Tyre gauges

Submitted: Wednesday, Sep 05, 2007 at 09:07
ThreadID: 49339 Views:2344 Replies:6 FollowUps:5
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Just wondering what gauges people use and how accurate are they?

I have a bushranger gauge and figured it was ok (probably is), however I checked tyres at my local servo and got a reading, my gauge said another and my older type tyre gauge indicated another pressure also tossed in the fray I checked with my air compressor, yet different again. I could live with a couple of kpa change but I had anything up to 10 kpa out.

If I had a base to work with I could at least know how to read each gauge.

May as well use a stick and count method lol. How does everyone else fair.

Brian
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Reply By: ross - Wednesday, Sep 05, 2007 at 09:16

Wednesday, Sep 05, 2007 at 09:16
I have an older style pop up gauge and a $20 dial gauge and both have been reliable .
The pop up gauge is quite old maybe 25 years but I think it will outlast the dial gauge.

Gauges on compressors always seem to be out
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Reply By: Member - Doug T (Qld) - Wednesday, Sep 05, 2007 at 09:17

Wednesday, Sep 05, 2007 at 09:17
Brian
Get a good exensive gauge from your dealer or ARB , if ou have a cheap Chinese made gauge , throw it in the bin
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Follow Up By: Member - Doug T (Qld) - Wednesday, Sep 05, 2007 at 09:20

Wednesday, Sep 05, 2007 at 09:20
Seems I'm haveing problems with th chinese keyboard missing letters again after a system Restore, and yet it seems ok in Outlook Express, plays up when I type in EO
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Follow Up By: Member - Brian H (QLD) - Thursday, Sep 06, 2007 at 07:58

Thursday, Sep 06, 2007 at 07:58
Doug,

I figured my Bushranger brand would be a good brand. Of course i figured it was expensive :).

Brian
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Follow Up By: Member - Doug T (Qld) - Thursday, Sep 06, 2007 at 09:24

Thursday, Sep 06, 2007 at 09:24
Brian
Then trust it, not the servo gauges
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Reply By: Scoof - Wednesday, Sep 05, 2007 at 09:50

Wednesday, Sep 05, 2007 at 09:50
Brian have you looked at the digital gauges I find them reliable and easy to read.I have a john deer digital gauge and it would be at least 10 years old and still going strong.

Cheers Scoof
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Reply By: Sand Man (SA) - Wednesday, Sep 05, 2007 at 10:01

Wednesday, Sep 05, 2007 at 10:01
Brian,

Don't get paranoid over tyre gauges being accurate mate.

All you need is one that gives a consistent reading, whatever that may be and is easy to read and easy to use. Then use the 4psi rule to determine what pressure you should be running your tyres at.

You can spend big bucks on an imported gauge from Germany's finest manufacturer (no slight on Germany folks) and the first time it gets a bit of grit in the workings, it becomes a piece of junk.
The slider type pencil gauges are particularly susceptible to this.

I use a "Bushranger" brand digital tyre gauge I bought some time back at Kmart and it has proved reliable in its consistent reading.

There are no external moving parts. You just press the button to turn on, shove it on the tyre valve, wait for the beep to tell you it has inhaled enough air and tada!, you get a reading in 1/2 psi increments. (or kPa if you desire)

Cost was in the order of $15 or thereabouts so if the battery goes flat and I cannot replace it, I'll just replace the whole gauge.
Bill


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AnswerID: 260444

Follow Up By: Steve63 - Wednesday, Sep 05, 2007 at 12:20

Wednesday, Sep 05, 2007 at 12:20
I agree with sandman. It is most important you get the same reading. I had 3 gauges (one dial, 1 pencil and one cheap digital. All < 5 years old) and did a bit of a test. Same tyre, rotate though the gauges 3 times at 50psi and 20psi. The results were interesting. At 50psi two gauges were consistant to within 1/2 PSI, the other varied by up to 10psi. The two that were consistant were withiin 1psi of each other. At 20 psi they were all within 1psi on each test and all the gauges gave a result within 2psi of each other. So I ditched the one with the big variance.

Steve
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Reply By: Member - graeme W (WA) - Wednesday, Sep 05, 2007 at 11:53

Wednesday, Sep 05, 2007 at 11:53
We make our own.First buy a good quality liquid filled gauge ,from here you need a brass connector that you drill a hole in and bronse on a standard tyre valve [truck ones are a bit longer hacksaw it off level with the tube an cut off any rbber if tubless] then you add a length of poly air hose to the snap on fitting you need.You can buy push on fittings for the poly air hose.I use 2 one has the little valve left out so it is easy to let some air out if i dont use my staun deflaters that are are set at 14 psi just put your finger over the tyre valve to see pressure.The other one has the little valve scewed in just for checking pressures.You can use this one to reinflate just connect to the truck valve and you can see at a glance how much you have put in.
AnswerID: 260458

Reply By: Member - Brian H (QLD) - Thursday, Sep 06, 2007 at 08:09

Thursday, Sep 06, 2007 at 08:09
Thanks to all that replied.

I guess I was more curious if it was just my gauges or if others suffer the same fate.

No biggie for me trust me :) ....... Won't stop me going 4x4ing thats for sure.


Someone mentioned the 4psi rule can someone job my memory on that again please.

Brian
AnswerID: 260634

Follow Up By: Member - Tim - Thursday, Sep 06, 2007 at 16:00

Thursday, Sep 06, 2007 at 16:00
Hi Brian,

4psi rule is that the pressure should increase by 4psi from cold to hot. So measure the pressure when cold then run it long enough for the tyre to get up to maximum temp and then measure again. If pressure has gone up by less than 4psi then the pressure is too high, more than 4psi then it is too low. As long as you have a gauge that reads the same every time it doesn't matter what the pressure really is, you just set the tyres by that gauge to the pressure that worked with the 4psi rule.

Tim.
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