Robert,
       I wonder if perhaps this is just the sign of a
tired engine with 75k on the last rebuild?
Compression is about 120-130 on each cylinder.
In all other ways it works well but the low and high
speed fan run an a regular basis in warm weather
cycling the ac on and off.   What is the condition of
your engine and do you think a rebuild would put my ac
on and the fan off?   Anyone else have this kind of
poor performance?   regard gary
--- Robert Lilley <RClilleyjr@cox.net> wrote:

> <<<Maybe but I am guessing that it just gets too hot
>
> above 95 to keep the engine cool enough to have the
>
> engine run and run the ac at the same time.   Even
>
> with the ac off that high speed fan runs when the
>
> temperature gets above 95.>>>
>
> I would suspect that you might have a problem with
> your cooling system and
> or engine, not related to the A/C if the high speed
> fan comes on above 95.
> Because I live in Mesa, AZ and even when the temps
> go above 110 with the A/C
> on full, I have yet had my high speed fan come on
> while driving in stop and
> go traffic.  The temp needle goes about a needles
> width above the LED.  I do
> not recall the second speed has kicked in either,
> just the low speed.
>
>
>
> You might have you're fan resister that went bad and
> was wired to bypass the
> second speed position.
>
>
>
>
>
> What I am planning to do the A/C is:
>
>
>
> Replace the condenser with a parallel flow unit
> about the same size as
> stock, maybe a bit bigger that fits in the stock
> location to improve
> efficiency.
>
> Replace the expansion valve
>
> Replace the seals
>
> Replace the receiver/dryer
>
> Replace the stock three blade fan with a 7 bladed
> fan (trimmed a few MM to
> fit in the stock location) This will get a bit more
> air flowing over the
> condenser.
>
> Possibly replace the evaporator with a more
> efficient unit (If I can find a
> source)
>
>
>
>
>
> Robert
>
>

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