Living up here in the great white north, i learned these tubes need to be warm to pull them out. Given my car was garaged, i used a heat gun along with the porsche tool to get these suckers out.

Great idea with the elbow, Steve.
I bought some 3/4" nipples, a 'T', and an end-cap (as somebody suggested in a thread somewhere). One nipple attached to the base of the 'T' and the top is used as a handle to help screw the nipple into the tube. I screwed it in until the tube started to spin (I didn't care about the threads cutting into the tube because I was replacing them). Once the tube started to spin, it would easily pop out with a tug on the 'T'. The end cap on a nipple is used on the most forward tube since the 'T' device won't fit very easily. One can pry on the end cap, if necessary, to pop the tube out, but I was able to just pull on it with my hand to get it out.
I took a video of me doing this and I'm attempting to post it. Once I do, I'll share the link.
I tried the transom plug, but once some oil got on it, it would just slide out of the tube and I was worried about cracking the tube by trying to expand the plug even more.

A simple bolt, a couple of washers and a couple nuts will get out even the worse glued in ones. I made it because the transom plug idea does not work for the super stuck tubes.

Simple yet effective...

http://986forum.com/forums/attachmen...9206061365.jpg


Attachment 18071http://img.tapatalk.com/d/14/01/09/ura9ynyb.jpg

Stick the bolt in so the washer catches the inside lip...
http://img.tapatalk.com/d/14/01/09/uga4e4ev.jpg

and use a screw driver or other prying device to pop out
http://img.tapatalk.com/d/14/01/09/y7ujyba5.jpg

Took longer to post this than it was to pull out the tube using this method :)

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Oh of course pull out the spark plug before using the tool

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Thanks All for your suggestions. Last night I tried the transom plug one more time and it popped out. Now all I have to do is fish out the piece of plastic that cracked and fell into the valve cover! I have a 99 and I think because they are so old they were brittle plus living in the Northeast the tubes were cold. I replaced them because they were leaking.

Glad to see it is working out for you. :)

took it to German Motors in Providence RI, had them replace the valve cover gaskets and change the tip fluid and filter. they got the plastic piece from the spark plug tube.