Re-Furbishing 3 Piece Racing Wheels
Ok ... I need the final "truth" when it comes to the process and material(s) to be used to refurbish and re-coat (paint?) racing wheels. I have four (4) full sets of Jongbloed #215 wheels which this past weekend I removed the centers (all 288 nut, bolts and washers ) from the rims – This weekend I will be stripping off paint, using " ______________________________" [aircraft stripper, paint remover ? ] and then getting them "blasted" by " ____________________" (please insert soda, or plastic, walnuts or other media [ I know NOT sand or glass]). Then to crack testing at a NDT* Service- When done do I "buzz bomb" them with " ____________________________" (Home Depot, Eastwood stuff?) - spray gun with " ___________________" (epoxy, PPG something ?) and then do you clear coat for ease of maintenance , with " _____________________" (paint, etc.) I have searched the forum and again the consensus seems to be NO POWER COATING. Afterwards, re assemble with new Allens and metal locking nut (w/ Loc-Tite ?). Use and seal with Dow Corning Silicone Adhesives/Sealant 832 ([a] on the flat bolting surface AND on the crease AFTER the wheel is assembled OR [b] just on the crease aftre assembled -- Hardware: the wheels have these what appears special Allen headed bolts that are tapered and are wider at the bottom (a source ?). How about one clear thread with experienced comments ?
Non-Destructive Testing service/quoted $20.00 per center,
Anyone recognize these wheels?
Didn't chime in earlier so I wouldn't hijack your thread. Anybody know anything about these wheels? they came with the car 15 yrs ago. One is marked 215, and is gold front and back. The other is silver on back. I would guess the 215's had a more compulsive painter, as opposed to a Magnesium vs aluminum center. Does NDT really tell you they are safe? I've heard they don't necessarily crack before failure. Any idea of the expected life span of this type of wheel on an FF? Who does NDT?---Jim
PS: what's a buzz bomb?
Pics of Cracked/Failed 304s
See the attach per numerous inquiries inc. DW
Braking or Lateral forces
Dave, you comments raise an interesting question.
Are the damages due to lateral or braking forces?
Braking forces would create a tortional force about the axle generated by the brakes. Would not this force be carried by every spoke near equally?
On the other hand, lateral force on the contact patch is carried by one spoke with the help of its two neighbors. If the logic is valid, then lateral force creates from 3 to 9 times the load on a spoke as does braking force. Now the geometry favors the spoke handling more lateral force - not sure what that number is.
My experience with my FF is that the max lateral G's I've ever seen on my data system was 1.8 compared to 1.3 in braking.
So, I stand to be educated.
Wishing you well.