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Old 09-04-2015, 04:10 PM   #1
On the slippery slope
JayG's Avatar
Join Date: Mar 2014
Location: San Diego, Palm Springs and soon Austin
Posts: 3,645
Water pump and thermostat changed and system flushed

Got new bolts for the water pump after torquing off the head on one of the old ones.

Ended up going with cap head bolts and washers. Makes it really easy to bolt it all back up and torque. Those of you that have changed the WP, know about the 1 PITA bolt and with hex drive cap heads, its really easy, just us a short wobble extension hex drive socket

So after I got it all buttoned up, decided to flush the system and then refill with coolant.

Using a borrowed airlift, filled a bucket with 5 gal distilled water. refilled the system, but it only too about 3.5 gallons and I had drained around 5. Ran the car for a bit until the thermostat opened and had the heater on. the water level in the coolant tank did not drop at all

Once it cools down, I will drain the water and see how much I get out and then refill with coolant mix

2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region, 2014 Porsche Performance Driving School
2013 C300, 2010 Jetta 2011 Mazda 3, 1998 Windstar - Dog van , 2004 F-150 "Big Red"

Last edited by JayG; 09-04-2015 at 04:24 PM.
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Old 09-04-2015, 06:11 PM   #2
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Join Date: May 2013
Location: North Alabama
Posts: 2,079
So you used button head hex drive bolts to reinstall ??

I love the way they look BTW

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