R33 Gtr - Is This Rust Common? (hard To Explain - Pics Attached!)

[KR4-GTR]

Hey guys and girls,

I have a bit of rust in a section which is a bit hard to explain. its near the bottom front window plastic and under the side guard. (i've taken a few pics)

It hasnt gotten any worse in the close to 3 years i have owned her and only looks like surface rust. I've been meaning to sand it back, seal and recoat with some touch up paint for a while but havent got around to it yet.

Anyway, is this a common problem? Does anyone else have it?

Any info or advice would be appreciated.

Cheers!

Edited June 20, 2009 by KR4-GTR

[GTR-N1]

Just a couple of Qs...

It looks as if there's been some fixed-up panel damage > re-weld does it not?

It looks like surface rust only; but is there any bubbling especially if you press on it?

Have the corners of the panel bolts been chamfered as if the panel's been taken off?

Does water sit there after rain or wash?

Does the moulding at the base of the windscreen need replacing?

btw, surface rust can lead to 'cancer'

[bigmikespec]

That is the exact same place as where I have a bit of rust on my R33 GTR too mate, you are not alone!

Mike

[cosmic starz]

if its stabilised for past 3 years why worry about it - for peace of mind a quick fix is to get a spray can of fish oil and spray the discoloured area this seals and prevents against any rust - will kill any rust if it is rust - done !

[bigmikespec]

if its stabilised for past 3 years why worry about it - for peace of mind a quick fix is to get a spray can of fish oil and spray the discoloured area this seals and prevents against any rust - will kill any rust if it is rust - done !

Touche'... that is what I am going to do until one day I can get a respray!

[Nismo_34]

Yeah i've got a bit of that rust too on my 33 GTR, apparently its common on the 33's so i didnt think to much of it, a bit of fish oil and it'll do the job.

[cosmic starz]

I think you will find its not corrosion in the usual sense - I think its that the finish colour has been applied very thinly over the etch prime in out of place areas when the body is painted at the factory - you see the same discolouration in various places in some Jap (and other country) cars e.g. inside where intrusion bars are fitted in doors , in hard to get to places on the body panels where front bar is fitted etc - its normal , just like orange peel finish was normal on outer underside edges of US made cars some years ago

[TENSE]

where can one purchase this fish oil stuff from? do they come in them sprayable cans?

[KR4-GTR]

thanks guys for the info and reassurance! will definately do some research on the fish oil.

great to know i'm not alone

cheers

[gotRICE?]

My 33 GTSt has the exact same surface rust too.. so must be a 33 thing

I dont look down there so till now id forgotten! Thanks! haha

[cosmic starz]

where can one purchase this fish oil stuff from? do they come in them sprayable cans?

repco supacheap ..........everywhere - about $6-8 usual larger size spray can

when it dries fully it is usually clear - you could spray paint over it if necessary

[Kujotk]

yeah my series 2 gtst has the eaxact same surface rust..... just how the buggers are.... i'd only really worry about rust if you see it bubbleing and going down deep..... usually first place serious rust starts on our imports is under the wheel arches where the japs throw salt on the icy roads to reduce the slipperyness of the roads.....

[Wacky Dee]

hey ya'll just been doing some reading on the various treatments of rust ... apparently fishoil is good for preventing any new rust but it won't get rid of any existing stuff plus it doesn't penetrate existing rust which could lead to more rust

Apparently a product called 'Penetrol' available from Bunnings actually penetrates rust deep and takes away the Oxygen and stops any further rust from forming .. apparently don't even need to clean the rust spots up before applying this stuff. Anyone used it before ?

[dyl33]

I've got alittle bit of this surface rust starting both sides, Do not like looking at it. Cars mint other then this, So would like to fix it.

How would I go about fixing it. It looks simple enough to do myself, Taking side skirts,front fenders and front bar off is the only fear I have, Then sand it body filler if needed then paint it, And make it look beautifull again, Has anyone had this and fixed it. Did you go to panel beater or DIY it?

Or is going this far not necessary, it just looks sh#t

Edited August 8, 2012 by dyl33

[GTR-N1]

Step 1) Conversion paint that eats up ferric oxide and like that stuff in the above post robs the metal of oxygen

Step 2) Fish oil spray

[dyl33]

So I spray/paint rust conversion paint over it ( is there a special brand to get?) , Then spray fish oil over it?

[GTR-N1]

The Conversion Paint is easily brushed on with a quality long hair brush. It does not affect the colour of your existing paint, because it dries clear. Within an hour the difference is there before your eyes.

The Fish Oil I have is in an aerosol can.

This process stopped any more rusting of an Alfa Romeo in its tracks. Any automotive paint shop has it - but I don't know about Repco/Auto1/Supercheap

[Nanogrip]

Hmmm, I usually treat rusts with the usual wire brushing for removal, then zinc spray (lightly), then spray paint over. No oils of any kind or rust converters. Opinions in this gents? Never knew about fish oil until reading through SAU forums, got to learn boatloads, especially from the build section.

[lolorodeo]

I had the same problem and although it wasnt progressing over a few years i still decided to fix it. Just remove the arch, wire brush and sand it back as far as u can to really clean it up. Its usually just surface rust with some pitting. Then apply some rust converter (which youll get from supercheap etc.), give that the recommended time to penetrate and then u should be able to blend the colour or ive just sprayed the area matt black because it cant be seen unless u look. Thatll hold it off for quite awhile. Ive had no issues since.