---------------------------------------------------------- Allegro-List Digest Archive --- Total Messages Posted Mon 04/04/16: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:00 AM - Re: Pitot Location (Hugh McKay) 2. 06:12 AM - Re: Pitot Location (Dee LeBlanc) 3. 07:33 AM - Re: Re: Build Pictures (doug@allegrolsa.com) 4. 07:40 AM - Re: Fuel Vapors in Cockpit (Hugh McKay) 5. 01:51 PM - Re: Fuel Vapors in Cockpit (Dee LeBlanc) 6. 04:43 PM - Re: Fuel Vapors in Cockpit (Hugh McKay) 7. 04:59 PM - Re: Fuel Vapors in Cockpit (Dee LeBlanc) ________________________________ Message 1 _____________________________________ Time: 06:00:05 AM PST US From: "Hugh McKay" Subject: Re: Allegro-List: Pitot Location Dee One, Doug Hempsted at LSA America should have these kits. Just Google LSA America. You will see how to contact them. Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com -----Original Message----- From: Dee One Sent: Sunday, April 03, 2016 4:01 PM Subject: Allegro-List: Pitot Location My 2007 Allegro pitot location is on the vertical stabilizer. The ASI varies wildly 10-15mph. Doug at Allegro said there's a kit to convert to a wing or strut mounted pitot; however I'm not able to get information on this kit. Would anyone know where I can obtain a kit or instructions for this conversion? Thanks for your response. -------- The Past is History The Future is a Mystery Today is a Gift Thats Why They Call it the Present Read this topic online here: http://forums.matronics.com/viewtopic.php?p=454508#454508 ________________________________ Message 2 _____________________________________ Time: 06:12:17 AM PST US From: Dee LeBlanc Subject: Re: Allegro-List: Pitot Location Thanks, I've called and emailed several times,; my problem is no response for 6 to 8 weeks now. I'm sure they're tied up with sun and fun now. I'll continue to try; thanks for your response. Dee LeBlanc leblancds@cox.net cell 225-802-1038 ~~~~~~~~~~~~~~~~ The Past is History The Future is a Mystery Today is a Gift That=92s Why They Call it the Present . The hell shit > On Apr 4, 2016, at 7:59 AM, Hugh McKay wrote: > > > Dee One, > > Doug Hempsted at LSA America should have these kits. Just Google LSA America. You will see how to contact them. > > Hugh G. McKay III, P.E. Fellow, L.M. ASCE > Senior Consultant > Worldwide Engineering Inc. > 4090 North NC Hwy. 16 > Denver, NC 28037 > > Ph. 704-661-8271 > Fax 704-483-5466 > email hgmckay@bellsouth.net > http://www.wwegeo.com > -----Original Message----- From: Dee One > Sent: Sunday, April 03, 2016 4:01 PM > To: allegro-list@matronics.com > Subject: Allegro-List: Pitot Location > > > My 2007 Allegro pitot location is on the vertical stabilizer. The ASI varies wildly 10-15mph. Doug at Allegro said there's a kit to convert to a wing or strut mounted pitot; however I'm not able to get information on this kit. Would anyone know where I can obtain a kit or instructions for this conversion? Thanks for your response. > > -------- > The Past is History > The Future is a Mystery > Today is a Gift > That=99s Why They Call it the Present > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=454508#454508 > > > > > > > > > > > > > ________________________________ Message 3 _____________________________________ Time: 07:33:16 AM PST US From: doug@allegrolsa.com Subject: RE: Re: Allegro-List: Build Pictures Luis, I am so sorry I did not catch your name earlier. As you will remember, we were in an ultralight club together in Whitsett, NC Please give me a call and I will make sure all your questions are answered. I look forward to t alking with you again. I hope you and your son and family are doing well =2E Doug Hemptsead 252-586-1200 - office 336-202-1585 - cell --------- Original Message --------- Subject: Re: Allegro-List: Build Pictu res From: "Luis Quijano" It's a 2005 Allegro 2000 On Apr 1, 2016 4:38 PM, "Jerry Goldberg" wrote: Luis, I have a construction CD for the Allegro 2000 that has that. Which model do you have? Thanks, Jerry N44456 Sent from my iPhone On Apr 1, 2016, at 2:03 PM, Luis Quijano wrote: Hello, I just bought an Allegro that sat in a hanger for about 7 years and the pr evious owner cut all fuel lines and electrical connect when he pulled the e ngine out to get looked at because of a prop strike. I have all the electri cal connection all set but I can't seem to figure out the fuel hose. Does a nyone has picture of the engine setup with all fuel lines I do have wing ta nks . Thank you for your help. Luis ________________________________ Message 4 _____________________________________ Time: 07:40:21 AM PST US From: "Hugh McKay" Subject: Re: Allegro-List: Fuel Vapors in Cockpit Dee One, If you are smelling fuel, my first suggestion is "don't fly the plane until you find the source of the fuel smell". You have too much at stake, your life!! Is your airplane a new allegro that was manufactured by LSA America? If it is call them and ask for help in finding the source of the fuel odor. If you bought your plane as a used Allegro, I would still call them. Another question is your Allegro a S-LSA or and E-LSA? If you have a S-LSA Allegro you probably have only a limited amount of technical information, drawings, diagrams, etc.. I fly an E-LSA Allegro 2000 model which I built from a Kit and know intimately, and can only comment on that airplane (which is a little different than an Allegro 2007 model). On the Allegro 2000 the electric fuel pump is just in front of the main belly tank under the floor board. Not sure where it is on the 2007 Model. Also, if you have wing tanks the plumbing for the fuel lines is much more complex than with out wing tanks. My first suggestion is to check the two fuel vent connections on the main fuel tank under your seat. They should be located just inside the cockpit on the very left side of the tank under the carpet covering. My second suggestion is to remove the top engine cowl and carefully inspect ALL the fuel line connections to the mechanical fuel pump, the fuel distributer (a five prong device that has five fuel lines connected to it) located on the top of the engine, and all fuel lines down stream from the fuel distributer. One of these downstream lines is a vent line back to the main fuel tank, one goes to the fuel pressure gage on your instrument panel(if you have a mechanical pressure gage), two go to the two carbs., and the last is the line coming in from the engine fuel pump. My third suggestion is to find out where the electric fuel pump is located. If it is under the floor board remove the floor board and check the fuel line connections to the electric fuel pump and the fuel tank, and the gascolator if it has one, and all other fuel line connections between the gascolator and the engine fuel pump. Do these inspections in sequence and hopefully you will find the problem, but by all means don't fly the plane until you find the source of fuel odor and correct it. Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com -----Original Message----- From: Dee One Sent: Sunday, April 03, 2016 4:25 PM Subject: Allegro-List: Fuel Vapors in Cockpit I had my maiden flight in my 2007 Allegro yesterday. One concern that I had was the smell of fuel particularly at low airspeed. My 17 gallon tank is in the fuselage under the seats. Has anyone else experienced this issue and if so what was your resolution? Also, would anyone happen to have a fuel system diagram showing feed lines, return lines, and vent lines . . . This may help to determine where are the vapors are originating from. Thanks for your response. -------- The Past is History The Future is a Mystery Today is a Gift Thats Why They Call it the Present Read this topic online here: http://forums.matronics.com/viewtopic.php?p=454512#454512 ________________________________ Message 5 _____________________________________ Time: 01:51:43 PM PST US Subject: Re: Allegro-List: Fuel Vapors in Cockpit From: Dee LeBlanc Hello Hugh, good to hear back from you. I have already completed all of the actions that you have suggested below. I have checked all the connections and they all look good. I have made a fuel system diagram and it is as you described below. The only anomaly that I found was fuel stains on the belly between the gascolater (which is in front of the firewall) and the fuel tank drain valve. The fumes may be coming from the gascolater and it may have a bad gasket. I will check into that. Thanks again. Dee LeBlanc Aerospace Engineer, AIAA Aero One Ltd leblancds@cox.net cell 225-802-1038 ~~~~~~~~~~~~~~~~ The Past is History The Future is a Mystery Today is a Gift That=92s Why They Call it the Present > On Apr 4, 2016, at 9:40 AM, Hugh McKay wrote: > > > Dee One, > > If you are smelling fuel, my first suggestion is "don't fly the plane until you find the source of the fuel smell". You have too much at stake, your life!! > > Is your airplane a new allegro that was manufactured by LSA America? If it is call them and ask for help in finding the source of the fuel odor. If you bought your plane as a used Allegro, I would still call them. Another question is your Allegro a S-LSA or and E-LSA? If you have a S-LSA Allegro you probably have only a limited amount of technical information, drawings, diagrams, etc.. I fly an E-LSA Allegro 2000 model which I built from a Kit and know intimately, and can only comment on that airplane (which is a little different than an Allegro 2007 model). On the Allegro 2000 the electric fuel pump is just in front of the main belly tank under the floor board. Not sure where it is on the 2007 Model. Also, if you have wing tanks the plumbing for the fuel lines is much more complex than with out wing tanks. > > My first suggestion is to check the two fuel vent connections on the main fuel tank under your seat. They should be located just inside the cockpit on the very left side of the tank under the carpet covering. > My second suggestion is to remove the top engine cowl and carefully inspect ALL the fuel line connections to the mechanical fuel pump, the fuel distributer (a five prong device that has five fuel lines connected to it) located on the top of the engine, and all fuel lines down stream from the fuel distributer. One of these downstream lines is a vent line back to the main fuel tank, one goes to the fuel pressure gage on your instrument panel(if you have a mechanical pressure gage), two go to the two carbs., and the last is the line coming in from the engine fuel pump. > > My third suggestion is to find out where the electric fuel pump is located. If it is under the floor board remove the floor board and check the fuel line connections to the electric fuel pump and the fuel tank, and the gascolator if it has one, and all other fuel line connections between the gascolator and the engine fuel pump. > > Do these inspections in sequence and hopefully you will find the problem, but by all means don't fly the plane until you find the source of fuel odor and correct it. > > > > Hugh G. McKay III, P.E. Fellow, L.M. ASCE > Senior Consultant > Worldwide Engineering Inc. > 4090 North NC Hwy. 16 > Denver, NC 28037 > > Ph. 704-661-8271 > Fax 704-483-5466 > email hgmckay@bellsouth.net > http://www.wwegeo.com > -----Original Message----- From: Dee One > Sent: Sunday, April 03, 2016 4:25 PM > To: allegro-list@matronics.com > Subject: Allegro-List: Fuel Vapors in Cockpit > > > I had my maiden flight in my 2007 Allegro yesterday. One concern that I had was the smell of fuel particularly at low airspeed. My 17 gallon tank is in the fuselage under the seats. Has anyone else experienced this issue and if so what was your resolution? Also, would anyone happen to have a fuel system diagram showing feed lines, return lines, and vent lines . . . This may help to determine where are the vapors are originating from. Thanks for your response. > > -------- > The Past is History > The Future is a Mystery > Today is a Gift > That=99s Why They Call it the Present > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=454512#454512 > > > > > > > > > > > > > ________________________________ Message 6 _____________________________________ Time: 04:43:49 PM PST US From: "Hugh McKay" Subject: Re: Allegro-List: Fuel Vapors in Cockpit Dee, If all other fuel connections are good the problem may very well be at the gascolater, especially if there are fuel stains on the underside of the airplane=92s belly. If the gascolater has never been opened it may have a bad gasket to begin with, or if it has been opened to check for contaminated fuel and bulb re-set; the gasket could be pinched, or the bulb not seated properly on the gasket before tightening. Another possibility is that the bulb itself is cracked due to over tightening. Either of these could cause a small fuel lake at the gascolater which because if its location would allow fumes to come up inside the cockpit under the floor board when taxiing (low engine rpms and very low air speed. speeds. It is going to be hard to determine if the bulb gasket is damaged because of its location, but you can check the integrity of the bulb by simply removing it and carefully inspecting it. I would check the bulb first. If it is not damaged (cracked), then carefully inspect the gasket seat in the bulb housing using a bright light. Of course before you do this you will have to drain all the fuel! Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com From: Dee LeBlanc Sent: Monday, April 04, 2016 4:51 PM Subject: Re: Allegro-List: Fuel Vapors in Cockpit Hello Hugh, good to hear back from you. I have already completed all of the actions that you have suggested below. I have checked all the connections and they all look good. I have made a fuel system diagram and it is as you described below. The only anomaly that I found was fuel stains on the belly between the gascolater (which is in front of the firewall) and the fuel tank drain valve. The fumes may be coming from the gascolater and it may have a bad gasket. I will check into that. Thanks again. Dee LeBlanc Aerospace Engineer, AIAA Aero One Ltd leblancds@cox.net cell 225-802-1038 ~~~~~~~~~~~~~~~~ The Past is History The Future is a Mystery Today is a Gift That=92s Why They Call it the Present On Apr 4, 2016, at 9:40 AM, Hugh McKay wrote: Dee One, If you are smelling fuel, my first suggestion is "don't fly the plane until you find the source of the fuel smell". You have too much at stake, your life!! Is your airplane a new allegro that was manufactured by LSA America? If it is call them and ask for help in finding the source of the fuel odor. If you bought your plane as a used Allegro, I would still call them. Another question is your Allegro a S-LSA or and E-LSA? If you have a S-LSA Allegro you probably have only a limited amount of technical information, drawings, diagrams, etc.. I fly an E-LSA Allegro 2000 model which I built from a Kit and know intimately, and can only comment on that airplane (which is a little different than an Allegro 2007 model). On the Allegro 2000 the electric fuel pump is just in front of the main belly tank under the floor board. Not sure where it is on the 2007 Model. Also, if you have wing tanks the plumbing for the fuel lines is much more complex than with out wing tanks. My first suggestion is to check the two fuel vent connections on the main fuel tank under your seat. They should be located just inside the cockpit on the very left side of the tank under the carpet covering. My second suggestion is to remove the top engine cowl and carefully inspect ALL the fuel line connections to the mechanical fuel pump, the fuel distributer (a five prong device that has five fuel lines connected to it) located on the top of the engine, and all fuel lines down stream from the fuel distributer. One of these downstream lines is a vent line back to the main fuel tank, one goes to the fuel pressure gage on your instrument panel(if you have a mechanical pressure gage), two go to the two carbs., and the last is the line coming in from the engine fuel pump. My third suggestion is to find out where the electric fuel pump is located. If it is under the floor board remove the floor board and check the fuel line connections to the electric fuel pump and the fuel tank, and the gascolator if it has one, and all other fuel line connections between the gascolator and the engine fuel pump. Do these inspections in sequence and hopefully you will find the problem, but by all means don't fly the plane until you find the source of fuel odor and correct it. Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com -----Original Message----- From: Dee One Sent: Sunday, April 03, 2016 4:25 PM To: allegro-list@matronics.com Subject: Allegro-List: Fuel Vapors in Cockpit I had my maiden flight in my 2007 Allegro yesterday. One concern that I had was the smell of fuel particularly at low airspeed. My 17 gallon tank is in the fuselage under the seats. Has anyone else experienced this issue and if so what was your resolution? Also, would anyone happen to have a fuel system diagram showing feed lines, return lines, and vent lines . . . This may help to determine where are the vapors are originating from. Thanks for your response. -------- The Past is History The Future is a Mystery Today is a Gift That=99s Why They Call it the Present Read this topic online here: http://forums.matronics.com/viewtopic.php?p=454512#454512 ________________________________ Message 7 _____________________________________ Time: 04:59:21 PM PST US From: Dee LeBlanc Subject: Re: Allegro-List: Fuel Vapors in Cockpit OK Hugh, Will pursue this avenue. Thanks for your advice. Dee > On Apr 4, 2016, at 6:43 PM, Hugh McKay wrote: > > Dee, > > If all other fuel connections are good the problem may very well be at the gascolater, especially if there are fuel stains on the underside of the airplane=92s belly. If the gascolater has never been opened it may have a bad gasket to begin with, or if it has been opened to check for contaminated fuel and bulb re-set; the gasket could be pinched, or the bulb not seated properly on the gasket before tightening. Another possibility is that the bulb itself is cracked due to over tightening. Either of these could cause a small fuel lake at the gascolater which because if its location would allow fumes to come up inside the cockpit under the floor board when taxiing (low engine rpms and very low air speed. speeds. It is going to be hard to determine if the bulb gasket is damaged because of its location, but you can check the integrity of the bulb by simply removing it and carefully inspecting it. I would check the bulb first. If it is not damaged (cracked), then carefully inspect the gasket seat in the bulb housing using a bright light. Of course before you do this you will have to drain all the fuel! > > Hugh G. McKay III, P.E. Fellow, L.M. ASCE > Senior Consultant > Worldwide Engineering Inc. > 4090 North NC Hwy. 16 > Denver, NC 28037 > > Ph. 704-661-8271 > Fax 704-483-5466 > email hgmckay@bellsouth.net > http://www.wwegeo.com > > From: Dee LeBlanc > Sent: Monday, April 04, 2016 4:51 PM > To: allegro-list@matronics.com > Subject: Re: Allegro-List: Fuel Vapors in Cockpit > > Hello Hugh, good to hear back from you. I have already completed all of the actions that you have suggested below. I have checked all the connections and they all look good. I have made a fuel system diagram and it is as you described below. The only anomaly that I found was fuel stains on the belly between the gascolater (which is in front of the firewall) and the fuel tank drain valve. The fumes may be coming from the gascolater and it may have a bad gasket. I will check into that. Thanks again. > > Dee LeBlanc > Aerospace Engineer, AIAA > Aero One Ltd > leblancds@cox.net > cell 225-802-1038 > ~~~~~~~~~~~~~~~~ > The Past is History > The Future is a Mystery > Today is a Gift > That=92s Why They Call it the Present > > > > > > > >> On Apr 4, 2016, at 9:40 AM, Hugh McKay > wrote: >> > >> >> Dee One, >> >> If you are smelling fuel, my first suggestion is "don't fly the plane until you find the source of the fuel smell". You have too much at stake, your life!! >> >> Is your airplane a new allegro that was manufactured by LSA America? If it is call them and ask for help in finding the source of the fuel odor. If you bought your plane as a used Allegro, I would still call them. Another question is your Allegro a S-LSA or and E-LSA? If you have a S-LSA Allegro you probably have only a limited amount of technical information, drawings, diagrams, etc.. I fly an E-LSA Allegro 2000 model which I built from a Kit and know intimately, and can only comment on that airplane (which is a little different than an Allegro 2007 model). On the Allegro 2000 the electric fuel pump is just in front of the main belly tank under the floor board. Not sure where it is on the 2007 Model. Also, if you have wing tanks the plumbing for the fuel lines is much more complex than with out wing tanks. >> >> My first suggestion is to check the two fuel vent connections on the main fuel tank under your seat. They should be located just inside the cockpit on the very left side of the tank under the carpet covering. >> My second suggestion is to remove the top engine cowl and carefully inspect ALL the fuel line connections to the mechanical fuel pump, the fuel distributer (a five prong device that has five fuel lines connected to it) located on the top of the engine, and all fuel lines down stream from the fuel distributer. One of these downstream lines is a vent line back to the main fuel tank, one goes to the fuel pressure gage on your instrument panel(if you have a mechanical pressure gage), two go to the two carbs., and the last is the line coming in from the engine fuel pump. >> >> My third suggestion is to find out where the electric fuel pump is located. If it is under the floor board remove the floor board and check the fuel line connections to the electric fuel pump and the fuel tank, and the gascolator if it has one, and all other fuel line connections between the gascolator and the engine fuel pump. >> >> Do these inspections in sequence and hopefully you will find the problem, but by all means don't fly the plane until you find the source of fuel odor and correct it. >> >> >> >> Hugh G. McKay III, P.E. Fellow, L.M. ASCE >> Senior Consultant >> Worldwide Engineering Inc. >> 4090 North NC Hwy. 16 >> Denver, NC 28037 >> >> Ph. 704-661-8271 >> Fax 704-483-5466 >> email hgmckay@bellsouth.net >> http://www.wwegeo.com >> -----Original Message----- From: Dee One >> Sent: Sunday, April 03, 2016 4:25 PM >> To: allegro-list@matronics.com >> Subject: Allegro-List: Fuel Vapors in Cockpit >> >> >> I had my maiden flight in my 2007 Allegro yesterday. One concern that I had was the smell of fuel particularly at low airspeed. My 17 gallon tank is in the fuselage under the seats. Has anyone else experienced this issue and if so what was your resolution? Also, would anyone happen to have a fuel system diagram showing feed lines, return lines, and vent lines . . . This may help to determine where are the vapors are originating from. Thanks for your response. >> >> -------- >> The Past is History >> The Future is a Mystery >> Today is a Gift >> That=99s Why They Call it the Present >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=454512#454512 >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message allegro-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Allegro-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/allegro-list Browse Digests http://www.matronics.com/digest/allegro-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.