Bleeding Coolant after Heater Core

[navy'sporsche]

I replaced my heater core. It's now full of air and not coolant, the manual says to perform a coolant bleed procedure which seems straight forward enough.

I have been told on other forums that its "imperative" that I use a vacuum tool. Given the relatively small amount of air, can't I just perform the bleed procedure without any worries of cracked heads etc? Just want a backup on this considering thats what the manual suggests.

[logray]

You can follow the bleeding procedure from the work shop manual and it should provide a reasonable amount of comfort that you won't have any air pockets, provided you follow it exactly. Many have done this without any ill affects. I haven't read about any horror stories, provided you follow that procedure (if you are a contributing member here Loren has a post about adding a third radiator which contains some or all of this procedure).

That procedure can be somewhat lengthy and complicated, however is still not as complete as the vacuum method. In fact Porsche now uses the vacuum fill method (I understand they use an "airlift" like device).

To be 100% certain though, use a vacuum tool, such as the uview airlift 55000. It is well worth the investment and you can do any other car you own or friends cars as well, ensuring complete success and fresh coolant for the rest of the devices usable lifetime.

I've used my Uview Airlift 550000000000 about 6 times now and can't say enough good things about it.