Replacement gauge f...
 

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Replacement gauge for shock pump

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Has anyone ever replaced one?

I've got a few 'standard' shock pumps - back when every fork or shock shipped with one they all looked like they came from the same factory whether they were branded Rockshox, Fox or Marzocchi.  Usefully, I had a 'low pressure' Marzocchi one (up to 100psi) but my Shockwiz failed and I 'overpresssured' it so it's no longer reading correctly. Nor it seems is my 300psi Fox - my fork seemed to be bottoming out too often and it seems the 85-90 psi I was trying to get to now needs over 100psi on the gauge.

The gauge I've taken off has a 3/8 thread on the bottom and the case seems to be 41mm diameter (and the curve of the case mates with the curve on the bit it goes into).

Ideally I'd buy one for forks - probably 0-160 and one for rear shocks - which probably needs to go up to about 350 to be accurate at the higher pressures modern shocks seem to run at.

Not finding what I want on eBay.  Any suggestions?

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Posted : 29/11/2023 7:06 pm
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My measurement of the bottom bit is 3/8 inch.  Am I measuring wrong?  1/8 would be like 3mm ?
IMG_0911

because https://www.thermosensedirect.com/acatalog/gmd_40mm_steel_case_utility_pressure_gauge.html ?">these *look* about the same but says they're 1/8th


 
Posted : 29/11/2023 7:23 pm
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It might be BSP pipe sizing bit of reading for you  https://www.stevensonplumbing.co.uk/bspt.html


 
Posted : 29/11/2023 8:03 pm
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I have been told this before and I should remember it by now. Thanks.


 
Posted : 29/11/2023 10:57 pm
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I used:
one of these:
Part Number:B001A150A
Can Number/Des: 120066 GAUGE 40mm 1/8"BSPT 200PSI
https://www.duncanrogers.com/pneumatics/filters%2Dregulators%2Dlubricators%2Dand%2Dgauges/pressure%2Dgauges%2D%5F%5F%2Dvacuum%2Dgauges/pressure%5F%5Fvacuum%2Dgauges%2Dsteel%2Dcase%2Ddry/s0501255/120066
as the fitting a pipe fitting... pipes are sizes on the internal diameter, whereas tube are sized on the outer dia

Gauges tend to work best in the middle of their range.


 
Posted : 30/11/2023 2:13 pm