Smig

The Targa is known for the rear wiper shaft inserted in the glass to seize solid,so many people block them off. I have just removed my shaft which was impossible to move,it took patience and a gentle attitude. The Targa rear screen is said to be strong but I would go on the side of caution on that. FIrst the wiper arm bends very easy and will shred the shaft very easy or even break,the Sleeve of the shaft is part of the window please don't try and remove this,the shaft is machined very well and there is no free play this is why it seizes so badly. First I removed the wiper arm which needed a bit of hard pull but finally came loose,next I soaked it in penetrating oil top and.bottom and squirted every hour or so for 24 hours,not sure if any actually got down the sleeve. Next my idea was to heat the sleeve up,but not a heat gun or torch obviously,but by steam, yes steam. I have a steam tool which we brought for steam cleaning household items small but you can use for 15 minutes each fill up. Waiting for it to boil to steam I removed the shafts circlip and washer (don't loose these) and put aside,I replaced the shafts nut and got out my small hammer,I covered the cars back end to protect the paintwork. With steam presure up I proceeded to heat the sleeve from the inside of the glass where the motor catches the wiper motor, follow from the nut vertical and you can feel the shaft through a space in the framework,you can get to about 85% of the sleeve but the steam heats the sleeve very evenly. When the sleeve was hot I lowered the glass so I could hold the glass comfortably under the fitting,and tapped the shafts top nut with the hammer It sounds solid as though your hitting the glass,yes it's scarry but with confidence you get comfortable doing it,don't get impatient and whack the shaft hard,reheat the sleeve when it goes cold after about 2 mins,on the third heat up the shaft moved I lost sight of the circlip grove ,slowly heat tat,heat tap the shaft came out ,it was in a right mess very rusty,on the shaft are 2 washers on the bottom (don't loose them) this had took me 3 hours so if you have no patients don't try this take it to Porsche and pay. Next I cleaned out the sleeve steam again and penertrating oil and a wire brush made for plug holes until it was clean again,the shaft was soaked in penertrating oil and emery papered smooth ,the whole lot was greased pushed and moved around taken out and cleaned again ,finally regressed and fitted back with the 2 spacer washers refitted at the bottom,the washer and circlip refitted,the wiper was tested and worked a treat,I then put the wiper arm back in place. Steam is a great way of heating things up we use it at work in positions where flames are not allowed,steam will burn so be very careful. I hope this helps all you seized wiper shaft people out there,but please be patient And take your time it will work. This is done at your own risk I take no responsibility if you damage anything. I have pictures if you would like them sending Thanks for reading Smig