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Hermes SMTP Server) with ESMTPA ID 4a34f21174d12b7b6a889f784d154c3a; Fri, 21 Feb 2025 23:46:44 +0000 (UTC) Message-ID: Date: Fri, 21 Feb 2025 18:46:28 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [FlyRotary] Fuel injection Diagram To: Rotary motors in aircraft References: Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: WebService/1.1.23369 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.aol X-SPAM-LEVEL: Spam detection results: 0 AWL -0.612 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain DMARC_PASS -0.1 DMARC pass policy JMQ_SPF_NEUTRAL 0.5 SPF set to ?all KAM_MXURI 1.5 URI begins with a mail exchange prefix, i.e. mx.[...] RCVD_IN_DNSWL_NONE -0.0001 Sender listed at https://www.dnswl.org/, no trust RCVD_IN_MSPIKE_H2 0.001 Average reputation (+2) RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_RPBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_SAFE_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [lancaironline.net,flyrotary.com] WEIRD_PORT 0.001 Uses non-standard port number for HTTP My RV-4's is similar to Charlie's, except I have a dedicated line into the right tank for fuel transfer. I did not want to have the low pressure Facet transfer pump fight the fuel regulator return stream. So: Fuel transfer from left to right tank. Fuel pickup in right tank -> coarse filter -> Y'd two EFI pumps Y'd -> fuel regulator (return from fuel regulator directly back into right tank) -> firewall -> EFI fuel filter -> Y'd primary and secondary fuel rails. Fuel pressure sender on end of secondary fuel rail. (Output from pressure sender electronically filtered to filter out spikes from injectors opening and closing). The transfer line goes into the second bay in the right tank (maybe more, I forget). The return line from regulator goes all the way out into the outermost bay in the right tank. All lines are 3/8" except 1/4" vent line. If you want I can post or send pictures. Finn On 2/21/2025 11:14 AM, Le Roux Breytenbach breytenbachleroux@gmail.com wrote: > Hi : Do somebody have a schematic drawing ? Of a typical low wing experimental aircraft fuel system to the 13B. > Can’t find good detail info. > The feed from the wings to the high pressure fuelpumps. > Where to place the low pressure fuel pumps and then to fuel injection pumps. > Must i do a header tank ? or not.Must the high pressure pumps be inside or outside on the firewall? > > Regards Le Roux > > Sent from my iPhone > Le Roux Breytenbach > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html