RoadtripRyan

Hi everyone,

I have recently changed the water pump and a few old tubes on my 997.1. I refilled coolant as possible and did two test rides so far with the coolant valve open. Water temp stays at 176°F, as is should. However oil temp is getting far too hot and too early. During normal inner-city drive around, the car reaches 190-210°F. With slightly more speed it reaches 230°F, though I stopped the drive and made sure it never went above.
During the second ride, it took longer to reach that oil temp, though after the ride the coolant fill level did not drop significantly. So, I would be happy about any advice on how to get rid of the remaining air in the system.

Greetings
Ryan

silver_tt

You need to use a vacuum filling tool with these cars. Since it's full now (just with some air) you will probably need to lower the coolant level a little and then use the vacuum tool to pull the air out at which point once it's at full vacuum you can just put in the coolant you took out to get to full.

TerrestrialFlyte

Yep!! Super easy with an Airlift. Put a vacuum on the system, fill up with coolant. Drive it a little, check the level, top off as necessary, repeat as needed until coolant level is in range.

Bruce In Philly

2009 C2S 191K

I have an Airlift and it was super easy and cool to use. But, there is another way to get the air out. First, put your heater on full hot to open the heater core. Then go out and drive and get you RPMs up to around 6K and hold it there. A few cycles of this should burp the system.

Peace
Bruce in Philly (now Atlanta)

TerrestrialFlyte

Yes, I forgot to mention that I ran full heat when I did my drives between top offs.

Wayne Smith

I picked up an Airlift before I installed my center radiator. I didn't feel it was thorough. Air at the front of the car may have expanded under that vacuum, but did it really get pulled through all of the ups and downs in the system so that it was actually extracted? It didn't seem so. Drive and burp and drive and burp finally satisfied my OCD.

TerrestrialFlyte

I did my water pump, LTT, some of the rubber hoses like the OP and also the 3rd radiator. Used the Airlift and then drove around with the heat on. I added coolant 2-3 times doing that process. Can’t remember how much, but it was simple.