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I know it's just symantics, but you say that you want to “over-engineer” the sub frame. In order to do that, you must first engineer it, and then exceed those specifications. I think what you really meant was that you want to “over-build” it.
In any event, here is some useful info that many of us take for granted in understanding.
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You can use a dielectric epoxy to “pot” the circutry.
Potted circutry has been around for a long time and is very effective in harsh environments.
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From what I know, hot-dip galvanizing of grade 8 bolts is not a problem.
The question I was going to ask but has already been raised is: Why use grade 8 bolts? No real reason in this application as far as I'm concerned. Grade 5 is quite sufficient as you can see, and this or it's metric equivalent is used by most equipment manufacturers except in very special applications.
See ASTM bolt properties here (probably not what you expected).
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Unless you have previously drained the reservoir, you stand to lose a lot of oil unless you plug the hose end. This is the pump suction side and it is ~3/4″ ID unrestricted all the way back.
What exactly are you trying to do?
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Well, it's just getting too cumbersome for me to post pics here and have control over them, so the pics are here. Hal will probably pull this message down so I will email you the link as well. Anyone else? Let me know. Thanks.
I'm not totally sold on cloud computing yet.
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Not a big job, had one of mine delivered that way. I'll post pics when I get home.
You don't have to pull the rollers to do it, just jack up the track frame to take the load off the roller (spins free), drop the shaft supports (inside and outside), draw the shaft out, reverse it, slide it back in (careful of the seals) and button it back up. Keep it clean.
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Just get the black carburized grade 8 bolts and coat them liberally with Cold Galvanizing Compound (spray can) before and after assembly, then finish paint with two coats. I have used this at sea for years.
You can get the bolts hot dipped also – for a nominal fee.
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You can start a new thread if you want I guess.
I'm surprized you found yellow zinc plated bolts at all because most all zinc plated products are silver colored. I think you will have better luck searching for di-chromate plated or cadmium “cad” plated fasteners, both of which are yellow-ish gold in color.
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Larry, for some reason that link didn't work.
Try this one.
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