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Re: 12v Tyre Inflator? [Re: Burgundymog] #669217
26/10/20 07:48 PM
26/10/20 07:48 PM
Joined: Aug 2020
Posts: 22
South Oxfordshire
M
Mr Mogoo Offline
New to Talk Morgan
Mr Mogoo  Offline
New to Talk Morgan
M

Joined: Aug 2020
Posts: 22
South Oxfordshire
Originally Posted by Burgundymog
Originally Posted by Mr Mogoo
Originally Posted by Ian Wegg
Interesting to read the comments. I have had the Halfords electric inflator for a few years, it works well. I also have a pocket type pressure gauge (the sort that looks like a pen). It's very old, I think it belonged to my grandfather! I've noticed there is about a 10% difference in the reading from my gauge and the digital display on the pump but I'll admit I've always sided with the pump. I've now ordered a RaceX gauge as recommended here to see how its readings compare.



Well done Ian… I followed you and purchased the Race X gauge and then settled for a Halfords rapid digital inflator at £40. Both have proved to be fast and accurate. What a difference it makes to have correctly pressurised tyres and not be shuffling around for 20p coins only to find the local garage inflator out of order smile


20p sounds like a bargain the BP chain charge an outrageous £1 !!!


The local garage machine only accepts 20p coins - and lots of them! The first coin started the compressor and then you had to guess how many it would take to do a circuit of the car... smile

Re: 12v Tyre Inflator? [Re: GaB] #669491
28/10/20 10:58 AM
28/10/20 10:58 AM
Joined: Dec 2014
Posts: 187
P
PHZI Offline
L - Learner Plates On
PHZI  Offline
L - Learner Plates On
P

Joined: Dec 2014
Posts: 187
As you will see via the link, difficult to get hold of. I bought one circa 20 yrs ago and still going strong. Certainly the best and most durable, but a tad large if you wanted to fit under the seat.

https://www.amazon.com/gp/product/B001TGQ300

Re: 12v Tyre Inflator? [Re: GaB] #671472
07/11/20 05:42 PM
07/11/20 05:42 PM
Joined: Mar 2010
Posts: 2,768
Petersfield, Hampshire
Ian Wegg Offline
Talk Morgan Expert
Ian Wegg  Offline
Talk Morgan Expert

Joined: Mar 2010
Posts: 2,768
Petersfield, Hampshire
The coin-operated tyre inflator has to be the most irritating device ever put on a garage forecourt. You get your car aligned centrally with all the dust caps off and the handgun placed by the furthest tyre, then you put in your 50p and race round the wheels like a one-man F1 pit crew. Either the tube gets caught under a wheel or you've misjudged the parking and the last tyre can't be reached .... So you end up having to insert another 50p to complete the final tyre and 9 minutes 30 seconds of compressed air goes unused. ... And then you find you've kicked one of the dust caps and it can't be found anywhere. banghead

Back to the subject. Following the discussion about the accuracy of pump gauges, I did an experiment this morning. I checked a tyre with my brand new RaceX gauge; my (not so) trusty old pocket gauge; the digital display on the electric pump; and finally rechecked with the RaceX (to see how much pressure was lost by the previous checks). The results, to the nearest observable mark, were:

RaceX: 19; Pocket gauge: 21; Digital: 17.5; RaceX (again): 19. That's a 20% difference between the lowest and the highest.


[Linked Image] [Linked Image] [Linked Image] [Linked Image]


To be fair, when I set the electric pump to inflate the tyre to 24.0, the RaceX gauge also read 24 so I'm happy that the pump is accurate enough for inflating. I shall recheck again after my next run out. In the meantime, I think I'll consign my grandfather's old pocket gauge to my box of mementoes.

Re: 12v Tyre Inflator? [Re: GaB] #671476
07/11/20 06:11 PM
07/11/20 06:11 PM
Joined: Nov 2015
Posts: 3,198
Yorkshire
CooperMan Offline
Talk Morgan Addict
CooperMan  Offline
Talk Morgan Addict

Joined: Nov 2015
Posts: 3,198
Yorkshire
The problem with the old style pocket gauges is that they rely on friction & sometimes suffer from stiction


Jon M
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