Forget the fuel pressure gauge. Fuel flow is what you want, if the fuel is flowing then you must have fuel pressure. A good fuel flow instrument will tell you your fuel consumption from the last fill up (providing you reset the counter), what your current consumption rate is, and with these 2 bits of info and knowing how much is in the tank to start with you can calculate how far you will get on what's left in the tank.
Fuel pressure should only need to be checked at service intervals with a workshop instrument, and even that's questionable. I mean what is the correct pressure, OK the fuel filter gets a little blocked and the pressure rises, but how does altitude affect these readings. While with a fuel flow instrument, once we've established the normal consumption rates, if the consumption goes down then we may have a blocked fuel filter (or we may have finally tuned the engine correctly :-) If the fuel consumption rises then the engine may be out of tune, the prop may be damaged or covered in bugs, the aircraft may be dirty (covered in bugs and grass clippings in my case) or you may be flying unbalanced. That's my 2 cents worth (or worthless). Barry Kruyssen Cairns, Australia RAA 19-3873 [email protected] http://www.users.bigpond.com/kr2/kr2.htm ----- Original Message ----- From: Glasseyegav To: KR builders and pilots Sent: Thursday, January 27, 2005 4:29 PM Subject: KR> Fuel gauge I'm thinking fuel pressure gauges, and all I can find locally is the mechanical type!!!. I was after an electric one with a pressure sender to keep any potential leaks outside the cockpit. What do most use ? is the mechanical type with a capillary tube acceptable ?? Gavin _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to [email protected] please see other KRnet info at http://www.krnet.org/info.html
