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I have a question that I am sure one of you guys have the answer to. I am restoring a 1946C(it sat in a farmers garage for about 20 years). The fuel pump that it had on it was for an 0200 engine and the inlet and outlet were reversed from the C75-12 regular fuel pump. While that fuel pump was on it I could fill the header tank and it would remain in the header tank. A friend of mine swapped the pump for an AC 9867N pump. After installing that pump, fuel would not stay in the header tank, but drained back into the mains. Possibly a bad diaphragm??? The other question is that the 9847 is rated at 3.5 to 4.5 lbs of pressure. The pump (according to Aero Accessories) is supposed to be AF40695 which is rated at 5 to 7 lbs. Is the difference in pressure a critical issue?? docruss --- Ercoupe Technical Discussion <[email protected]> wrote: > ----[Please read http://ercoupers.com/disclaimer.htm > before following any advice in this forum.]---- > > > Message list: > > 1. [COUPERS-TECH] Advice needed: Replacement > ignition lead parts or new wires? > 2. [COUPERS-TECH] Nose Tank > 3. Re: [COUPERS-TECH] Nose Tank > 4. FW: WRB Re: [COUPERS-TECH] Nose Tank > 5. Re: [COUPERS-TECH] Nose Tank > 6. Re: [COUPERS-TECH] Wing Root Tank Nut Plates - > Part number or source > > Messages: > > From: Vince P <[EMAIL PROTECTED]> > To: Ercoupe Technical Discussion > <[email protected]> > Reply-To: Vince P <[EMAIL PROTECTED]> > Subject: [COUPERS-TECH] Advice needed: Replacement > ignition lead parts or new wires? > > Hello Friends, > I have a problem and I hope that you can help me. > I am finishing up the Annual on my '46 415-D. > I have the short "lawnmower" sparkplugs on top > that > live inside the little shielding cans. > Although the upper wires themselves test good > continuity-wise, my wire ends at the plugs are > breaking off and making poor contact with the > cigarette springs. The cigarettes there are rigid > tubes and unlike other cigarettes that I have seen. > I need to either replace the entire good upper > wire > set or strip back the wires at the plug ends to > re-establish contact with the springs. Stripping > back > the wire ends to extend their reach through the > cigarettes will require the replacement of the old > crimped on connectors that fasten with a nut to the > plug cans. The crimps limit the amount of usable > wire > that I can expose with stripping. > Any advice: Part numbers and source of new crimps > to > save the old wires, new correct wire source, etc. > would be VERY much appreciated. I am an A+P and > would > prefer fabricating something new and airworthy from > bulk parts rather than paying for someone else's > labor. > Since the upper connectors look so different from > other ones I have seen, I am concerned about finding > the right ones the first time. > > Thanks in advance! > -Vince Pujalte > Bisbee, AZ > > > > www.greatcom.org/laws/ > > > > > > > > > > > > ---------------------------- > From: "Steve Schlager" <[EMAIL PROTECTED]> > To: <[email protected]> > Reply-To: "Steve Schlager" <[EMAIL PROTECTED]> > Subject: [COUPERS-TECH] Nose Tank > > My nose tank seems to be running at half full. > This keeps me from making any trips very far away > from home base. > I thought it was supposed to always be full. Could > something be wrong with my fuel pump? > Steve Schlager > N93556 > > ---------------------------- > From: "Hbeil" <[EMAIL PROTECTED]> > To: "Steve Schlager" > <[EMAIL PROTECTED]>,<[email protected]> > Reply-To: "Hbeil" <[EMAIL PROTECTED]> > Subject: Re: [COUPERS-TECH] Nose Tank > > How do you tell that the tank is half full? > > Hartmut > ----- Original Message ----- > From: Steve Schlager > To: [email protected] > Sent: Sunday, March 06, 2005 4:58 PM > Subject: [COUPERS-TECH] Nose Tank > > > ----[Please read http://ercoupers.com/disclaimer.htm > before following any advice in this forum.]---- > > > My nose tank seems to be running at half full. > This keeps me from making any trips very far away > from home base. > I thought it was supposed to always be full. Could > something be wrong with my fuel pump? > Steve Schlager > N93556 > ========================================================================== ==== > To leave this forum go to: > http://ercoupers.com/lists.htm > Search the archives on > http://escribe.com/aviation/coupers-tech/ > > > > > > ---------------------------- > From: "Ed Burkhead" <[EMAIL PROTECTED]> > To: "Coupe-Tech" <[email protected]> > Reply-To: "Ed Burkhead" <[EMAIL PROTECTED]> > Subject: FW: WRB Re: [COUPERS-TECH] Nose Tank > > > > Ed Burkhead > http://edburkhead.com <http://edburkhead.com> > ed -at- edburkheadQQQ.com (change -at- and > remove QQQ) > > > -----Original Message----- > From: William R. Bayne > [mailto:[EMAIL PROTECTED] > Sent: Sunday, March 06, 2005 6:39 PM > To: Ed Burkhead > Subject: WRB Re: [COUPERS-TECH] Nose Tank > > > > RLYTECH (WRB via Ed Burkhead's computer-I can't post > directly) > Please send responses directly to the list or to me, > Bill Bayne @ > <[EMAIL PROTECTED]> > > Hi Steve, > > More likely your cork is saturated (indicating less > fuel than is > present) or the inlet of your fuselage tank back to > the wing tank(s) is > too low (unlikely, but things can and do break). > > Crud can build up if your ADs are not being done > (new filter, etc. > every year, supposedly), or if some wizard has put > your restrictor > fitting on the inlet side of the pump (wrong). In > that location the > orifice can be reduced by debris in the fuel that > otherwise would be > trapped by the filter in the pump. > > It is possible for a fuel pump to produce > insufficient pressure to keep > the nose tank full, but most probably get replaced > because of oil > (really messy) or fuel leaks (really dangerous) > before original pumping > capacity deteriorates to that point. > > I suggest you get containers that will hold a total > of six gallons, > take a lap "around the patch" (to get the level to > "normal" in flight > and replace any lost since you last flew), and > measure how much fuel > was in your fuselage tank by draining it from the > gascolator inlet > line. If you get near five or six gallons (the two > sizes possible), > you know with reasonable certainty that the problem > is your cork. > > Most coupes' fuselage tank gauge (even when new) > will visually appear > "empty" with around two gallons remaining. I > calibrated my gauge > accurately and monitored both progress along my > course === message truncated === Dr. Russell Whetton 859 Washington Blvd. Ogden, Utah 84404 801-393-8880 801-393-8881 fax __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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