The tach on my A has a 'yellow' line at 5500 rpm and the redline
at 6000. I do have the original tach in place. Oh yeh, I do have an oil
cooler.
Gordie Bird
62 MGA
**>**>Deal List:
**>**>
**>**>This whole discussion makes one wonder about the meaning of the
**>**>redline is,
**>**>anyway. I assume it represented the point at which the cooling
**>**>system could
**>**>no longer dissipate heat at the rate that the engine produces
**>**>it. However,
**>**>in going through boxes and piles of used guages at different LBC
**>**>events, it
**>**>seemed that they all pretty much had the same redline at about
**>**>5500. Every
**>**>single one had the same redline, although the tachs were
**>**>allegedly for all
**>**>sorts of different marques with widely varying engines.
**>**>
**>**>I now suspect that the tachometer backgrounds were all printed
**>**>by the same
**>**>printer at the same time by Smiths, and BMC just ordered them
**>all. Thus
**>**>regardles of where the engine should top out, all MG's seem
**>to have about
**>**>the same redline. (They didn't alter the tach on cars with an
**>**>oil cooler,
**>**>did they?)
**>**>
**>**>Regards,
**>**>
**>**>Charles
**>**>'74 Midget
**>**>cdsorkin@ix.netcom.com
**>**>Bloomfield, NJ
**>**>
**>
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