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Corrosion Prevention on window wing interface

Cater_Racer

PCGB Member
Member
My UK based 993 Targa is used intermittently, I'm home in the UK for a month or two, then away for 4-6 weeks, so I store it in a dry garage with a battery conditioner keeping things ready for my return.

Every time I put my Targa to bed in the nice dry garage I wash it first. Then chamois dry. I have noted that the strip on the rear wing/windows interface always contains water. Pressing the strip down results in a dribble of water down the wing, and down the B-post inside the door. So I try to get rid of this with WD40 and paper towel.

There are now signs of corrosion beginning to take hold, if you look at the leading edge.

I'm thinking of trying a more robust approach of letting it dry for a month or two (I'm away later this week until late March) and then lifting the rubber strip and spraying Dinatrol into the cavity.

Any ideas of the best approach for this? Should I try rust killer/converter then Dinatrol?

P1020575.JPG


Help appreciated.
 
The only real way to treat rust is to cut/grind it out and refinish the area.

Dinatrol is very effective at slowing rust right down but it doesn't cure it. If it was mine and I was going away with no time to investigate fully I would lift the rubber surround with a soft wooden implement or similar and warm the area with a hairdryer so the dinatrol flows well and spray carefully. Do not let the seal drop back until the Dinatrol has set/cured for say 24 hours. This should give a decent level of protection.

If possible always drive after washing - I put my wife's Audi in the unheated garage after a wet run before Xmas many years ago and was dismayed to get it out two weeks later to find it was still wet !!! Never again.

I was once told by a historic restorer always to put my 993 into the garage dirty (But dry) and resist the urge to clean it until the next time I was to use it. That way it is used straight after cleaning and dries out in half an hour. I try to do this but it is difficult to see it in there dirty !!
 
I was once told by a historic restorer always to put my 993 into the garage dirty (But dry) and resist the urge to clean it until the next time I was to use it. That way it is used straight after cleaning and dries out in half an hour. I try to do this but it is difficult to see it in there dirty !!

That has been my method for many years unless the car has something nasty on it like horse sh*t. Cuts down the rusty brakes problem too.

Ian.
 

ORIGINAL: John Maddox

I was once told by a historic restorer always to put my 993/964/other car* (delete as appropriate) into the garage dirty (But dry) and resist the urge to clean it until the next time I was to use it.

That's my excuse too!! [;)]
 

ORIGINAL: John Maddox

The only real way to treat rust is to cut/grind it out and refinish the area.
Agree 100% - and in this case the sooner the better, that corrosion looks like it is at an advanced stage.
Regarding the cause, I'd be very surprised if it was solely due to the car being out away wet (although this should be avoided if at all possible). There has been some abrasion damage at some time - such as a nick when the trim was fitted, or something caught between the door and the quarter panel when the door was shut.
A rust treatment should be applied to slow the corrosion down until the repair can be done properly.
 
Thanks Chaps, I've done a quick and dirty, kurust job and soaked with 3 in 1 penetrating oil.

Hopefully a holding op until I'm back in late March.

I don't think its quite as bad as you think Chris, it cleaned up well, and I'm optimistic that I can recover things to an acceptable level without major surgery.

The car is very neat, but it's my daily drive in the UK , so I'm not looking for concourse.

I'm just hoping it will see me out, I'm 62 and don't want to be buying any more cars....... :)

The next owner (my son Tom) can spend the money if he wants to, long after I've moved on.

Gerry



 
I'm the same age as you and my son is Tom also - he yearns for my 993 but he will have to wait as I am not going to stop driving it 'till I'm in a box.!!
 

ORIGINAL: John Maddox

I'm the same age as you and my son is Tom also - he yearns for my 993 but he will have to wait as I am not going to stop driving it 'till I'm in a box.!!

My son (not called Tom) has also told me that the 993 is his inheritance and I am only looking after it for him. But I'm ten years younger than you pair so he has a lot longer to wait than your sons (hopefully).

 
oh dear - you've started me thinking now. Always assumed I'd drive it until I'm in a box, but had not considered what after that (I don't have a son!)
 
oh dear - you've started me thinking now. Always assumed I'd drive it until I'm in a box, but had not considered what after that (I don't have a son!)

Get yourself buried in a car-sized "˜box' and take it with you, ancient Egyptian style[:D][:D]
Imagine the commotion when the archaeologists find you in 3050[:-]
 

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