Steve Sage,
Popping the hood does not seem to do much good, when my car ran like
that, with much the same symptoms. Now it never tops 190 F even with 105
F temp, however, in a heavy stop-and-go traffic up the I 405 hill
between W. LA and the valley it can hit 210 and higher. I manually
switch on the electric fan in front of the radiator. In five minutes
the temp has dropped to 190 F, and I turn it off.
You want a PERMANENT fix? Then only use it in the winter. :-)
Read TigersUnited.com Tech Tips "Cool It, Buddy" for the solution, and
if the air conditioner heat removal radiators are under your hood, this
will add to your under hood temp to a great degree. It depends on the
efficiency of your new radiator in number of rows, number and size of
tubes, and number of fins/inch. Dimensions it article.
http://www.tigersunited.com/techtips/SteveLaifmanValance/pt-SteveLaifmanValance1.asp
About A/C heat removal radiators, the VW had the after market A/C
radiators mounted on brackets under the floor boards (2). My Red Toi has
them mounted in 2 small oil cooler sized radiators (with fans) behind
the wheels under the front fenders. Not sure there is room for this on
the Tiger.
Steve
___
Steve Laifman
Editor - TigersUnited.com
Steve Sage wrote:
> Now that we've got rid of my screeching fan belt noises, here's a new
> question for the list.
>
> I've moved to a very hot (in the summer) neighborhood (southern
> Arizona). It's been 100-110 degrees out for the last couple of weeks.
> With outside temps over 105 or so, the Tiger's water temps. get a bit
> higher than I like, hitting 220 or even 230 in stop and go driving. It
> goes down a bit at highway speeds. The guage temp. readings are
> accurate within about 5 degrees, as I spent a lot of time a couple of
> years ago calibrating the guage. The car does not loose a drop of
> water, but I'd be a lot happier around 190-200 degrees on the guage.
> In cooler weather, by the way, it runs proportionally cooler. The
> radiator (new last year) is in perfect condition, and I use a Gano
> filter with it to keep it clean.
>
> At idle, I notice a pretty good small stream of very hot air coming
> out from the drivers side back corner of the hood, where my hood does
> not fit quite perfectly. This got me to thinking if propping the hood
> open slightly during very hot weather will help the car cool a bit
> better. I figure any hot air I can get out of the engine compartment
> would be a good thing. I have known that the Rootes factory road
> racing and rally cars (Tigers included) often ran with their hoods
> like this, maybe an inch or two open. If you have the "Tiger, An
> Exceptional Motorcar" book by William Carroll, check out page 102-103
> where it shows and describes exactly that, and on page 104 at the top
> where it shows a Tiger winning the Monte Carlo Rally of 1965, also
> with the hood propped open this way.
>
> So....I'd like to try this with my Tiger. If it helps, great. If not,
> not a big deal. It's easy to prop the hood open (rubber blocks, etc.),
> but I can't quite figure, and the pictures aren't clear enough to
> tell, how they kept the hood in a fixed position so it didn't "float"
> open at high speeds, as I know from experience they will do if not
> latched down. Does anyone know what setup they used to do this, or
> anything that would accomplish this trick?
>
> Steve Sage
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