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Crud Behind Rear Wheel Arch Liner - Possible Corrosion Point

AlexG

PCGB Member
Member
All,

I searched, but I could not find anything related...

After picking up the 997 the other week I gave it a quick clean and noticed that the lower trim at the front of the o/side rear arch was not sitting tight against the sill. Looking closer it looked like there was the remnants of a rusty clip underneath.

image_zpsjjubfypw.jpeg


A few minutes looking through the parts catalogue seemed to confirm what I thought, so I ordered a new panel. It turned up Friday so yesterday I took the liner off to replace the old panel.

This is the area behind the liner, which was a bit of a surprise it was packed with mud and grit that has collected at the bottom of the liner:

image_zpsxh88gixs.jpeg


This is most of the pile of muck that I cleaned out:

image_zpsy7lpwnbx.jpeg


After thoroughly washing it all down I was expecting to find a nice thick layer of underseal type coating (like there is on the exposed parts of the rear arch), but while there is a thick layer of sealant on the seams, the panel itself is a normal 'hidden areas' painted finish.
Unfortunately, there were some small spots of bubbling/flaking paint and mild surface rust behind where the muck had been sitting (I was too invovled by this stage to remember to take more photos).

For now I have cleaned it down, removed all lose/flaky paint and given it a liberal coating of Waxoyl, which will prevent it getting any worse until it warms up enough to strip it and retreat it properly.

Is this a known problem?

If caught early it will be quite an easy fix because with the rear wheel off access is not too bad.

As an aside there is a spring clamp that locates/holds the trim onto the rear arch, the one on the panel I removed was pretty much rotted away.

image_zpsgicsunyq.jpeg


The clamps are available separately, but they are plastic welded onto the panel, but a new panel comes with the clamp fitted.
I ordered both the complete panel (which I have fitted) and the clamps, at some stage I’ll have a go at attaching a new clamp to the old panel to see whether it is an effective eco-friendly repair (cost-wise it would not make sense to bother).

 
Morning!

Thanks for this - I've spotted a similar occurance on my '05 997, to the point where I've actually got a bit of rust on both sides :(

Can you please let me / us know the costs for a replacement panel vs just the clamps as I'd like to get this done when the weather warms up to prevent it getting any worse. (Assuming the new-clamp-to-old-panel fix goes well!)

Cheers :)
 
OK Sounds like mine is not a one off...which I should probably be 'happy' about [8|]

The following prices are OPC with club discount:
  • Cover £37.33
  • Clamp £3.13
If using the old cover you'd also need a couple of new captive 'nuts'.
 

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