Rusty 911's...
Author
Discussion

MJK 24

Original Poster:

5,679 posts

266 months

Monday 1st January 2007
quotequote all
I follow many of the threads on here, and whenever someone asks about buying an SC, 3.2 Carrera, 964 or 993, they're advised to check for rust.

As far as I know, Porsche were the first manufacturer to fully galvanise the entire shell before painting, circa mid/late 70's.

Audi followed suit in the early 80's and they don't rust at all, anywhere, unless it's poorly repaired accident damage.

Do Porsche's only rust when shunted or is there a genuine quirk with them suffering a little corrosion as they get on in years?

Ta

elliotdavies

131 posts

303 months

Tuesday 2nd January 2007
quotequote all
galvanizing is only a metal protective coating, if the coating gets scratched or rubbed away during a repair in the bodyshop rust can eventually set in, hence why some 911s and other models suffer around the glass because the fitters scrape away the glue and damage the galv. protection.

POORCARDEALER

8,667 posts

271 months

Tuesday 2nd January 2007
quotequote all


they rust, without accident damage..........around headlamps, around fuel filler flap, around windscreen, sills, forget the galvanising, check them thoroughly.

drybeer

962 posts

255 months

Tuesday 2nd January 2007
quotequote all
Highly recommend you also check the B-pillar from the window frame downwards, essentially where it forms the front edge of the rear wheel arch lining - another bad point and a potentially expensive repair.

Also the bellows on impact bumpers can hide a multitude of sins on older less well cared for examples.

MJK 24

Original Poster:

5,679 posts

266 months

Tuesday 2nd January 2007
quotequote all
Was the 911 dipped in a tank to galvanise or sprayed? Just seems odd to suffer a little rot on such a well thought out, well built car.

Thanks

andymin

197 posts

242 months

Tuesday 2nd January 2007
quotequote all
The impact bumper models don't have any wheel arch liners or plastic underbody protection like the later cars. Road grime, dirt and mud collects in the rear wheel arch/sill area and behind the door slam/striker panel, 'kidney bowl' and sill replacement is common even on late 80's cars. At the front they rust through the inner wings where the bumper attachment is and at the top where the wings are bolted down. Headlight surrounds and corners of windscreens and sunroofs are other places that suffer from rust.

They are well made cars, but are getting old now, therefore if is important when buying to seek the help of someone who is familiar with these cars.

I have some pictures of my old car here which show the potential rust problems: www.carrera3.co.uk

cheers

Andy

drybeer

962 posts

255 months

Tuesday 2nd January 2007
quotequote all
andymin said:
The impact bumper models don't have any wheel arch liners or plastic underbody protection like the later cars. Road grime, dirt and mud collects in the rear wheel arch/sill area and behind the door slam/striker panel, 'kidney bowl' and sill replacement is common even on late 80's cars. At the front they rust through the inner wings where the bumper attachment is and at the top where the wings are bolted down. Headlight surrounds and corners of windscreens and sunroofs are other places that suffer from rust.

They are well made cars, but are getting old now, therefore if is important when buying to seek the help of someone who is familiar with these cars.

I have some pictures of my old car here which show the potential rust problems: www.carrera3.co.uk

cheers

Andy




Just want to mention - not altogether following the thread of this post - that that is a great and informative website Andy.

Well done - a genuinely useful point of reference for any prospective purchasers of older cars.

Andrew Dryburgh

KGV

91 posts

276 months

Wednesday 3rd January 2007
quotequote all
I read in one of the car magazines that to reduce weight on the new 997 GT3, they left off some undercoating/rust protection. Is this true, an if so, could this be a problem in 2017 when I can afford to buy a 2007 997 GT3?

Thanks