On Wed, 30 Jul 1997, Bill Schooler wrote:
> > Ulix wrote:
> > > I don't turn the hot water tap off because supposedly that inhibits
> > > cooling of No.4 cylinder.
> >
> > Really? Any comments from the peanut gallery?
>
> (Oh, what the heck - I'll chime in with flame bait.) I've seen this
> nonsense comment before and don't believe it in the least. Remember
> that this car was often produced without a heater at all. In many
> markets, particularly the home market, a heater was an optional extra.
> I had to laugh at the thought of driving around in these temperatures
> with the heater radiator on. Good grief.
>
> Okay, I've done my best to get somebody's goat ;>) so let's hear an
> explantion that makes sense from someone who buys into this theory. I
> say that what you are doing by leaving the heater valve open is simply
> lowering the overall coolant temperature by just a bit. Number four
> wouldn't benefit any more than number one.
I read this in Stapleton's book "How to make your Sprite outperform a
2liter twincam crossflow MGB", or some such title. He said that if you
are removing the heater, replace it by a hose rather than blocking it off
to keep water circulation going in the back of the block.
I don't know how the water passages are designed in the rear of the block
and what the pressure loss between the front and rear of the block is, but
it probably can't hurt to have that extra pathway for hot coolant from
the rear of the block back to the front.
Ulix __/__,__
.......................................................... (_o____o_).....
'67 Sprite
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