,411 My Ride: ESS TS2 320ci View My Garage	And in case somebody is wondering what sound a faulty wp does, here it is (notice the hishhhhh hishhhhh hishhhhh): __________________

01-02-2009, 04:19 PM	#23
itscoo2pyopants Registered User Join Date: Nov 2006 Location: WA Posts: 734 My Ride: /// View My Garage	^ how many miles before you started hearing that from your pump? i want to get the stewart pump but dont want to if i dont have to. __________________

01-02-2009, 04:54 PM	#24
paraklas OEM ///Member Join Date: Jan 2006 Location: Cyprus Posts: 5,411 My Ride: ESS TS2 320ci View My Garage	Around 40K miles __________________

01-03-2009, 12:17 PM	#25
itscoo2pyopants Registered User Join Date: Nov 2006 Location: WA Posts: 734 My Ride: /// View My Garage	wow i got 90k, probably should replace it. __________________

01-03-2009, 03:02 PM	#26
danlauz Registered User Join Date: Apr 2004 Location: canada Posts: 4 My Ride: 330 cic + X5 View My Garage	thanks take note I must change the tires when the car return to the road as after 4 years, thet are all cracked on the edge. (did not run enough) goodyear gsd3.

01-01-2009, 05:30 PM	#21
DiceyOne Registered User Join Date: Jul 2004 Location: PA Posts: 498 My Ride: 1999 328i View My Garage	excellent DIY, paraklas. I plan on doing this in the spring as some preventative maintenance. I will no doubt be referring to this thread as a guide.

01-04-2009, 07:59 PM	#27
jabast09 Registered User Join Date: Aug 2004 Location: Los Gatos Posts: 15 My Ride: 330ci, 9114S View My Garage	Quick question - thermostat Paraklas: Awesome DYI! I have a quick question...while removing the expansion tank I broke the thermostat plastic...I just ordered the part, however, it seems that there is still a piece of the old thermostat plastic where the expansion tank connects from the bottom...can you let me know how to remove it? thanks!!!

01-05-2009, 04:31 AM	#28
paraklas OEM ///Member Join Date: Jan 2006 Location: Cyprus Posts: 5,411 My Ride: ESS TS2 320ci View My Garage	Can you post a pic of what you are refering into? The thermostat is not connected to the bottom part of the exp.tank. __________________

01-05-2009, 05:37 AM	#29
SaaDiesel Registered User Join Date: Feb 2005 Location: Cleveland Posts: 1,341 My Ride: 02 330i Tech 1 View My Garage	This is going to help me SO much come springtime, thanks for a great writeup. __________________ E46-7 years STRONG ZSP/ZPP/ZCW BFP Intake, Euro Cooling Ducts, OEM Clear Lenses, 8000K HIDS Matte Black-Grill, Headlight, Window, & Body Trim

01-05-2009, 09:14 AM	#31
jabast09 Registered User Join Date: Aug 2004 Location: Los Gatos Posts: 15 My Ride: 330ci, 9114S View My Garage	Here are the pics.... The red rectangle on picture one (pretty faint) shows where the piece (in picture two) broke off. Picture 2 shows what seems to be a thermostat and a spring...your help is very appreciated... Attached Thumbnails

01-05-2009, 03:33 PM	#32
jabast09 Registered User Join Date: Aug 2004 Location: Los Gatos Posts: 15 My Ride: 330ci, 9114S View My Garage	more information Gents, Attached a picture on how the thermostat used to go. I was able to place it back but it does not feel real secure (it will surely come off with regular driving). So, given that the part is broken (both the plastic on the thermostat and on the mounting plate - I believe that is the plastic part that holds the thermostat and also the expansion tank, # 1 on the following diagram: http://www.realoem.com/bmw/showparts...41&hg=17&fg=05 - do I have to also replace the mounting plate? That seems like a JOB....and will probably require for me to take the radiator completely out...any of you done this? thanks for your help! Attached Thumbnails

01-06-2009, 03:47 PM	#33
DMan328 Registered User Join Date: Jan 2006 Location: Central NJ Posts: 18 My Ride: 2001 330i ZSP View My Garage	This is quite possibly the best write-up that I have ever seen.

01-07-2009, 05:05 PM	#34
LSUKNUT Registered User Join Date: Oct 2008 Location: Baton Rouge, LA Posts: 167 My Ride: 330i View My Garage	Great write up Paraklas! I start first thing tomorrow morning. Stewart water pump, new UUC under pulleys & belt, thermostat, belt tensioner and new hoses. Should be quite a day. __________________ *KNUT's Progress & Thank You to E46Fanatics Supporting Vendors - http://forum.e46fanatics.com/showthr...=1#post9933726*

01-08-2009, 11:29 AM	#36
tony325ci_51 Registered User Join Date: Feb 2006 Location: London UK Posts: 1,225 My Ride: BMW 335i 2007 Coupe View My Garage	nice work __________________ My gallery is here: http://photos.e46fanatics.com/showga...=59936&cat=500

01-09-2009, 08:16 PM	#38
phamine Registered User Join Date: Apr 2008 Location: Brooklyn, NY Posts: 1,217 My Ride: 01 Orient Blue 330i View My Garage	nice writeup

01-13-2009, 05:26 PM	#39
paraklas OEM ///Member Join Date: Jan 2006 Location: Cyprus Posts: 5,411 My Ride: ESS TS2 320ci View My Garage	Thermostat housing is leaking now. Anybody knows if it's repairable using gasket silicone (like the one used for valve cover gasket) or do I need to change the entire unit. __________________

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