I used a fuel pressure isolator (I think it was an AutoMeter part). Provides a barrier between the fuel and your sensor/sender. Use water/antifreeze between the sender and the isolator.

 

Mike Wills

RV-4 N144MW

----- Original Message -----

From: Tracy Crook

To: Rotary motors in aircraft

Sent: Sunday, August 17, 2008 7:51 AM

Subject: [FlyRotary] Re: Fuel pressure

On Sun, Aug 10, 2008 at 8:37 PM, Al Gietzen <ALVentures@cox.net> wrote:

Tracy;

 

I'm glad you mentioned that.  I was about to conclude that the problem was incorrect data, not faulty regulator.  I could not be sure that the richer mixture I had connected with the first occurrence of higher fuel pressure was cause and effect – I possible had not leaned again after climbing to a higher altitude – then noticed the mixture and the higher pressure reading.  On the second occurrence I had not noted a mixture change.  Flew for an hour today (beautiful up and down the beachJ) and the fuel pressure was always where it should be.  The sensor offset was also what it should be. So until it happens again . .

 

Are you going to replace the VDO sender?

 

Al G

 

Looking for a possible replacement is on my To Do list but not near the top yet.  I inspect the sender for leaks whenever I'm under the cowl but never seen any hint of a problem so far.

 

Tracy