{Sending this the 2nd time. Not sure it got through the 1st time}
> However, note that TeriAnn was talking about having the bypass fully
> blocked.
>
Randall, is the skirt not some sort of tubular shroud that moves in
and out as the therm. opens across that slotted by-pass hole? In
that case it would have to be a very loose fit, (probably non
contact) to prevent potential sticking of the thermostat, thus being
quite incapable of fully blocking the bypass.
Besides, I doubt that the thermostat works in a snap on-off fashion
and that there is a range were it actually regulates an varies the
flow distribution.
> And I will repeat my original point, which is that if you are having
> problems with the engine not coming up to temperature;
>
I know I didn't put this very well in my original post, but this is
the scenario:
a) Thermostat pan tested twice to start opening at approx. 175: and
fully open at 185:.
b) By-pass blocked about 65-70%
c) My gage is calibrated and accurate within about +/- 5 : at the
185: dot and at the 1/2 way dot at about 150 - 160:
d) On a cold morning once, of about 40:, it took at least 10 miles
before my gage came up to 1/2 way dot and never made it to 185:
unless i was stopped at a light for a while. Seems to me, that is too
cold for an engine to run. Letting it sit and idle for a while, as
expected, the needle would come up to little below the 185: mark and
stay there.
I recently drove it when the outside temp was 50: - 60: with the
bypass completely open; the temp. came up to 180: within 2 miles and
stayed there very nicely, but what if the temp. is over 100: again?!
> However, the factory used a partially restricted bypass and no
> skirt on
> later TRactor motors, with apparently good success.
>
I can see that this might work for tractors that are not likely to go
much over 15m/hr.
On Nov 26, 2011, at 12:22 PM, Randall wrote:
>> Thanks, TeriAnn, for that important web page. It proves and
>> raises my concern.
>>
>
> However, note that TeriAnn was talking about having the bypass fully
> blocked. I agree entirely in that case (although my personal
> experience has
> been that the results are not nearly as violent as she suggests,
> and I never
> cracked a head driving that way).
>
> However, the factory used a partially restricted bypass and no
> skirt on
> later TRactor motors, with apparently good success.
>
> And I will repeat my original point, which is that if you are having
> problems with the engine not coming up to temperature; then neither
> unblocking the bypass nor adding a skirt to the thermostat is going
> to help.
>
> The thermostat should be opening within just a few miles of
> driving, even in
> freezing weather. Back when I drove a TR to work in the snow, the
> radiator
> would be warm (indicating the thermostat was open) by the time I
> got home
> from work.
>
> -- Randall
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