OSPHOI have this thing about clean nuts and bolts. It might be because I am an engineer and understand the importance of coefficient of friction in torqueing. But maybe, just maybe, it is because I started out with VW Beetles and every fastener on those cars would rust solid. All I had was a minimum of wrenches, some screw drivers and one hammer. I didn’t even have duct tape (it was called racer’s tape back then). About 90% of the time on anything I did on my Beetles was chewed up getting those darn bolts off. We won’t even go into snapping off those tiny little bleeders on the wheel cylinders. When I got my first RX7 I couldn’t believe that Mazda had plated all of the fasteners. My life got so much better and not just because of having more than double the horsepower.
Ospho has been mentioned on this site a few times but it wasn’t until rx7locost posted about soaking fasteners that I went looking for it. People had said it could be found at Lowe’s or Home Depot. Nope, both places said they don’t carry it. The Ospho site says Ace or Truevalue has it. Nope again, I was told that they don’t carry it. So who does? Amazon does. I’m not sure if mine came by truck or by drone, I wasn’t home and the cats wouldn’t say. Anyway here it is.
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You really don’t can’t see from the picture how rusty the nut and washer on the right are. I soaked them overnight and they turned out great. I haven’t gotten a lot done on the build this week because I’ve been soaking and painting nuts, bolts and washers. Too bad I can’t soak this subframe.
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I’ll wire brush it and spray it with Rustoleum rusty metal primer. If the car turns out well, I’ll send it off for blast and powder coating.