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TR2/3/3A TR3A...Kicking accelerator pedal lowers idle?

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TR3ATR250 said:
Hay Randall I often thought of getting a heat shield too for my 3 but was concerned that the shield would hold more heat in the lower engine compartment. Being that the generator pulls it's cooling air from the back side, wouldn't it pull in super heated air and over hea he generator?
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That could be a problem, but I've not heard anyone complain about it. Since it's already sucking air from just an inch or two away from the exhaust manifold, I doubt the shield will make much difference.

Anyway, I'm going to find out the hard way. Kind of a shame if so, since I believe that is the original generator (with bearings and brushes replaced, of course).

If it does go, I've got a mini alternator sitting on the shelf waiting to take its place.

BTW, several other cars of the period came with heat shields. MGAs even had asbestos insulation in addition to a metal plate.
 
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