jw1977

I'm trying to decide between the Longacre Deluxe Tire gauge and their liquid filled gauge. They're both around $45. Any opinions, I don't know anything about liquid filled gauges. Thanks.

BostonDuce

Liquid filled gauges are partially filled w/glycerin. It dampens the movement of the needle so you can get a better read when the input pressure is oscillating up and down.

If you are bleeding air pressure downward to a target PSI reading the liquid will prevent the indicator needle from bouncing down when you hit the bleed button.

Not really better or more accurate gauge-just a dampened movement. Most common in process engineering applications where there are continuous pressure pulses that have to be controlled in order to read the gauge.

BD

tcouture

I have a longacre liquid filled one and I am very satisfied.

I went with liquid filled because if you carry your gauge everywhere and it gets bumped quite a bit, the dampened liquid filled environment makes the gauge keep its calibration better (at least that is what I heard, and it does make some sense).

HTH,

T.

jw1977

I guess I'll go liquid, thanks.

IMGT3

not a de-scenting comment just some personal experience. read this clip from Longacre's site

Liquid filled gauges have many advantages. But they can change readings by as much as 2-3 psi if the temperature changes...

All pressure gauges - liquid filled and regular - need to be vented to the outside to read accurately. If not vented, as the surrounding temperature changes, they will build up pressure inside and affect the accuracy - by as much as 2-3 psi!

But if a liquid filled gauge is vented it will leak on your hands and in your tool box. Some manufacturers aren't aware of this and don't vent the gauge. You then have to deal with the variation in accuracy.

Now from Longacre comes the simple answer to this problem. We have installed a specially designed pressure equalizer button on the top of the gauge. Before you use the gauge just push this button. Instantly any temperature-caused pressure difference will be eliminated and you will be guaranteed the most accurate readings possible.

I use the deluxe as it saves me a step and has proven to be reliable.

Chuck

tcouture

Good point.

Mine has a screw on valve (must be an older model), I just use that to equalize the pressure every time I use it. It takes 5 secs tops.

Longacre know what they are doing,

T.

IMGT3

It's a great product!

mdrums

I use the digital gauge...works great. I have these $45 digital gauge and there $125 digital gauge...both very accurtate. I have a Longacre analog gauge and it read 3psi high....not a good gauge.

sclemmons

I use a $10 pencil-clip gauge from Schrader that I got off the Snap-On truck the last time I saw it. Is that so wrong?

mdrums

Guarantee you it's no where near accurate.

IMGT3

One of the primary reasons we carry a company like Longacre is that they stand behind their product. If you're getting a false read, and it's not due to temperature changes or other barometric pressure related issues (purging), the contact their customer service department at the link below. They do have a one-year limited warranty for the analog product. I hope this is of some help!

Best regards

Chuck

http://www.longacreracing.com/instru....asp?INSTID=27

Eric - Plug Guy

Interesting side note. A few years ago I received gifts from a few dealers we work with, and they were Porsche pressure gauges, nice ones with bleeders, hose attached, in a nice glossy chrome case like eyeglasses.

They are the LEAST accurate of any gauges I have. I have some Accutire and other gauges that seem to be spot on. But the readings I get on the Porsche gauges don't give me any confidence. That, or all my other gauges are crap.

Anyone else try the Porsche gauge?

cab&coupe

Group buy?

IMGT3

Eric

Ironic that you should say that, i was given a "P" guage for a birthday gift by my son... unfortunately i had the same experience....

Chuck

IMGT3

See PM, thanks! CM