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leak down tester : one gauge vs two #4652755
02/01/18 12:32 AM
02/01/18 12:32 AM
Joined: Dec 2012
Posts: 685
Washington for now
WhyMe Online content OP
WhyMe  Online Content OP

Joined: Dec 2012
Posts: 685
Washington for now
i have a leak down tester with a single gauge that i bought 25 years or so ago. i have only used it once and that was when i first got it. i have been learning and doing more engine stuff lately and am thinking of playing with it again

i noticed that the new ones seem to be mostly dual gauge. So is there a difference in accuracy between the two types?

Last edited by WhyMe; 02/01/18 12:33 AM.
Re: leak down tester : one gauge vs two [Re: WhyMe] #4652818
02/01/18 06:41 AM
02/01/18 06:41 AM
Joined: Jan 2017
Posts: 287
Iowa
Iowegian Offline
Iowegian  Offline

Joined: Jan 2017
Posts: 287
Iowa
Article here that talks a little about 1 vs 2 gauge testers.

http://www.hotrod.com/articles/cylinder-leakdown-tester/

Here is a nice article on testing 4 different leakdown testers.
https://www.google.com/amp/www.hotrod.com/articles/hrdp-1203-budget-leakdown-testers-tested/amp/

I bought this one from Amazon.
https://www.amazon.com/OTC-5609-Cylinder-Leakage-Tester/dp/B0030EVL60


2011 Equinox, 2.4l
2009 Sienna, 3.5l
Re: leak down tester : one gauge vs two [Re: WhyMe] #4652824
02/01/18 06:59 AM
02/01/18 06:59 AM
Joined: Dec 2002
Posts: 42,511
'Stralia
Shannow Offline
Shannow  Offline

Joined: Dec 2002
Posts: 42,511
'Stralia
always need two guages...the first one is your air supply regulator

Re: leak down tester : one gauge vs two [Re: WhyMe] #4652843
02/01/18 07:52 AM
02/01/18 07:52 AM
Joined: Nov 2006
Posts: 21,225
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,225
MA, Mittelfranken.de
Single gauges were the norm back in the day and worked fine but you had to set the compressor regulator to the desired PSI which is basically the "first gauge" on most units today.
2 Gauges are more convenient but the results are the same. No reason to replace it, accuracy is the same.


ASE L1, Master. Deutsch Meisterbrief.
Re: leak down tester : one gauge vs two [Re: Trav] #4653027
02/01/18 11:41 AM
02/01/18 11:41 AM
Joined: Dec 2012
Posts: 685
Washington for now
WhyMe Online content OP
WhyMe  Online Content OP

Joined: Dec 2012
Posts: 685
Washington for now
Originally Posted By: Trav
Single gauges were the norm back in the day and worked fine but you had to set the compressor regulator to the desired PSI which is basically the "first gauge" on most units today.
2 Gauges are more convenient but the results are the same. No reason to replace it, accuracy is the same.


Cool. thanks for the info

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