I am in the process of restoring a 1974 911. I made the ultimate mistake of buying the car sight unseen off the internet - and it wasn't quite what I expected - it needs a considerable amount of metalwork.
A "short" list of issues include:
- the seat mounts and inner sills / longitudinal's have been cut out so the PO could mount a set of BMW seats
- a number of large holes, some as big as 6" diameter have been cut in the firewall
- the RHS footwell (the panel between the footwell and the smugglers box) has been cut out
- 27 holes (3/8" diameter) have been drilled in the floor pan
- the front trunk has all sorts of holes cut in it
What makes it worse is most of the holes look they have been cut with either a cold chisel or an oxy torch.
I have removed all of the bolt on parts / windows and mounted the chassis on a rotisserie. In order to streamline the metalwork I am going to have the chassis sandblasted (dustless blasting) so that I can start welding up all of the holes.
I can handle the metalwork myself and will farm out the painting. As the metalwork will likely be carried out over the next few months (I have a day job
) I am concerned about flash rusting after sandblasting. The car is in my basement garage that is climate controlled.
I have done some searching on how to prevent flash rust starting after sandblasting but couldn't find anything recent. What suggestions do you guys have for preventing flash rust after sandblasting?
Thanks in advance,
Richard.