Top critical review
3 people found this helpful
sturdy face) gauge
on July 23, 2014
This gauge has a problem that I presume most (if not all) fluid filled gauges have. Note the picture of the gauge and the air bubble at the top. If you happen to need to read the part of the scale where that bubble sits, the bubble may cause a problem.
Rotate the gauge to put the bubble someplace else? Not readily done if the gauge is part of a rack of multiple gauges, or is mounted to something not moveable.
Refill the gauge with fluid? Maybe. When I got the gauge it read 3" out of the box due to pressure INside the gauge from the fluid. With the gauge upside down and the plug oriented 'flat', I released the pressure on the fluid by removing the plug. A very small amount of oil came out, the gauge then read 'zero' as it should...but I still got the bubble showing. I don't know you could put more fluid IN the guage and not end up with a pressure reading (uncalibrated gauge at that point).
I use a 4-gauge set to sync carbs on four cylinder motorcycles. */- .5" is what I sync the carbs to. I had hoped a liquid-filled gauge would be an improvement over the non-liquid filled gauges I have. The vacuum usually present in this situation would put the needle right at the top of the gauge and hard to read.
This gauge doesn't fit my intended application.
That doesn't mean there is something WRONG with the gauge. As long as the presence of the bubble doesn't cause a refraction problem while reading the gauge in a different application, this is a decent, well-built (nice metal case, sturdy face) gauge.