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Originally Posted by orange4boy
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Have they figured out what makes them short out? . . .
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That remains an open question. I found one Japanese paper about voids in the potting compound and high dV/dt leading to coronal discharges in the voids. But the problem is once the internal short starts, it pretty well wipes out the initial fault ... for folks with ordinary means.
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Originally Posted by orange4boy
. . .Electric motors are notoriously robust, their main enemy being heat. In an oil bath I suppose debris might also pose a hazard.
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I've seen some pretty rank oil samples and suspect two things:
- manufacturing debris - my 5k transaxle oil change showed a small amount of metal shavings. Leave them in for 60k miles and who knows what damage they might do.
- micro-dieseling - admitted a long shot, I suspect high-speeds lead to micro-dieseling and accumulation of combustion by-products in the oil. These are conductive.
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Originally Posted by orange4boy
. . .Is there a fluid cooler on these? Who winds them? I'm guessing it's Nippon Denso.
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No idea of who makes them but there is no fluid cooler and my temperature measurements indicate none is needed.
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Originally Posted by orange4boy
. . .I found some OEM shop manuals on ebay. I guess I should get the 2003. They seem to be about $130-150 a set.
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That seems to be the going rate for used manuals. I bought mine new for double that.
Bob Wilson