---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Tue 11/04/08: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:43 AM - Re: Fuel Filter (Richard Girard) 2. 06:11 AM - Re: Fuel Filter (Jim Crowder) 3. 12:12 PM - Carburetor (BobbyPaulk@COMCAST.NET) 4. 03:16 PM - Re: Carburetor (Miguel Azevedo) 5. 03:55 PM - Re: Carburetor (gary aman) 6. 05:34 PM - Re: Fuel Filter (Richard Girard) ________________________________ Message 1 _____________________________________ Time: 04:43:39 AM PST US From: "Richard Girard" Subject: Re: JabiruEngine-List: Fuel Filter Lynn, et al, Be very cautious when buying the latest version of the "Clearview" type of fuel filter. They are now marketed by several companies, among them "Mr. Gasket". The design has been re-engineered to make them easier to manufacture and the result is no longer suitable for any vehicle application and certainly not aircraft IMHO. The original Purolator filter (mine is circa 1994) had one end and the center section machined as one piece and the center section was round which yielded threads that gave a circular contact on the end that screwed on. Now the center section is a flat cast piece. The parting line runs through the center of the part and the two sides are MISALIGNED (!) so that the ends will not stay square to it when the filter is assembled. The result is that the o-rings get damaged and leak. In addition this new center section is only about 1/8" (3.2mm) thick so the area of thread engagement to the threads in the end pieces is very small. In the original the barbed fittings were part of ends making for a bit of a PITA since you had to buy a specific size to match the fuel line used in the application. The new version has threaded ends and comes with a set of plastic barbed fittings so one size fits all, however, the ends are chromed and the "overspray" (for lack of a better term) into the first two threads makes it necessary to chase the threads if you wish to use metal fittings. If you wish to investigate for yourself, I recommend you remove the filter from its packaging and inspect it right there on the store counter. If they make you buy it first at least you won't have to make a return trip to take it back. Rick On Tue, Nov 4, 2008 at 12:05 AM, Lynn Matteson wrote: > > I use Purolator in-line fuel filters in each of the down-lines from my two > fuel tanks, and another just after the main shut-off valve. These have a > glass see-through housing, and replaceable filters. Total of 3 filters. > Aircraft Spruce has them, as well as some auto parts outlets. They might not > be available as Purolators any more, but NAPA carries them in their own > brand, and it is the same thing. > > Lynn Matteson > Kitfox IV Speedster > Jabiru 2200, 587hrs > Sensenich 62x46 > flying again after rebuild, and new Electroair direct-fire ignition system > > > On Nov 3, 2008, at 9:21 PM, pequeajim wrote: > >> >> What are you all using for a fuel filter with your Jabiru engines? >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=212186#212186 >> >> >> >> >> >> >> >> >> >> >> > > ________________________________ Message 2 _____________________________________ Time: 06:11:53 AM PST US From: "Jim Crowder" Subject: RE: JabiruEngine-List: Fuel Filter Rick, What filters are you now using? I'm about to replace mine. Jim Crowder -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com]On Behalf Of Richard Girard Sent: Tuesday, November 04, 2008 5:43 AM To: jabiruengine-list@matronics.com Subject: Re: JabiruEngine-List: Fuel Filter Lynn, et al, Be very cautious when buying the latest version of the "Clearview" type of fuel filter. They are now marketed by several companies, among them "Mr. Gasket". The design has been re-engineered to make them easier to manufacture and the result is no longer suitable for any vehicle application and certainly not aircraft IMHO. The original Purolator filter (mine is circa 1994) had one end and the center section machined as one piece and the center section was round which yielded threads that gave a circular contact on the end that screwed on. Now the center section is a flat cast piece. The parting line runs through the center of the part and the two sides are MISALIGNED (!) so that the ends will not stay square to it when the filter is assembled. The result is that the o-rings get damaged and leak. In addition this new center section is only about 1/8" (3.2mm) thick so the area of thread engagement to the threads in the end pieces is very small. In the original the barbed fittings were part of ends making for a bit of a PITA since you had to buy a specific size to match the fuel line used in the application. The new version has threaded ends and comes with a set of plastic barbed fittings so one size fits all, however, the ends are chromed and the "overspray" (for lack of a better term) into the first two threads makes it necessary to chase the threads if you wish to use metal fittings. If you wish to investigate for yourself, I recommend you remove the filter from its packaging and inspect it right there on the store counter. If they make you buy it first at least you won't have to make a return trip to take it back. Rick On Tue, Nov 4, 2008 at 12:05 AM, Lynn Matteson wrote: I use Purolator in-line fuel filters in each of the down-lines from my two fuel tanks, and another just after the main shut-off valve. These have a glass see-through housing, and replaceable filters. Total of 3 filters. Aircraft Spruce has them, as well as some auto parts outlets. They might not be available as Purolators any more, but NAPA carries them in their own brand, and it is the same thing. Lynn Matteson Kitfox IV Speedster Jabiru 2200, 587hrs Sensenich 62x46 flying again after rebuild, and new Electroair direct-fire ignition system On Nov 3, 2008, at 9:21 PM, pequeajim wrote: What are you all using for a fuel filter with your Jabiru engines? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=212186#212186 ________________________________ Message 3 _____________________________________ Time: 12:12:14 PM PST US From: BobbyPaulk@COMCAST.NET Subject: JabiruEngine-List: Carburetor List, my 3300 Jab idles fairly good at 800 ~ 900 Rpm when i crack the throttle off idle at about 1050 to 1300 it will puff black smoke. at 1500 rpm it will smooth out. has any one changed jets or needle to fix the idle and low end mixture. i think if i change the needle jet to a smaller size then it would run too lean at cruise. this would call for a change in needle configuration. i gotta do something. any help would be appreciated. bobby N131BP 601 XL ________________________________ Message 4 _____________________________________ Time: 03:16:30 PM PST US From: "Miguel Azevedo" Subject: Re: JabiruEngine-List: Carburetor Bob, >From an user of SU carbs in English cars: The symptoms are of a rich mixture which comes about when you open the butterfly (mixture mass flow control) but the slider (air valve control) is stuck closed. The BING carb must have - just like SUs - some sort of damping system to preclude the slider to jerk open as you open the throttle. SUs do it via a small reservoir filled with very light oil and a plunger. Oil can leak through the plunger at a prescribed rate, and this controls how fast the slider opens. I do not know how this is accomplished by BING but it is worth some study. If the slider is sticking, as you open the throttle fuel is sucked from the needle well but the slider does not allow more air flow and this results in an overly rich mixture and black smoke. Check the slider for smooth motion from fully closed to fully open. If some stickiness is noted, a cleaning is in order. These carbs are very, very sensitive to dirt, dust or other miniscule things that may get in between the slider and guide. Worst case scenario is a punctured rubber membrane (diaphragm) which pulls the slider up. A tiny leakage will induce the described behavior also. It will not matter greatly above a certain speed. Do not change needles unecessarily. Good hunting! Miguel Azevedo PA22/20-150 On Tue, Nov 4, 2008 at 3:10 PM, wrote: > > > List, > my 3300 Jab idles fairly good at 800 ~ 900 Rpm when i crack the throttle > off idle at about 1050 to 1300 it will puff black smoke. at 1500 rpm it will > smooth out. > has any one changed jets or needle to fix the idle and low end mixture. > i think if i change the needle jet to a smaller size then it would run too > lean at cruise. > this would call for a change in needle configuration. > i gotta do something. any help would be appreciated. > > bobby > N131BP > 601 XL > > ________________________________ Message 5 _____________________________________ Time: 03:55:05 PM PST US From: gary aman Subject: Re: JabiruEngine-List: Carburetor Are there members on the list who are completely thrilled with the Bing 64CV? Does anyone have any experience with an alternative? Thanx,G.Aman 2200 Jabiru/Bing 64CV,380hrs, attached with velcro. ----- Original Message ---- From: Miguel Azevedo Sent: Tuesday, November 4, 2008 6:15:17 PM Subject: Re: JabiruEngine-List: Carburetor Bob, >From an user of SU carbs in English cars: The symptoms are of a rich mixture which comes about when you open the butterfly (mixture mass flow control) but the slider (air valve control) is stuck closed. The BING carb must have - just like SUs - some sort of damping system to preclude the slider to jerk open as you open the throttle. SUs do it via a small reservoir filled with very light oil and a plunger. Oil can leak through the plunger at a prescribed rate, and this controls how fast the slider opens. I do not know how this is accomplished by BING but it is worth some study. If the slider is sticking, as you open the throttle fuel is sucked from the needle well but the slider does not allow more air flow and this results in an overly rich mixture and black smoke. Check the slider for smooth motion from fully closed to fully open. If some stickiness is noted, a cleaning is in order. These carbs are very, very sensitive to dirt, dust or other miniscule things that may get in between the slider and guide. Worst case scenario is a punctured rubber membrane (diaphragm) which pulls the slider up. A tiny leakage will induce the described behavior also. It will not matter greatly above a certain speed. Do not change needles unecessarily. Good hunting! Miguel Azevedo PA22/20-150 On Tue, Nov 4, 2008 at 3:10 PM, wrote: List, my 3300 Jab idles fairly good at 800 ~ 900 Rpm when i crack the throttle off idle at about 1050 to 1300 it will puff black smoke. at 1500 rpm it will smooth out. has any one changed jets or needle to fix the idle and low end mixture. i think if i change the needle jet to a smaller size then it would run too lean at cruise. this would call for a change in needle configuration. i gotta do something. any help would be appreciated. bobby N131BP ________________________________ Message 6 _____________________________________ Time: 05:34:16 PM PST US From: "Richard Girard" Subject: Re: JabiruEngine-List: Fuel Filter I have a Clearview that was sitting in my Harley parts bin when I bought the Mr. Gasket POS, so the Mr.Gasket unit went back to the auto parts store and the Vibraglide filter went airborne.One more thing about fuel filters. If you live in a country subject to the Ethanol swindle as we are in the USA be careful NOT to use any kind of fuel filter with a paper element. If water should drop out of suspension it will coat the paper and, well, you might as well try to fly with the fuel valve closed. This isn't just my opinion, Rotax mentions this specifically in their manuals. Rick On Tue, Nov 4, 2008 at 8:11 AM, Jim Crowder wrote: > Rick, > What filters are you now using? I'm about to replace mine. > Jim Crowder > > -----Original Message----- > *From:* owner-jabiruengine-list-server@matronics.com [mailto: > owner-jabiruengine-list-server@matronics.com]*On Behalf Of *Richard Girard > *Sent:* Tuesday, November 04, 2008 5:43 AM > *To:* jabiruengine-list@matronics.com > *Subject:* Re: JabiruEngine-List: Fuel Filter > > Lynn, et al, Be very cautious when buying the latest version of the > "Clearview" type of fuel filter. They are now marketed by several companies, > among them "Mr. Gasket". The design has been re-engineered to make them > easier to manufacture and the result is no longer suitable for any vehicle > application and certainly not aircraft IMHO. > The original Purolator filter (mine is circa 1994) had one end and the > center section machined as one piece and the center section was round which > yielded threads that gave a circular contact on the end that screwed on. Now > the center section is a flat cast piece. The parting line runs through the > center of the part and the two sides are MISALIGNED (!) so that the ends > will not stay square to it when the filter is assembled. The result is that > the o-rings get damaged and leak. In addition this new center section is > only about 1/8" (3.2mm) thick so the area of thread engagement to the > threads in the end pieces is very small. > In the original the barbed fittings were part of ends making for a bit of a > PITA since you had to buy a specific size to match the fuel line used in the > application. The new version has threaded ends and comes with a set of > plastic barbed fittings so one size fits all, however, the ends are chromed > and the "overspray" (for lack of a better term) into the first two threads > makes it necessary to chase the threads if you wish to use metal fittings. > If you wish to investigate for yourself, I recommend you remove the filter > from its packaging and inspect it right there on the store counter. If they > make you buy it first at least you won't have to make a return trip to take > it back. > > Rick > > On Tue, Nov 4, 2008 at 12:05 AM, Lynn Matteson wrote: > >> >> I use Purolator in-line fuel filters in each of the down-lines from my two >> fuel tanks, and another just after the main shut-off valve. These have a >> glass see-through housing, and replaceable filters. Total of 3 filters. >> Aircraft Spruce has them, as well as some auto parts outlets. They might not >> be available as Purolators any more, but NAPA carries them in their own >> brand, and it is the same thing. >> >> Lynn Matteson >> Kitfox IV Speedster >> Jabiru 2200, 587hrs >> Sensenich 62x46 >> flying again after rebuild, and new Electroair direct-fire ignition system >> >> >> >> >> On Nov 3, 2008, at 9:21 PM, pequeajim wrote: >> >>> > >>> >>> What are you all using for a fuel filter with your Jabiru engines? >>> >>> >>> >>> >>> Read this topic online here: >>> >>> http://forums.matronics.com/viewtopic.php?p=212186#212186 >>> >>> *href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?JabiruEngine-List">http://www.matronics.com/Navigator?JabiruEngine-List >>> href="http://forums.matronics.com">http://forums.matronics.com* >>> > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-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/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-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.