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I found those little sponge-looking dremel polishing attachments work real good for stripping off the chromate, but you can go through a bunch of em fast (especially if you tear one up on a sharp corner), and they ain't cheap.
Fine grit paper works good, too, though slower. Wear a dust mask; that chromate coating probably isn't too good for the lungs. |
Here's my chromate stripper (or is it cadmiunm?) although I haven't yet used it for that purpose on purpose:
http://memimage.cardomain.com/ride_i...0121_large.jpg It works really well for polishing your alternator too (you can also see where I accidentally stripped the chromate off the alternator): http://memimage.cardomain.com/ride_i...0122_large.jpg http://memimage.cardomain.com/ride_i...0266_large.jpg http://memimage.cardomain.com/ride_i...0252_large.jpg http://memimage.cardomain.com/ride_i...0120_large.jpg And air pump (when you have one): http://memimage.cardomain.com/ride_i...0123_large.jpg |
Nice... I wish I had a bench grinder. Only bench tools I have are my drill press & vise.
The alt and stuff is probably cad plate, yeah, or straight zinc... the zinc chromate coating is what you find on the lighter parts, like the diaphragms, ratsnest tubing, vacuum hardlines, etc. It's kind of yellowish with a rainbow hue when new. Passvation coating for aluminum and light steel that prevented galvanic corrosion, but over time it chalks/pits/corrodes, especially in salt air. |
Originally Posted by ray green
(Post 8799095)
Yeah, first Nikki I put together I put the gasket in backwards (beer). Didn't notice until I tore it down later, maybe explained why it wasn't working right (although it worked pretty good).
RX7 Boss, this thing is the "the main air bleed control solenoid valve". I have no idea what it does. https://i216.photobucket.com/albums/.../carbdiff2.jpg Also too you probably need to put some of these little brass things in those holes you got: https://i216.photobucket.com/albums/.../carbdiff1.jpg https://i216.photobucket.com/albums/...boss/carb5.jpg PS, I've got some if you need them i dont have threads for them in my carb |
Originally Posted by waysrx7
(Post 8811539)
^^ Your carb isn't supposed to have those jets/air bleed. Not all of the nikki's had them, the rx7 carb manual tells you exactly which years and models had them. If you look in the holes they are not even threaded to accept anything anyways, which means that circuit within the carb was never functional from the factory.
Long story short, not all manual 1st gens had those and your carb looks normal. |
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