 Mechanical Oil Pressure Gauge, - does it need to be bled? |
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| Kansas 914 |
 Aug 26 2014, 08:52 AM
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#1
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Advanced Member  Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains 
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I have a VDO oil pressure gauge in the center console gauge cluster. It is a mechanical gauge - oil line from the sending unit location on the top of the engine to the back of the gauge. I noticed this weekend the line near the gauge is full of air and only a little bit of oil in the line. Should I "bleed" the line somehow. If so how is that done?
Can I just open the line at the gauge and keep it higher than the sending unit area so the air will rise? Thanks in advance! |
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| 76-914 |
Aug 26 2014, 09:06 AM
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,502 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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Air is OK. Doesn't change the indicated pressure reading.
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| 00r101 |
Aug 26 2014, 09:21 AM
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#3
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Newbie Group: Members Posts: 17 Joined: 24-May 12 From: United States Member No.: 14,476 Region Association: MidAtlantic Region |
QUOTE(76-914 @ Aug 26 2014, 11:06 AM)  Air is OK. Doesn't change the indicated pressure reading. Ahhh, My high school physics says that a gas is compressible but a liquid is not as much. So air in the line will be compressed a bit as oil pressure changes. But whether it will make a huge diff in the oil pressure reading I do not know. Air in the line will start off at 14.7 psi so how much it will compress at say 60 psi i might be minimal |
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Posts in this topic
Kansas 914 Mechanical Oil Pressure Gauge Aug 26 2014, 08:52 AM
SLITS
Air is OK. Doesn't change the indicated pres... Aug 26 2014, 02:12 PM
mikesmith
Air is OK. Doesn't change the indicated pres... Aug 28 2014, 08:56 PM mgp4591
[quote name='00r101' post='2078434' date='Aug 26 ... Aug 29 2014, 12:13 AM barefoot
[quote name='00r101' post='2078434' date='Aug 26 ... Aug 29 2014, 06:45 AM 76-914 What weighs more? A pound of feathers or a pound o... Aug 26 2014, 02:09 PM stugray I even use a accusump pressure gauge as my mech o... Aug 26 2014, 06:53 PM hblyle All physics aside, I would replace that plastic li... Aug 29 2014, 12:31 AM Mike Bellis Aside from all the physics BS, I bleed mine so the... Aug 29 2014, 08:48 AM stugray
Aside from all the physics BS, I bleed mine so th... Aug 29 2014, 10:52 AM |
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