Step 1. Strip the car
Rear wheels off. Remove rear reflector & lights, arch liners and bumper. Disconnect wiring loom to right rear light and disconnect engine lid light, to avoid a flat battery. Some of the nuts & bolts may be a bit stubborn, especially if they haven't been touched since the factory, so it's advisable to buy replacements as some may need hacking off. A light spray of WD-40 also helps to loosen them off.
Step 2. Remove the heat shields and support plates
Only some light surface rust, but nothing to worry about. Phew.
Step 3. Prevention
A) Sand back any surface oxidation, taking it right back to the bare metal
B) Etch Prime
Etch primer is combined with acid so that it microscopically etches the surface of the substrate forming a physical and chemical bond between the two.
Seal with TIGERSEAL, a polyurethane sealant and adhesive that's ideal for keeping the oxygen and water out, whilst bonding the chassis leg to the support plate. Applied with fingers giving it a rough textured surface to match the finish on the inside of arch. Drying time 30 - 60 mins. Once cured over-painted with some satin black aerosol paint to blend it all in.
D) Reinstate the support plates and heat shields
I thought it best to do the job to last a life time so bought some new parts. Ty had the support plates sprayed in matt black for an additional layer of protection. And then Craig smothered them first with some spray-on Waxoyl (rustproofing for cars) and then secondly with another generous helping of Waxoyl - this time the clear gunky stuff. Layer upon layer of protection.
Step 4. Put car back together
Rear wheels on. Reinstate rear reflector & lights, arch liners and bumper. Not forgetting to connect wiring loom to right rear light and engine lid light (which Craig says has happened, more than once, oops).
Job done. A big thanks to Craig who did the work. And a pleasure to hangout with the guys at Riviera today.
Here are the materials:
Here are the part numbers for the original Porsche parts:
993.504.116.00 GRV Support Right, £74.94
993.504.115.00 GRV Support Left, £74.94
993.505.645.00 Heat Protection, £59.39
993.505.646.00 Heat Protection, £59.39
999.049.025.09 Retaining Nuts, £0.56 x4
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