Posted by Jerome Weinraub (zayde@…>)
I recently saw a graph for Yanmar 3GM30F fuel consumption. Their data was 0.8 gal/hr @ 2800 rpm,which is what I get on mine. If you have a Yan 3 GM 30 this may help. BTW,@ 3400 rpm the consumption was about 1.5 gal/hr
----- Original Message -----
From: Lorman, Alvin J.
To: freedomyachts2003@yahoogroups.com
Sent: Monday, August 07, 2006 10:32 AM
Subject: RE: [freedomyachts2003] Fuel gauge question?
Don:
Welcome to the Freedom lovers list.
I have a 1987 F30 as well. I’m not entirely sure of what you mean when you say that the fuel gauge is starting to show some red. The gauge, if it is the same as mine, is a mechanical gauge that is bolted onto the top of the tank. They are, at best, casually accurate. Under the gauge, there is a vertical metal fitting which holds a float. As the fuel level rises and falls, the float rises and falls, which cause a spring to move the visible gauge. To the best of my knowledge, they are not calibrated, so any odd shaped tank does not give a true reading.
Depending on how much you use your engine, there are three approaches. The tank, if I recall correctly, is 20 gallons. First, simply unscrew the gauge and take the whole assembly to a chandlery and buy a replacement. Second, it you use the engine a lot, fill the tank completely, and then keep track of how long the engine is running. The engine uses about 1/2 gallon an hour. (I recently helped deliver a boat from Newport, RI to Annapolis, MD, mostly under power, and this is the method the professional delivery captain used.) If you just use the engine to get into and out of your slip and such, you can simply put a gallon of fuel in every time or every other time you use the boat. I never let my gauge get below 1/4 full, but I fill it on the time used rather than what the gauge says.
Al Lorman
F30 Ab Initio
-----Original Message-----From: freedomyachts2003@yahoogroups.com [mailto:freedomyachts2003@yahoogroups.com] On Behalf Of kollegewidgwockSent: Monday, August 07, 2006 9:06 AMTo: freedomyachts2003@yahoogroups.comSubject: [freedomyachts2003] Fuel gauge question?
I’m having trouble reading the fuel gauge on my 1987 Freedom 30. I would appreciate any suggestions from the group regarding some (simple?) way to determine how much diesel fuel is left in the tank.The gauge has a flange which is secured to the top of the tank with a phillips head screw on top of a small cyclindrical housing and then four hex head bolts around the flange and then a slotted screw next to the phillips which completes the circle.On the clear plastic lens which is attached to the flange by two phillips more head screws is a nut which looks to be situated between “full” and “empty” indicators. The face of the dial is beginning to show some red where it once showed “full”.Can this gauge be removed in order to insert a dipstick? If so, how?If this question seems too confusing or complicated for the group, please send a private email to dlynch@unity.eduThis is our first summer sailing “Solitude” out of Blue Hill, Maine and we are really enjoying it but I still have alot to learn about her systems beyond her sails.Thanks in advance for your kind response.DonDr. Donald LynchAssociate Professor of PsychologyUnity College-in-Mainedlynch@unity.edu
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