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test for a VDO oil PSI sender/guage

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egp8111

Joined: 25 Mar 2010
Posts: 49

Posted: Sun Oct 23, 2011 5:00 pm Post subject: test for a VDO oil PSI sender/guage

After getting  worrying indications on my 912 oil psi gauge I checked it out with a mechanical gauge.  All was normal.  So I obviously have a problem with my VDO guage or sender unit.  Is there any way of checking the sending unit or gauge to see which one has the problem ?  I checked the power and ground connections on both units but didn't turn up any smoking guns.



thanks,



EG

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rlborger(at)mac.com
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Posted: Sun Oct 23, 2011 5:21 pm Post subject: test for a VDO oil PSI sender/guage

EG,



Is the sender directly attached to the engine?  If it is, then the sender is bad.  The engine vibrations kill the senders in pretty short order.  You will have to replace the sender.  When you do, I recommend moving off the engine and mounting it on the firewall or some other stable surface.  Use a flexible hose (with AN connections) to go from the block to the sender.  Be sure to bleed the hose or fill it with oil in some way prior to connecting to the new sender or you will not get accurate pressure readings.



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Bob Borger

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3705 Lynchburg Dr.

Corinth, TX  76208-5331

Cel: 817-992-1117

rlborger(at)mac.com



On Oct 23, 2011, at 8:00 PM, egp8111 wrote:



 	  Quote: 	
		   

 

 After getting  worrying indications on my 912 oil psi gauge I checked it out with a mechanical gauge.  All was normal.  So I obviously have a problem with my VDO guage or sender unit.  Is there any way of checking the sending unit or gauge to see which one has the problem ?  I checked the power and ground connections on both units but didn't turn up any smoking guns.

 

 thanks,

 

 EG

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kitfoxsport(at)verizon.ne
Guest

Posted: Mon Oct 24, 2011 2:28 pm Post subject: test for a VDO oil PSI sender/guage

Sending units avialable from JEG'S Perormance Racing located in Ohio. They even explain how to get your correct Ohm- Volt or whatever on the sight. It is just above the threads. It was about $25 bucks a couple months ago. Original VDO packaging and VDO equipment.

From: egp8111 <egp8111(at)aol.com>

To: rotaxengines-list(at)matronics.com

Sent: Sunday, October 23, 2011 6:00 PM

Subject: RotaxEngines-List: test for a VDO oil PSI sender/guage

--> RotaxEngines-List message posted by: "egp8111" <egp8111(at)aol.com (egp8111(at)aol.com)>

After getting  worrying indications on my 912 oil psi gauge I checked it out with a mechanical  gauge.  All was normal.  So I obviously have a problem with my VDO guage or sender unit.  Is there any way of checking the sending unit or gauge to see which one has the problem ?  I checked the power and ground connections on both units but didn't turn up any smoking guns.

thanks,

EG

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