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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions
Vacuum readings

Garage

10-19-2017, 11:17 AM	#1
Gilles Registered User Join Date: Dec 2009 Location: Orange County, CA Posts: 1,848	Vacuum readings Ok, somehow I managed to loose the instructions on the digital tool to measure the vacuum on my engine and must ask this question... What is the proper way to use the tool, leaving the second port open: Or by covering the second port: Now, assuming that mi engine is below the 5" of H2O, does this means that my rings are too worn, or it could be that I have a small vacuum leak? Thank you in advance for your comments!

10-19-2017, 01:25 PM	#2
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,277	The second port should be left open. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein

10-19-2017, 01:54 PM	#3
boxfix Registered User Join Date: Sep 2017 Location: MALIBU Posts: 166	that is a pretty trick digital gauge. I have a $20 analog gauge.....is it accurate enough? How much is the high tech one?? __________________ 2003Boxster 1973 Carreras RS tribute 2000 Saab Aero wagon stick 1990 Chevrolet pu pre runner

10-19-2017, 02:54 PM	#4
oldskool73 Registered User Join Date: May 2015 Location: Sydney, Australia Posts: 335	Those ones are resold everywhere, about $35+ from ebay https://www.ebay.com/itm/2017-LCD-Digital-Manometer-Differential-Air-Pressure-Meter-Gauge-2Psi-13-79Kpa/112313519245 ...or a little less all over the chinese sites... https://www.aliexpress.com/wholesale?catId=15370801&initiative_id=AS_20171019145012&SearchText=digital+manometer

Old

10-19-2017, 03:05 PM

#5

Gilles

Registered User

Join Date: Dec 2009

Location: Orange County, CA

Posts: 1,848

Quote:

Originally Posted by JFP in PA

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The second port should be left open.

Thank you! Now, I know how to use this gizmo

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