What is the provenance of your temp sending unit on the engine?
It could be the wrong one.
erich
---- Andy Walker via Tigers <tigers@autox.team.net> wrote:
> Hey, guys:
>
>
>
> I finally had the Tiger ready to start today and, with the help of an expert
> racing mechanic buddy of mine, we fired it off. It ran great right off the
> bat!!!! Actually, we had everything statically set pretty close to where it
> needed to be. Once we had run the motor long enough to break in the cam, we
> set the timing and tuned the carb until it ran smoothly. We had just a
> little mid-range flutter in the carb under no load but, the longer it ran,
> the more that seemed to clear up. I'll just have to see how that reacts in
> the weeks to come.
>
>
>
> All is not perfect, however; we still have a couple of problems to work out.
> The first is the fact that my factory original tach reads 300 to 400 rpm
> higher all through the scale than it should. We ended up having to use the
> tach on my engine analyzer to set the idle. Do any of you guys know if the
> tach can be adjusted from the outside of the unit while it is in operation,
> or am I just going to have to send it to someone like Nisonger to get it
> calibrated?
>
>
>
> I've also got a problem with my temp gauge as it was reading hotter than it
> should. Actually, it has always read hotter than the motor actually is.
> While we were running it today, I had my shop fan blowing into the radiator
> to help cool it off. I was also using my infa-red thermometer to check the
> temps at various points in the engine compartment. The hottest reading we
> got was on the thermostat housing itself with 201 degrees. The radiator and
> upper hose read anywhere from 165 to 174 degrees. The problem is that while
> all this was going on, the temp gauge on the dash was reading 240
> degrees!!!! As when I had the old 289 in the car, it never spit a drop of
> water, so I really don't think that the temp reading I'm seeing on the dash
> is correct. I've considered that it could be the instrument voltage
> stabilizer, but my fuel gauge appears to read correctly. Does anyone have
> any ideas what it could be?
>
>
>
> Thanks for any advice,
>
> Andy Walker
>
> Edmond, OK
>
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