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The white spots on the Porsche type axle are from slight amounts of water that were left on the axles after they were cleaned. The water vaps off in heat treat and the dissolved minerals stay behind--in other words, they are water spots.
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Metalore's axle retaining system is pure genius.
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Quote:
David :):):) |
David - You folks are the cream of the crop! Simply awesome...
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I learned how to safety wire by reading Carroll Smith's books.
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The bearing that is marked "BAD" is used as a tool. The OD is ground down a few thousandths of an inch so it slides right into the upright without having to be press fit. The ID is also ground so the hub can slide through it. That way we don't have to press everything together to check the clearances.
http://www.clubcobra.com/photopost/d...um/book112.jpg |
The splines are a 45 degree angle for the strongest possible spline.
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I laughed pretty hard when I saw Sandwich's first line in the program. He was under a lot of stress working with very expensive raw materials for an extended period of time.
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More pics soon!
David :):):) |
David, what effect did the CV jont system have on un-sprung weight over the U-joint half shafts? (Granted, U-joint bind is the big factor)
I'm also wondering about grease compatibility with the silicone boots. (guessing you guys mainly use full synthetic like the mobil 1 stuff) I can also mention one benefit of the silicone boots you missed, cold weather hardening. (granted not a big deal for us guys in the swamp) I gotta warn you though, silicone has rather lousy shape memory (just like it's rubber counterparts), that area sealing to the shaft is not reinforced and may deform eventually. (unless there's something I can't see) Look at a stock CV boot, it's clamped at both ends. Granted your probably as aware as anyone about the importance of checking CV boots...:) |
The CVs are lighter. I am not sure by how much. I'd have to dig through my notes. It was something like 10 pounds, but frankly I don't remember right now.
I don't remember the grease we were running...hmmmm. It was some special synthetic grease. It was quite messy. I'll keep an eye on the boots. On a test vehicle we have run the inboard side of the CV boot unclamped for a long, long time without any problems. David :):):) |
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David, don't mean to hijack your thread but an idea hit me concerning the CV boots...
How about making them out of teflon? It's abrasion resistant, difficult to tear, has lousy elastisity but flexible (would minimize the expansion problem), chemical resistance better than glass, an even wider temp range than silicone, shape memory similar to a rock... This one I know you'll love, it's very light.:LOL: You would have to clamp it at both ends since it has no elastisity and possibly texture the flange clamp so it can't creep (although the silicone can also do this). Possibly a solution to a non-existant problem, but food for thought. Boot tears are the #1 culprit in CV failures that I've seen. Another thing I forgot to mention about silicone is it's tear propagation (nick one of those boots right at the axle opening). Other than the higher cost, teflon seems like a great material for the job. Not to rain on your parade, you guys have done something quite remarkable. I still can't imagine how you guys built those copper bodies, now this. You know you're making the rest of us mere mortals look bad...:o |
BTW, I wonder how much weight you could trim by using the silver plated, teflon jacket aerospace wire instead of the PVC stuff...
OK, I'll stop now.:LOL: |
Billet needed!
I am enjoying so very much having the PDF version of your book on my computer. I always have it open to one section or another so I can have the page as a background on my second monitor. Such beauty.
However.... (that is a scary word) I noticed in the chapter "Photo Finish" a picture (page 286) of the trunk showing... Horrors!!! :eek: A plain old stock steel trunk lid support. What happened???? Where is the ultra cool billet sliding latch, trunk lid support? Or even better, billet end mounts and a custom billet hydraulic strut. I'm shocked, SHOCKED! :JEKYLHYDE Mind you, I have studied every picture of the car for hours and hours and that is the only item I have seen that I felt wasn't "the best". Perhaps it was a temporary part? Fantastic car! One should be in a museum mounted above head level so we can walk under it to appreciate it all. Perhaps just a rolling chassis? Ahhh.... |
17-4 suffers from moderate SCC. I wouldnt use it in a sustained tension application. 15-5 is a better choice for anything exposed to weather.
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