---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Wed 03/07/07: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:23 AM - Superior XP O320 vs. 9A - Continuing Saga (Snow, Daniel A.) 2. 08:34 AM - horiz. snorkel and cowling clearance (Paul Rice) 3. 10:24 AM - Alternator field current? (Jerry2DT@aol.com) 4. 10:59 AM - video technology (Bill VonDane) 5. 12:01 PM - Re: Superior XP O320 vs. 9A - Continuing Saga (Randy Lervold) 6. 12:57 PM - Re: Alternator field current? (Richard Reynolds) 7. 02:03 PM - Re: Alternator field current? (Hopperdhh@aol.com) 8. 07:45 PM - Re: horiz. snorkel and cowling clearance (LarryRobertHelming) 9. 08:54 PM - Re: horiz. snorkel and cowling clearance (Paul Rice) 10. 08:54 PM - Headset rant (Darwin N. Barrie) ________________________________ Message 1 _____________________________________ Time: 05:23:10 AM PST US Subject: RV-List: Superior XP O320 vs. 9A - Continuing Saga From: "Snow, Daniel A." I wrote several weeks ago about the interference between Superior's O320 carb and the 9A's lower cowl. The planned fix from Superior is to swap out the longer carb with a shorter one. Superior has been telling me that the testing of the new carb keeps getting bumped. They supposedly were finally able to test it last week, but the EGT's varied by as much as 300 degrees. According to the Superior rep, they have ordered another carb to test, but may have to test several before they get acceptable test results. This news is very disappointing to me, as I was hoping to fly to Sun-n-Fun in April. The good news is that I'll have a 9-hour drive to stew about having to drive and to wonder if Aerosport wouldn't have been a better choice. ________________________________ Message 2 _____________________________________ Time: 08:34:23 AM PST US From: "Paul Rice" Subject: RV-List: horiz. snorkel and cowling clearance Hey guys, I just fit my horiz. induction snorkel to the engin and baffling, but when I put the cowl bottom cowl on, it touches the lower front part of the snorkel. Any suggestions, or am I just going to have to cut out a piece out of the snorkel and make it smaller. Thanks in advance, Paul ________________________________ Message 3 _____________________________________ Time: 10:24:49 AM PST US From: Jerry2DT@aol.com Subject: RV-List: Alternator field current? Folks, I may be having a brain lockup, but trying to determine field current for the old 14184 type Van's alternator. I just began running my engine for the first time, and thought I had it wired per Z-11. I had inserted a 5a fuse onto the field circuit at the bus because I thought this would be equivalent to inserting one inline after the switch as Z-11 shows instead of the 22AWG fuselink. Z-11 looks like this circuit has double protection with the fuselink and 5a fuse on the same circuit .. Well, upon first start, the 5a fuse on the buss blew, so I have two questions for Bob and/or other smart people on this list. 1) Why the "extra" protection on the field circuit? 2) What typically would the current draw be on the field circuit for this 35a alternator. I checked the archives and manuals, no joy... BTW, if it matters, this is the "Generic Ford" regulator as per Z-11 Any/all advice/input appreciated... If you have an immediate answer, please email me as well at jerry2dt@aol.com Jerry Cochran RV6a FAA inspection tomorrow!!!


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AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 4 _____________________________________ Time: 10:59:47 AM PST US From: "Bill VonDane" Subject: RV-List: video technology Hey do we have any video technology experts out there? As in the engineering behind video cameras and the like... Thanks! -Bill bill@vondane.com do not archive ________________________________ Message 5 _____________________________________ Time: 12:01:06 PM PST US From: "Randy Lervold" Subject: Re: RV-List: Superior XP O320 vs. 9A - Continuing Saga Daniel, So I take it Superior is using a non-standard O-320 carburetor? Have you thought about ordering an RV-7A O-360 lower cowl? I had a similar problem... discovered that my SilverHawk FI servo is taller than an O-320 carb necessitating a lower cowl with the O-360 scoop. Full story... http://www.romeolima.com/RV3works/Airframe/airframe.htm#Finish Randy Lervold ----- Original Message ----- From: "Snow, Daniel A." Sent: Wednesday, March 07, 2007 5:22 AM Subject: RV-List: Superior XP O320 vs. 9A - Continuing Saga > > I wrote several weeks ago about the interference between Superior's O320 > carb and the 9A's lower cowl. The planned fix from Superior is to swap > out the longer carb with a shorter one. Superior has been telling me > that the testing of the new carb keeps getting bumped. They supposedly > were finally able to test it last week, but the EGT's varied by as much > as 300 degrees. According to the Superior rep, they have ordered > another carb to test, but may have to test several before they get > acceptable test results. > > This news is very disappointing to me, as I was hoping to fly to > Sun-n-Fun in April. The good news is that I'll have a 9-hour drive to > stew about having to drive and to wonder if Aerosport wouldn't have been > a better choice. > > > ________________________________ Message 6 _____________________________________ Time: 12:57:55 PM PST US From: Richard Reynolds Subject: Re: RV-List: Alternator field current? Jerry My B&C 60A draws about 4 amps. Richard Reynolds Norfolk, VA RV-6A, 350 hours On Mar 7, 2007, at 1:22 PM, Jerry2DT@aol.com wrote: > Folks, > > I may be having a brain lockup, but trying to determine field > current for the old 14184 type Van's alternator. I just began > running my engine for the first time, and thought I had it wired > per Z-11. I had inserted a 5a fuse onto the field circuit at the > bus because I thought this would be equivalent to inserting one > inline after the switch as Z-11 shows instead of the 22AWG > fuselink. Z-11 looks like this circuit has double protection with > the fuselink and 5a fuse on the same circuit > . > Well, upon first start, the 5a fuse on the buss blew, so I have two > questions for Bob and/or other smart people on this list. > > 1) Why the "extra" protection on the field circuit? > > 2) What typically would the current draw be on the field circuit > for this 35a alternator. I checked the archives and manuals, no joy... > > BTW, if it matters, this is the "Generic Ford" regulator as per Z-11 > > Any/all advice/input appreciated... > > If you have an immediate answer, please email me as well at > jerry2dt@aol.com > > Jerry Cochran > RV6a FAA inspection tomorrow!!! > > > AOL now offers free email to everyone. Find out more about > what1227241x4298082137/aol?redir=http://www.aol.com" href="http:// > pr.atwola.com/promoclk/1615326657x4311227241x4298082137/aol? > redir=http%3A%2F%2Fwww%2Eaol%2Ecom" target="_blank">AOL.com. > > ________________________________ Message 7 _____________________________________ Time: 02:03:09 PM PST US From: Hopperdhh@aol.com Subject: Re: RV-List: Alternator field current? Jerry, The field current is not necessarily related to the output current rating of the alternator. It would normally be smaller for a small alternator, but not always in direct proportion. It should be less than 10 amps for sure. Try a temporary 10 amp fuse in place of your 5 amp fuse. If that blows, you have a problem. If it works, measure the current and use a fuse rated for about 1.5 to 2 times that current. I think the field fuse or switch/breaker is just a way to disable the alternator if it should become necessary for any reason -- like an overvoltage condition. Some automotive internal electronic regulators may not turn off if the "field" breaker is turned off. They must get power from some other source. There has been a lot of discussion about this on various lists. Dan Hopper Automotive engineer, ret. RV-7A N766DH Just flew yesterday, finally -- weather has been awful here in IN this winter. In a message dated 3/7/2007 1:26:21 PM Eastern Standard Time, Jerry2DT@aol.com writes: .. Well, upon first start, the 5a fuse on the buss blew, so I have two questions for Bob and/or other smart people on this list. 1) Why the "extra" protection on the field circuit? 2) What typically would the current draw be on the field circuit for this 35a alternator. I checked the archives and manuals, no joy... BTW, if it matters, this is the "Generic Ford" regulator as per Z-11 Any/all advice/input appreciated... If you have an immediate answer, please email me as well at jerry2dt@aol.com Jerry Cochran RV6a FAA inspection tomorrow!!!


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AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 8 _____________________________________ Time: 07:45:23 PM PST US From: "LarryRobertHelming" Subject: Re: RV-List: horiz. snorkel and cowling clearance I did the same thing. You need to remove some of the snorkel to make it shorter. Larry in Indiana ----- Original Message ----- From: Paul Rice To: rv-list@matronics.com Sent: Wednesday, March 07, 2007 10:33 AM Subject: RV-List: horiz. snorkel and cowling clearance Hey guys, I just fit my horiz. induction snorkel to the engin and baffling, but when I put the cowl bottom cowl on, it touches the lower front part of the snorkel. Any suggestions, or am I just going to have to cut out a piece out of the snorkel and make it smaller. Thanks in advance, Paul ________________________________ Message 9 _____________________________________ Time: 08:54:02 PM PST US From: "Paul Rice" Subject: Re: RV-List: horiz. snorkel and cowling clearance Thanks Larry, Just wanted to make sure I wasn't the only one that ever had this problem. Paul ----- Original Message ----- From: LarryRobertHelming To: rv-list@matronics.com Sent: Wednesday, March 07, 2007 10:44 PM Subject: Re: RV-List: horiz. snorkel and cowling clearance I did the same thing. You need to remove some of the snorkel to make it shorter. Larry in Indiana ----- Original Message ----- From: Paul Rice To: rv-list@matronics.com Sent: Wednesday, March 07, 2007 10:33 AM Subject: RV-List: horiz. snorkel and cowling clearance Hey guys, I just fit my horiz. induction snorkel to the engin and baffling, but when I put the cowl bottom cowl on, it touches the lower front part of the snorkel. Any suggestions, or am I just going to have to cut out a piece out of the snorkel and make it smaller. Thanks in advance, Paul href="http://www.matronics.com/Navigator?RV-List">http://www.matronics. com/Navigator?RV-List href="http://forums.matronics.com">http://forums.matronics.com http://www.matronics.com/Navigator?RV-List ________________________________ Message 10 ____________________________________ Time: 08:54:02 PM PST US From: "Darwin N. Barrie" Subject: RV-List: Headset rant I gotta go with the gentleman that mentioned the Clarity Aloft. I have those and could not imagine going back to conventional headset. I've worn the Bose and they are nice but they still are a headset. With the Clarity you have no issues with sunglasses, hats or the clamping force that gets old after a while. With the Bose you are paying $500 for the headset and $500 for the name!!! DArwin N. Barrie Chandler AZ RV7 N717EE ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-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/rv-list Browse Digests http://www.matronics.com/digest/rv-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.