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Read measurements from a boley gauge - Hu-Friedy Boley Gauge Caliper Bg Hu Friedy Original

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Tank empty, gauge reads 1/4, tank full, gauge reads full, tank 1/4 full, gauge reads 1/2. Engine off, gauge reads below empty. Any ideas will be welcome.

The values differ in all types of cars. Older cars peg out at 90 ohms. Newer cars range between 0 and about 400 ohms. Dis-connect the connector at the sender. Ground the sender wire and the gage should read empty. un ground and it should read full. They use a ceramic resistor in the tank that usually go bad.

Jan 09, 2015 | Cars & Trucks


How to measure rain fall when your rain gauge overflows

Most rain gauges that you will make at home will only measure up to one inch of rain fall. The problem with this is that if you live in a place where you will get more than one inch of rain your measurement if taken incorrectly will be very skewed. If your rain gauge has been constructed correctly you should have a fail safe in place.

When you construct a rain gauge you should have a measuring tube inside of an over flow tube. The meausuring tube will hold about one inch of rain fall, but when more rain falls the inside tube will overflow into the outer tube. To measure the excess rain fall you will follow a few simple steps.

Start by reading the inner tube of the rain gauge and then carefully empty the tube. Make sure that you don't pour out the water that has overflowed into the outer tube.

Once all the water for the measuring tube has been emptied carefully pour the excess rain water into the measuring tube. To get the most accurate reading try your best to not spill any water out, you can pour the water over a bucket to make sure that if you do spill any out you will catch it and be able to measure accurately.

If there is a lot of overflow you might want to measure a little bit of overflow at a time to get an accurate read. As you measure, write down the measurements and when you finish add up the values to get the reading.

The readings are done in inches so you have a reading that is 1.00 and has an overflow that measures up to .50 then the total read out will 1.50 inches.

on Feb 02, 2014 | Garden

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Temperature sensor

simple solution try another sensor
measure the temp when the gauge reads hot and compare

Oct 16, 2013 | Ford Econoline Cars & Trucks

1 Answer

Random Fuel Gauge readings

The sending unit inside the fuel tank is at fault doing this to your gauge

It has a reostat that measures the amount of fuel in the tank. The float has a arm that rides along the reostat giving out the measurement. The arm is you can say waving up and down from a bad float that has no ablility to stay steadily bouyant no longer

May 31, 2010 | 2000 Oldsmobile Intrigue

1 Answer

Oil scencer showing low presure

if your oil pressure gauge is reading low, the sensor, instrument cluster gauge or the pump is bad. remove sensor and use an oil pressure test gauge. reading should be measured and verified against manufactures specs. if the pump is bad, damage to the engine will result.

Feb 25, 2010 | 1990 Dodge Dakota

1 Answer

Fuel gauge wraped around to full

Fuel gauge measures resistance of potentiometer coil in tank.
If you pull wire at tank unit, and short it, it should read full.
With wire off completely, should read totally empty.
If not, gauge bad.
If ok, then tank unit bad.

Feb 18, 2010 | 1998 Chevrolet Malibu

1 Answer


The jet should have the size stamped on it, you may need to clean it up and use a magnifier and good lighting to read it. Otherwise you may purchase needle feeler gauges to measure the jet.

Sep 16, 2009 | Jet Measuring Tools & Sensors

1 Answer

How to readR134A ac manifold gauges

The blue gauge is the low side. It should read between 30 to 60 PSI depending on temprature. The red is the high side, and should read roughly 3 times the outside temp. Good Luck

Jun 22, 2009 | Atd Tools R134a Economy Brass Manifold...

2 Answers

Daewoo racer 1995, petrol gauge

the easiest fix is to change the sending unit

Mar 09, 2009 | RTO Fuel Pump Carburetor Transmission...

2 Answers

Fuel Gauge Problem

Hi I hope it is ok for me to write on this forum in english! I have some problem with the fuel gauge on my Aprilia leonardo I have measured the resistance on the terminals of the fuelsensor and it does not look to good. Any of you all had any similar problem is it difficult to remove the sensor? ,normal it is not the resistor, it is a contact problem. did you check all connections ,,,

Nov 10, 2008 | 2006 Aprilia Leonardo 125

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