QUOTE(detoxcowboy @ Jun 30 2010, 01:07 PM)
But before you try bumper black, first try a good cleaning with a soft brush & soapy water (get down into the pores) & dry it off well then dry in sun all day), then try giving it a good spray over with something like Wurth Rubber Treatment (it adds back the polymers & oils to keep it pliable & return the blackness from drying out - Wurth R.T. also available at AA, Peli, PP/A, etc.) & let it soak over night, then respray & soak/dry again (wipe off excess each time).
You might be surprised how much the black comes back after that treatment! (once you've had it black, you'll never go back!
)
If that doesn't work & it still looks whitish or grey, then either try the bumper black (careful as it will stain the paint & try not to get runs or bubbles on the "rubber" as those will stay & show), or the old timer concours guys used to use black shoe polish with touch-ups of same every few months or year (based on wear). I've used both methods with success.
BTW - these are really a black colored soft closed-cell polyurethane foam (really not all that closed-cell, as can be seen by the dimples across them from rusting mild steel innards & looking at the rust on the toppers' & tits' backsides & studs) - not "rubber" per se.
Rob - they served 2 purposes in the case of the toppers -
1. was to seal the gap between the bumper top & bumper - although not a watertight seal;
2. as a "resilient bumper edge" with the small overhang on the top (like rubber bumper pads/strips in the middle of some bumpers)
3. the "tits" were 3 mph interim crash resistant measures to meet the 73 F & 74 F+R DOT crash worthiness regs., until the 5 mph reqt.s starting in 75 MY (shock mounted big bumpers on the 914s F&R to meet that reg.).
John - I wish I'd know you needed a nice set of toppers, as I sold a perfect 9 or 10 or 10 one off my 71 core chrome bumper a few months back for $100 (good clean studs too), which btw I'd done the clean & Wurth treatment above to bring it back. I still have an extra set of nice 8-9 of 10 front tits L&R (with replaced studs), & an new rear OEM topper (expensive sucker!) which I may not ever use, as well as a used one off mine with some small blemishes, if you ever need them. I got Mikey914's F&R toppers with the SS studs/innards & better rubber to use on mine, plus 2 other sets of perfect front tits to use on my resto (1 set as back-up parts since they're NOS). You've got my #!
Cheers!
Tom
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