---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Mon 10/07/13: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:37 AM - Re: IO-240 Fuel pump (Owen Baker) ________________________________ Message 1 _____________________________________ Time: 05:37:44 AM PST US From: "Owen Baker " Subject: Re: KIS-List: IO-240 Fuel pump 10/7/2013 Hello Tim, You wrote: 1) It was a close call yesterday, I was able to divert to a field about 7 miles away and just made it with the rpm continuing to fall off. The electric boost pump kept it running. Good move must have been a significant leak from the engine driven fuel pump. Q1) What electric boost pump do you have installed? Q2) What fuel pressure(s) does it generate? Q3) So your plane is now grounded at that other than home field? Q4) Was the engine driven fuel pump leak external so that you could see the fuel dripping / running out with the engine running? 2) I will read the info you sent but what is the difference in the -2A3 pump. That I dont know, but the change was significant enough for TCM to put out CSB01-1 and provide me the new -2A3 pump at their expense so they must have felt it to be pretty significant. When you talk to CM tech support you can ask them that question and pass the answer on to us. 3) "I have the same fuel pump that you had." Q5) So your engine came with the P/N 653351-2 pump and you had it rebuilt in the field (not at TCM factory) when it leaked previously? If so, that was probably one of the data points that led to the creation of CSB01-1. Q6) What was the date of your previous engine driven fuel pump leak and repair? 4) "Interesting that it is a higher S/N than yours that was made almost 2 1/2 years later." Yes. I have also pondered that situation. I think that my engine was either lying around the factory for some reason (defect?) or returned to the factory from the field for some reason (defect?). Then when I specified the unique configuration of my IO-240 B9B engine** the factory saw an opportunity to cobble together my unique configuration engine and get rid of the engine lying around. Thanks, OC **PS: I had studied in great detail the IO-240 XXX engine installations in the Diamond DA20-C1 and Eagle airplanes and designed my engine like choosing from a Chinese restaurant menu: 1 item from column A, 2 items from column B, and so forth. I thought that TCM should designate my engine configuration as the IO-240 OCB engine, but they went with the IO-240 B9B designation, the next number in the configuration sequence. As far as I know my engine is the only one made with that specific configuration. I think that the IO-240 BXXB engine configuration numbers are now well up into the teens (or maybe higher even). It would be interesting to get a configuration matrix showing just exactly what configuration each engine has by configuration number. That information was hard to come by even back when I attended the TCM factory engine training course before ordering my engine. See here (but don't believe everything written here -- it is not accurate in every detail): http://en.wikipedia.org/wiki/Continental_O-240 =========================================================================== From: Tim Yoder Sent: Sunday, October 06, 2013 10:21 PM Subject: RE: KIS-List: IO-240 Fuel pump Hello OC, Thank you for your response, I have the same fuel pump that you had. Also, my engine S/N 806822 mfg. 4/18/97. Interesting that it is a higher S/N than yours that was made almost 2 1/2 years later. I will read the info you sent but what is the difference in the -2A3 pump. It was a close call yesterday, I was able to divert to a field about 7 miles away and just made it with the rpm continuing to fall off. The electric boost pump kept it running. Tim ================================================================================================ From: owner-kis-list-server@matronics.com [mailto:owner-kis-list-server@matronics.com] On Behalf Of Owen Baker Sent: Sunday, October 06, 2013 6:52 PM Subject: KIS-List: IO-240 Fuel pump 10/6/2013 Hello Tim, I am sorry to hear that you are having a fuel leak problem with the fuel pump on your IO-240 XXX engine. You wrote: 1) Is there a problem with the pump? The simple answer to that question is: Yes. The complete answer can get complicated. 2) Do the newer engines have the same pump? The simple answer to that question is: Probably the same basic IO240 BXB pump, but with some different subscript numbers attached to the basic pump P/N 653351. But again the answer can get complicated. 3) Any suggestions? Yes. First download and review in some detail these two publications so that you have a fairly firm grasp of exactly what fuel injection assembly you have on your engine (probably a P/N 649059XX-X) and which pump you are dealing with (probably a P/N 653351-XXX) and some past history on modifications and changes to these fuel injection assemblies and pumps. http://www.tcmlink.com/pdf2/CSB01-1.pdf http://www.tcmlink.com/pdf2/SIL98-6B.pdf Then, with these details readily at hand, give CM technical support people a call at 888-826-5465 and get their advice on what to do next. Please let us know how you make out. Thanks. OC 'O C' Baker says "The best investment you can make is the effort to gather and understand information." PS: For example: My IO-240 B9B engine, serial number 806236, manufactured on 9/1/1999 came with fuel pump P/N 653351-2. On 7/3/2001 I complied with TCM CSB 01-1 to remove that pump and install pump P/N 653351-2A3. ============================================================================================ From: Tim Yoder Sent: Sunday, October 06, 2013 3:03 PM Subject: KIS-List: IO-240 Fuel pump I have a 1997 IO-240 and the fuel pump started leaking fuel again. It did this once before and I had it rebuilt. The engine only has 518 HRS TT. Is there a problem with the pump? Do the newer engines have the same pump? Any suggestions? Thanks, Tim ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kis-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/KIS-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/kis-list Browse Digests http://www.matronics.com/digest/kis-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.