And if you can’t pull a vacuum you have an air leak someplace! I needed two gauges because the vacuum was on both sides of the Racor, fuel fill hose pieces were dropping into the tank, getting sucked onto the intake tube, and falling off when I went to change the “clogged” filter. It drove me NUTS figuring THAT out! My vacuum gauge is down by the filter and my pressure gauge is in the cockpit. It has a red light that comes on below 1 PSI fuel pressure too.
Joe Della Barba Coquina C&C 35 MK I www.dellabarba.com From: David Knecht [mailto:davidakne...@gmail.com] Sent: Wednesday, October 07, 2020 12:35 PM To: CnC CnC discussion list <cnc-list@cnc-list.com> Subject: [EXTERNAL] Stus-List Re: Universal diesel I want to second Joe's thought. I have not had fuel problems, but just installed a vacuum gauge (from Joe and Josh’s previous recommendations) a few weeks ago and it was so simple there is no reason not to do it. I added the more expensive drag pointer type gauge (https://www.sbmar.com/product/vacuum-gauge-rear-low-profile-mount/<https://protect2.fireeye.com/v1/url?k=7a9c6111-260a57f2-7a9c4866-0cc47adc5fec-1c0a48d5fea5ee6b&q=1&e=ff57b385-b4e7-431b-b238-a43b116ad878&u=https%3A%2F%2Fwww.sbmar.com%2Fproduct%2Fvacuum-gauge-rear-low-profile-mount%2F>) so I did not have to be looking at the gauge while the engine is running (in case it isn’t) but still under $100 for the gauge. I simply cut the line between the Racor and the fuel pump, removed a few inches of tubing and plugged the line into the barbed fittings of the gauge. I got no reading when I ran the engine, but then to test, I gradually closed the shut off lever and as it got near closed, the vacuum started to register. That made me happy indicating my several years old Racor primary was fine. One less thing to worry about and diagnose in an emergency. Should have done it a long time ago. Dave S/V Aries 1990 C&C 34+ New London, CT [cid:image001.png@01D69CA7.2B8E0ED0] On Oct 7, 2020, at 12:16 PM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I am probably getting repetitive, but please BUY SOME GAUGES! I currently have a fuel pressure gauge with the sensor on the output side of the pump and a vacuum gauge on the output side of the filter before the pump. I temporarily had a second vacuum gauge on the input side of the filter too. It took all three gauges to track down a couple oddball fuel feed issues I had been having for years that NEVER could have solved otherwise. I can give some links if you are curious. A whole box of gauges is cheaper than one tow home or one ruined trip. Joe Della Barba Coquina C&C 35 MK I www.dellabarba.com<https://protect2.fireeye.com/v1/url?k=93a2b995-cf348f76-93a290e2-0cc47adc5fec-ba52b3e0e1ece963&q=1&e=ff57b385-b4e7-431b-b238-a43b116ad878&u=http%3A%2F%2Fwww.dellabarba.com%2F> _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray<https://protect2.fireeye.com/v1/url?k=a64a1791-fadc2172-a64a3ee6-0cc47adc5fec-d391205f66e2bdca&q=1&e=ff57b385-b4e7-431b-b238-a43b116ad878&u=https%3A%2F%2Fwww.paypal.me%2Fstumurray>
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