Re: Oil Pressure Gauge Glitch !!!!

Posted by txgrn on August 16, 2005 at 17:35:01 from (209.151.119.55):

In Reply to: Oil Pressure Gauge Glitch !!!! posted by Alberta Mike on August 16, 2005 at 17:25:48:

Most pressure gauge instruments are a brass tube that is bent into a semicircle. The needle is attached to it. As the pressure increases the semicircle attempts to straighten out. The idea in the design is for the brass to tolerate the stretching and return to the pre-stretched position when the pressure is relieved.

If you overpressure it, you could put a permenant straightening in the tube whereas it wouldn't return to zero and then the upper number's accuracy would be in question.

As far as blowing it up you'd have to put several hundred pounds on it probably beins you are talking about brass and solder.

I don't know where your memory point is hence the pressure above which it can't recover.

Just dunno.

Mark

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