Date: Mon, 24 May 2004 21:56:42 +0100
From: Johannes H Andersen <johsnospamfitter_spam_gets_fried.com>
Subject: Re: replaced DCI cassette


-Bob- wrote: > > On Mon, 24 May 2004 10:52:13 -0300, Dexter J > <lamealameadingdongnospamlamelame.org> wrote: > > >Also depends on whether or not the coils are in fact > >being baked by the head or are simply too lightly built for the job. > > I think it's a heat issue, but that's only a guess. Every car that > I've run into with this system has the same problem with early burn > out. The only common thread is the heat/location - that is, they > all sit right on top of the cyl's. I know Audi/BMW had a problem > with a Bosch coil recently where they wore out in 30K miles... so > many that people were waiting weeks and months to get their cars > back on the road. That was probably a "too light for the job" > problem. Just a seat-of-the-pants guess though in both cases. > The problem is also the cramped space for the coils, that limits the gauge of the copper wire and hence it heats up. Perhaps if they used gold wires instead, the heat could be reduced since gold has higher conductivity :-) BTW use of gold. The most expensive road car AFAIK was the McLaren F1 supercar 650,000. They used gold foil in the engine compartment to shield the GRP body from the engine heat, it costs a fortune. Once saw them racing on TV. One McLaren F1 came round the corner and smashed into another...McLaren F1. I felt sick!

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