---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Sun 02/14/10: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:47 AM - Larger alternator 30 Amp (chris Sinfield) 2. 08:03 AM - Re: Larger alternator 30 Amp (Larzfromarz) 3. 10:09 AM - Re: Larger alternator 30 Amp (Craig Payne) 4. 10:34 AM - Re: Larger alternator 30 Amp (Rob Turk) 5. 12:06 PM - Re: 2200 timing (xair899) ________________________________ Message 1 _____________________________________ Time: 01:47:58 AM PST US Subject: JabiruEngine-List: Larger alternator 30 Amp From: "chris Sinfield" Hi has anyone fitted a 30/40amp alternator on a Jab3300? Someone once showed me a picture of one on the vacum pump drive but did not say if it was successful. I am doing my elec loads and so far over 30 amps needed. Chris. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286361#286361 ________________________________ Message 2 _____________________________________ Time: 08:03:22 AM PST US Subject: JabiruEngine-List: Re: Larger alternator 30 Amp From: "Larzfromarz" Chris - I'd be curious as the list of equipment (and thus loads). With a 20% margin (results in 24 amp load- continuous) it would seem difficult to reach that limit with most modern electrical equip, especially with a fixed gear aircraft with no air-conditioning. Just curious as many folks ignore the process of summing the electrical loads and I am happy to see that you are. Don't forget to classify loads as intermittent and continuous. Thanks, Larry Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286390#286390 ________________________________ Message 3 _____________________________________ Time: 10:09:13 AM PST US From: "Craig Payne" Subject: RE: JabiruEngine-List: Larger alternator 30 Amp I recall asking about running an alternator off of the vacuum pump drive a while ago. One comment was that the (direct) drive didn't turn fast enough to produce adequate current. In a conventional setup with a pulley the smaller pulley on the alternator makes it turn faster than the crank. Check the specs of the alternator before you dive in. If you have purchased your electrical gear yet it may be simpler, more reliable and cheaper for find electronics and lighting that draws less. Some of the LED lighting, radios and EFIS draw less than their predecessors. -- Craig -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of chris Sinfield Sent: Sunday, February 14, 2010 1:47 AM Subject: JabiruEngine-List: Larger alternator 30 Amp --> Hi has anyone fitted a 30/40amp alternator on a Jab3300? Someone once showed me a picture of one on the vacum pump drive but did not say if it was successful. I am doing my elec loads and so far over 30 amps needed. Chris. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286361#286361 ________________________________ Message 4 _____________________________________ Time: 10:34:15 AM PST US From: "Rob Turk" Subject: Re: JabiruEngine-List: Larger alternator 30 Amp Over at the Yahoo group there are some pictures of someone who fabricated a pulley on the vacuum pump drive and attached a 45 Amp alternator. If you have an account, see these pictures: http://groups.yahoo.com/group/jabiruengines/photos/album/1487153759/pic/list Rob ----- Original Message ----- From: "chris Sinfield" Sent: Sunday, February 14, 2010 10:47 AM Subject: JabiruEngine-List: Larger alternator 30 Amp > > > Hi > has anyone fitted a 30/40amp alternator on a Jab3300? Someone once showed > me a picture of one on the vacum pump drive but did not say if it was > successful. I am doing my elec loads and so far over 30 amps needed. > Chris. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=286361#286361 > > > ________________________________ Message 5 _____________________________________ Time: 12:06:42 PM PST US Subject: JabiruEngine-List: Re: 2200 timing From: "xair899" A simple check for ignition timing which isn't precise but will show gross errors. Can't claim credit for it, thank Roger Lewis. Remove a spark plug from no 1 cylinder and place a finger over the hole, rotate the prop slowly in the correct sense. When you feel compression you are near TDC for the firing stroke. Gently put a thin screwdriver in the spark plug hole to feel when the piston reaches TDC. It will take a few goes as there is a dead space at the peak. If you have a dial gauge you can use the method in the manual. On the flywheel the two magnet centers will be at the 9:30 and 3:30 clock positions. Mark a tooth against some reference point, then rotate the prop slowly backwards and count the number of flywheel teeth required to center of the magnets exactly on the coils. The flywheel has 101 teeth (99 on older engines), so 1 tooth is roughly 3.6 degrees. 25 degrees / 3.6 = just under 7 teeth. Nick Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286419#286419 ------------------------------------------------------------------------------------- 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.