---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sat 06/07/08: 24 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:29 AM - Yahoo! Auto Response (wfwilson1@yahoo.ca) 2. 07:08 AM - Re: Engine cowling placement (steve) 3. 07:12 AM - Re: Re: spark plugs and rain (steve) 4. 08:21 AM - Re: spark plugs and rain (kmccune) 5. 08:33 AM - Re: Zenith Builder (Elden Jacobson) 6. 08:37 AM - Re: Re: spark plugs and rain (steve) 7. 09:01 AM - Re: Zenith-List Digest: 21 Msgs - 06/06/08 (Scott Thatcher) 8. 09:19 AM - Re: Zenith Builder (Dave G.) 9. 10:01 AM - William Wynn Refund (LHusky@aol.com) 10. 10:18 AM - Re: Zenith Builder (Elden Jacobson) 11. 11:08 AM - Re: spark plugs and rain (kmccune) 12. 11:32 AM - Re: Engine cowling placement (Craig Payne) 13. 01:27 PM - wing stiffeners (CRONeil1@comcast.net) 14. 02:56 PM - engine mounts (Brad Cohen) 15. 03:38 PM - Re: engine mounts (Craig Payne) 16. 03:49 PM - Re: engine mounts (Jaybannist@cs.com) 17. 05:18 PM - Re: wing stiffeners (ronlee) 18. 05:18 PM - Re: engine mounts (Paul Mulwitz) 19. 07:15 PM - Caleb (Jaybannist@cs.com) 20. 07:43 PM - Re: Caleb (raymondj) 21. 07:46 PM - Re: wing stiffeners (kmccune) 22. 08:10 PM - Re: Caleb (dingfelder) 23. 08:20 PM - FW: Matco`s Wheel Bearings (Jeff) 24. 11:19 PM - My 601XL quick-build kit is listed on Barnstormers (Craig Payne) ________________________________ Message 1 _____________________________________ Time: 03:29:32 AM PST US From: wfwilson1@yahoo.ca Subject: Zenith-List: Yahoo! Auto Response I will have limited access to my mail until July 6/08. So there might be slow response. Regards Wayne ________________________________ Message 2 _____________________________________ Time: 07:08:53 AM PST US From: "steve" Subject: Re: Zenith-List: Engine cowling placement On my 3300A FWF from Jabiru Pacific required absolutely no trimming. SW ----- Original Message ----- From: "Craig Payne" Sent: Friday, June 06, 2008 8:14 PM Subject: RE: Zenith-List: Engine cowling placement > > I don't know about the O-235 cowling but with the Jabiru 3300 cowling > there > is excess at the rear of the top and bottom cowls which is trimmed off > after > fitting the front of the cowls to the prop flange. > > -- Craig > > -----Original Message----- > From: owner-zenith-list-server@matronics.com > [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Ken > Sent: Friday, June 06, 2008 8:44 PM > To: zenith-list@matronics.com > Subject: Zenith-List: Engine cowling placement > > > I just got my O-235 hanging on the 601XL. Today I laid the top cowling on > the engine and I am puzzled about the exact placement. If I lay it so > that > the rear edge of the cowling is even with the rear of the top flange on > the > firewall the front roll of the opening clears the flywheel about 1/2 an > inch. Is that the correct placement or is that too far back. Assuming > that > is the correct placement, would I put my cowling fasteners (haven't picked > them out yet, but would appreciate any recommendations) through the > firewall > flange or put them in front of the FW through the skin(s). > > Thanks in advance. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=186623#186623 > > > ________________________________ Message 3 _____________________________________ Time: 07:12:02 AM PST US From: "steve" Subject: Re: Zenith-List: Re: spark plugs and rain Trying to stay off this website cause of all the crash B.S. but as a high voltage worker I just got to say: Pure water is a non conductor. Dirt makes the electrons flow...... SW 29 years 4KV to 500KV ----- Original Message ----- From: "kmccune" Sent: Friday, June 06, 2008 8:16 PM Subject: Zenith-List: Re: spark plugs and rain > > We actually measure the conductance of the distilled water, it goes up > with time, dissimilar metals and bad luck..... But it starts at around > 2uS/cm. > Not theory at all. > > Kevin > > -------- > Mark Twain: Twenty years from now you will be more disappointed by the > things that you didn't do than by the ones you did do. So throw off the > bowlines. Sail away from the safe harbor. Catch the trade winds in your > sails. Explore. Dream. Discover. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=186627#186627 > > > ________________________________ Message 4 _____________________________________ Time: 08:21:16 AM PST US Subject: Zenith-List: Re: spark plugs and rain From: "kmccune" Hey you got me beat by 460KV what are your working with at 500KV? Kevin do not archive -------- Mark Twain: Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=186667#186667 ________________________________ Message 5 _____________________________________ Time: 08:33:37 AM PST US From: Elden Jacobson Subject: Re: Zenith-List: Zenith Builder Jerry,   Let me ask that you elaborate on "the changes to his design I have made..." that will insure  that "neither the skins or the wings on our 601 will come off."   Thanks,   Elden J. (do no archive) --- On Sat, 6/7/08, Jerry Shepard <jshep00@centurytel.net> wrote: From: Jerry Shepard <jshep00@centurytel.net> Subject: Re: Zenith-List: Zenith Builder Do you fit this profile? I complain about every thing but have no Ideas of my own.   Even though I know that al least 6 601's have had fatal crashes, 2 with the skins coming off and at least 2 with the lower spar cap failing,  I feel the airplane is just fine and it always happens to someone else.   Even though  the plans I bought show +6 and _6 "G"s I don't think there are any problems now that the designer has changed the -"G"s to -3 and reccomended a limit to the elevator - travel which may be a problem if your CG is not quite perfect.   Get the picture??? Think about it!!!!     This designer needs to step up to the plate and let those of us that are building according to his plans just what area of his design is prone to failure before his published and sold +6 -6 "G"s. and how to remedy the problem!!   I don't fit all of your criteria, and I have talked to Chris on many occasions about the changes to his design I have made.  Some are just common sense.   PS Neither the skins or the wings on our 601 will come off...Something else will fail first. ----- Original Message ----- From: roger lambert Sent: Wednesday, June 04, 2008 5:56 AM Subject: Zenith-List: Zenith Builder Do you fit this profile? 1. I'm not an aeronautical engineer, but I read alot about crashes in other types of high speed, pressurized airplanes built 30 to fifty years ago and interpolate from that to this airplane.   2. I change the thickness of the metal in one or more parts of the airplane without consideration of the distribution of the stress loads to other parts of the airplane.   3. I add doublers to various parts of the airframe  also without structural analysis.   4. I buy materials for construction, sometimes from foreign countries to save a buck- without getting certifications that the materials meet the standards.   5. I change the materials from 6061 to 2024 or some other alloy without getting information as to the appropriateness of that alloy in that part being verified.   6. I don't care what the airplane is designed for- I'm going to " yank and bank" because I could have done what Chuck Yeager did if only I had the chance. My only flight time was in  a 152.   7. My medical expired 7-8 years ago.   8. My plane hasn't been finished although I've been working on it for 5+ years. I just keep on making changes to make it better and keep me from ever having to actually fly it.   9. I'm sure I "know" more than the designer, who is fat or lazy or incompetent and is trying to hide his mistakes by refusing to help in the accident investigation and nothing, including the facts is going  to dissuade me from that knowledge. Plus, I called them once and they didn't get back to me within 30 minutes and I won't stand for being "dissed" by anybody.   10. I'm sure the FAA and NTSB are fat, lazy and incompetent and really don't care about these accidents which are surely caused by some design error and/or are in league with the designer or some tri-lateral commission to steal our precious freedoms or drain our precious bodily fluids.   11. I intend to make significant changes to the control surfaces based on a book I partially read once.   12. I never intend to go back and check the torque on bolts or cable tensions once the airplane is completed.   13. Despite all this, I fully intend to blame the designer for any incident that happens anywhere in the world for any kit ot clone ever built by anyone.   Welcome to the group.   href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 6 _____________________________________ Time: 08:37:56 AM PST US From: "steve" Subject: Re: Zenith-List: Re: spark plugs and rain Retired now. 500 KV from Arizona to San Diego... Mostly 2.4, 4, 6.9, 7.2, 12, 69, 138, 230 and deeeeeeenergized 500. When the 500 was hot you actually could stand on the ground, under the line and light a florescent bulb with induction... Today I m growing a new arm and there is a bump on my shoulder that the doctor says it has somewhat of a brain mass and three eyes. I ll be ok, cause I own a 601XL..... ----- Original Message ----- From: "kmccune" Sent: Saturday, June 07, 2008 8:18 AM Subject: Zenith-List: Re: spark plugs and rain > > Hey you got me beat by 460KV what are your working with at 500KV? > Kevin > > do not archive > > -------- > Mark Twain: Twenty years from now you will be more disappointed by the > things that you didn't do than by the ones you did do. So throw off the > bowlines. Sail away from the safe harbor. Catch the trade winds in your > sails. Explore. Dream. Discover. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=186667#186667 > > > ________________________________ Message 7 _____________________________________ Time: 09:01:40 AM PST US From: "Scott Thatcher" Subject: Zenith-List: Re: Zenith-List Digest: 21 Msgs - 06/06/08 Thanks Gary. Somewhere along the way, I have lost charging from the Alternator. I'm going to use Mark Langford's method for checking the alternator. Hopefully I'll get the problem resolved. Thanks for the input! Scott Thatcher, Palm Beach Gardens, FL 601XL with Corvair, Registered as E-LSA N601EL, http://placestofly.com, EAA203 <> Double Check your charging circuit. The voltages are too low to maintain your battery. Anything above 1100 rpm should read in the 13.0 - 14.2 range depending on what you have turned on. (Assuming a JD Dynamo ) The numbers you show are what I would expect if your were running on battery only. You might see 12.2 at slow idle. ________________________________ Message 8 _____________________________________ Time: 09:19:57 AM PST US From: "Dave G." Subject: Re: Zenith-List: Zenith Builder Perhaps given the current climate it would be best if you did that offline. While I have no doubt improvements are possible, the very notion appears to create a lot of acrimony ----- Original Message ----- From: Elden Jacobson To: zenith-list@matronics.com Sent: Saturday, June 07, 2008 12:26 PM Subject: Re: Zenith-List: Zenith Builder Jerry, Let me ask that you elaborate on "the changes to his design I have made..." that will insure that "neither the skins or the wings on our 601 will come off." Thanks, Elden J. (do no archive) --- On Sat, 6/7/08, Jerry Shepard wrote: From: Jerry Shepard Subject: Re: Zenith-List: Zenith Builder To: zenith-list@matronics.com Date: Saturday, June 7, 2008, 9:37 AM Do you fit this profile? I complain about every thing but have no Ideas of my own. Even though I know that al least 6 601's have had fatal crashes, 2 with the skins coming off and at least 2 with the lower spar cap failing, I feel the airplane is just fine and it always happens to someone else. Even though the plans I bought show +6 and _6 "G"s I don't think there are any problems now that the designer has changed the -"G"s to -3 and reccomended a limit to the elevator - travel which may be a problem if your CG is not quite perfect. Get the picture??? Think about it!!!! This designer needs to step up to the plate and let those of us that are building according to his plans just what area of his design is prone to failure before his published and sold +6 -6 "G"s. and how to remedy the problem!! I don't fit all of your criteria, and I have talked to Chris on many occasions about the changes to his design I have made. Some are just common sense. PS Neither the skins or the wings on our 601 will come off...Something else will fail first. ----- Original Message ----- From: roger lambert To: zenith-list@matronics.com Sent: Wednesday, June 04, 2008 5:56 AM Subject: Zenith-List: Zenith Builder Do you fit this profile? 1. I'm not an aeronautical engineer, but I read alot about crashes in other types of high speed, pressurized airplanes built 30 to fifty years ago and interpolate from that to this airplane. 2. I change the thickness of the metal in one or more parts of the airplane without consideration of the distribution of the stress loads to other parts of the airplane. 3. I add doublers to various parts of the airframe also without structural analysis. 4. I buy materials for construction, sometimes from foreign countries to save a buck- without getting certifications that the materials meet the standards. 5. I change the materials from 6061 to 2024 or some other alloy without getting information as to the appropriateness of that alloy in that part being verified. 6. I don't care what the airplane is designed for- I'm going to " yank and bank" because I could have done what Chuck Yeager did if only I had the chance. My only flight time was in a 152. 7. My medical expired 7-8 years ago. 8. My plane hasn't been finished although I've been working on it for 5+ years. I just keep on making changes to make it better and keep me from ever having to actually fly it. 9. I'm sure I "know" more than the designer, who is fat or lazy or incompetent and is trying to hide his mistakes by refusing to help in the accident investigation and nothing, including the facts is going to dissuade me from that knowledge. Plus, I called them once and they didn't get back to me within 30 minutes and I won't stand for being "dissed" by anybody. 10. I'm sure the FAA and NTSB are fat, lazy and incompetent and really don't care about these accidents which are surely caused by some design error and/or are in league with the designer or some tri-lateral commission to steal our precious freedoms or drain our precious bodily fluids. 11. I intend to make significant changes to the control surfaces based on a book I partially read once. 12. I never intend to go back and check the torque on bolts or cable tensions once the airplane is completed. 13. Despite all this, I fully intend to blame the designer for any incident that happens anywhere in the world for any kit ot clone ever built by anyone. Welcome to the group. href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 9 _____________________________________ Time: 10:01:19 AM PST US From: LHusky@aol.com Subject: Zenith-List: William Wynn Refund I had ordered the installation manual from WW a few weeks ago. I paid with paypal and was waiting for the manual. Today, I got back from picking up 601 parts and found that my money had been refunded to my paypal account. I cannot find any phone number to contact him. Anyone had the same thing happen? Anyone have a good phone number for him? Thanks, Larry Husky Madras, Oregon **************Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4?&NCID=aolfod00030000000002) ________________________________ Message 10 ____________________________________ Time: 10:18:10 AM PST US From: Elden Jacobson Subject: Re: Zenith-List: Zenith Builder Dave,    Your point is a good one; I will do that.   Elden J. --- On Sun, 6/8/08, Dave G. <d.goddard@ns.sympatico.ca> wrote: From: Dave G. <d.goddard@ns.sympatico.ca> Subject: Re: Zenith-List: Zenith Builder Perhaps given the current climate it would be best if you did that offline. While I have no doubt improvements are possible, the very notion appears to create a lot of acrimony ----- Original Message ----- From: Elden Jacobson Sent: Saturday, June 07, 2008 12:26 PM Subject: Re: Zenith-List: Zenith Builder Jerry,   Let me ask that you elaborate on "the changes to his design I have made..." that will insure  that "neither the skins or the wings on our 601 will come off."   Thanks,   Elden J. (do no archive) --- On Sat, 6/7/08, Jerry Shepard <jshep00@centurytel.net> wrote: From: Jerry Shepard <jshep00@centurytel.net> Subject: Re: Zenith-List: Zenith Builder Do you fit this profile? I complain about every thing but have no Ideas of my own.   Even though I know that al least 6 601's have had fatal crashes, 2 with the skins coming off and at least 2 with the lower spar cap failing,  I feel the airplane is just fine and it always happens to someone else.   Even though  the plans I bought show +6 and _6 "G"s I don't think there are any problems now that the designer has changed the -"G"s to -3 and reccomended a limit to the elevator - travel which may be a problem if your CG is not quite perfect.   Get the picture??? Think about it!!!!     This designer needs to step up to the plate and let those of us that are building according to his plans just what area of his design is prone to failure before his published and sold +6 -6 "G"s. and how to remedy the problem!!   I don't fit all of your criteria, and I have talked to Chris on many occasions about the changes to his design I have made.  Some are just common sense.   PS Neither the skins or the wings on our 601 will come off...Something else will fail first. ----- Original Message ----- From: roger lambert Sent: Wednesday, June 04, 2008 5:56 AM Subject: Zenith-List: Zenith Builder Do you fit this profile? 1. I'm not an aeronautical engineer, but I read alot about crashes in other types of high speed, pressurized airplanes built 30 to fifty years ago and interpolate from that to this airplane.   2. I change the thickness of the metal in one or more parts of the airplane without consideration of the distribution of the stress loads to other parts of the airplane.   3. I add doublers to various parts of the airframe  also without structural analysis.   4. I buy materials for construction, sometimes from foreign countries to save a buck- without getting certifications that the materials meet the standards.   5. I change the materials from 6061 to 2024 or some other alloy without getting information as to the appropriateness of that alloy in that part being verified.   6. I don't care what the airplane is designed for- I'm going to " yank and bank" because I could have done what Chuck Yeager did if only I had the chance. My only flight time was in  a 152.   7. My medical expired 7-8 years ago.   8. My plane hasn't been finished although I've been working on it for 5+ years. I just keep on making changes to make it better and keep me from ever having to actually fly it.   9. I'm sure I "know" more than the designer, who is fat or lazy or incompetent and is trying to hide his mistakes by refusing to help in the accident investigation and nothing, including the facts is going  to dissuade me from that knowledge. Plus, I called them once and they didn't get back to me within 30 minutes and I won't stand for being "dissed" by anybody.   10. I'm sure the FAA and NTSB are fat, lazy and incompetent and really don't care about these accidents which are surely caused by some design error and/or are in league with the designer or some tri-lateral commission to steal our precious freedoms or drain our precious bodily fluids.   11. I intend to make significant changes to the control surfaces based on a book I partially read once.   12. I never intend to go back and check the torque on bolts or cable tensions once the airplane is completed.   13. Despite all this, I fully intend to blame the designer for any incident that happens anywhere in the world for any kit ot clone ever built by anyone.   Welcome to the group.   href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 11 ____________________________________ Time: 11:08:02 AM PST US Subject: Zenith-List: Re: spark plugs and rain From: "kmccune" 8) notsew_evets(at)frontiern wrote: > Retired now. 500 KV from Arizona to San Diego... > Mostly 2.4, 4, 6.9, 7.2, 12, 69, 138, 230 and deeeeeeenergized 500. > When the 500 was hot you actually could stand on the ground, under the line > and light a florescent bulb with induction... > Today I m growing a new arm and there is a bump on my shoulder that the > doctor says it has somewhat of a brain mass and three eyes. > I ll be ok, cause I own a 601XL..... > --- -------- Mark Twain: Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=186686#186686 ________________________________ Message 12 ____________________________________ Time: 11:32:15 AM PST US From: "Craig Payne" Subject: RE: Zenith-List: Engine cowling placement OK but here is a shot of Jim from Jabiru Pacific trimming a cowl at the FWF class at Quality Sport Planes. He seemed to treat it as standard operating procedure. -- Craig -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of steve Sent: Saturday, June 07, 2008 8:05 AM Subject: Re: Zenith-List: Engine cowling placement On my 3300A FWF from Jabiru Pacific required absolutely no trimming. SW ----- Original Message ----- From: "Craig Payne" Sent: Friday, June 06, 2008 8:14 PM Subject: RE: Zenith-List: Engine cowling placement > > I don't know about the O-235 cowling but with the Jabiru 3300 cowling > there > is excess at the rear of the top and bottom cowls which is trimmed off > after > fitting the front of the cowls to the prop flange. > > -- Craig > > -----Original Message----- > From: owner-zenith-list-server@matronics.com > [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Ken > Sent: Friday, June 06, 2008 8:44 PM > To: zenith-list@matronics.com > Subject: Zenith-List: Engine cowling placement > > > I just got my O-235 hanging on the 601XL. Today I laid the top cowling on > the engine and I am puzzled about the exact placement. If I lay it so > that > the rear edge of the cowling is even with the rear of the top flange on > the > firewall the front roll of the opening clears the flywheel about 1/2 an > inch. Is that the correct placement or is that too far back. Assuming > that > is the correct placement, would I put my cowling fasteners (haven't picked > them out yet, but would appreciate any recommendations) through the > firewall > flange or put them in front of the FW through the skin(s). > > Thanks in advance. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=186623#186623 > > > ________________________________ Message 13 ____________________________________ Time: 01:27:24 PM PST US From: CRONeil1@comcast.net Subject: Zenith-List: wing stiffeners Greetings all, I am 9 months into buildiing a 701 and am currently working on my figrst wing. I am using the homebuilthelp video series as guidance and there is a section on adding optional wing stiffeners. Does anyone have any advise on doing this? That is a) will I wish I'd added them if I didn't, or b) will I wish I didn't add them, if I did?
Greetings all, I am 9 months into buildiing a 701 and am currently working on my figrst wing. I am using the homebuilthelp video series as guidance and there is a section on adding optional wing stiffeners. Does anyone have any advise on doing this? That is a) will I wish I'd added them if I didn't, or b) will I wish I didn't add them, if I did?
________________________________ Message 14 ____________________________________ Time: 02:56:21 PM PST US From: "Brad Cohen" Subject: Zenith-List: engine mounts I am trying to install my firewall which includes drilling the holes for the upper and lower engine mounting bolts. the contruction manual calls for 5/16" holes but the bolts that were provided by ZAC are actually 3/8" Additionally the manual shows the mounting bolts welded to the mounts but mine are loose. Has anybody else found this to be true? Would I be OK to go the larger bolts without untoward problems>??? -Brad ________________________________ Message 15 ____________________________________ Time: 03:38:32 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: engine mounts Zenith has changed the mounts at least three times. In the last two incarnations (integrated canopy pivot, triangular "BRS" mount) the bolts have been separate so you can select the right bolts for a plate mount (Jabiru) or a mount with spools (Corvair and others). If your mount will have spools you will need to choose the bolt diameter that matches the spools. What engine mount do you have? -- Craig -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Brad Cohen Sent: Saturday, June 07, 2008 3:53 PM Subject: Zenith-List: engine mounts I am trying to install my firewall which includes drilling the holes for the upper and lower engine mounting bolts. the contruction manual calls for 5/16" holes but the bolts that were provided by ZAC are actually 3/8" Additionally the manual shows the mounting bolts welded to the mounts but mine are loose. Has anybody else found this to be true? Would I be OK to go the larger bolts without untoward problems>??? -Brad ________________________________ Message 16 ____________________________________ Time: 03:49:23 PM PST US From: Jaybannist@cs.com Subject: RE: Zenith-List: engine mounts Brad, My drawings (08/05) show 3/8" bolts and 3/8" holes. I installed the bolts that came with the kit. When I decided to go with a Corvair engine, I discovered that the engine mount calls for much longer bolts. If the original ones had been welded in place, I would have been a world of hurt. I think they welded the bolts in place on the prototype for fear that they would be too hard to hold when torquing the nuts. They are hard, but not impossible to hold. Been there, done that. Some say to hold off drilling the holes until you have your mount. I drilled them where the drawings show and they worked out just fine. Jay in Dallas CH 601XL N2630J "Lil Bruiser" "Brad Cohen" wrote: > >I am trying to install my firewall which includes drilling the holes for the >upper and lower engine mounting bolts. >the contruction manual calls for 5/16" holes but the bolts that were >provided by ZAC are actually 3/8" > > ________________________________ Message 17 ____________________________________ Time: 05:18:57 PM PST US Subject: Zenith-List: Re: wing stiffeners From: "ronlee" Yes, you will be sorry if you don't add the wing stiffeners and bracing on the sides too. If you don't the sides they will oil can, especially while sitting on the runway while warming up with a quartering wind. Fellow pilots will give you a hard time about it as they can see and hear it. I added my side bracing later and will say, it's not easy getting in there to do it latter. I don't care how careful you are skinning the wings with the 16thousands aluminum it will buckle some between the normal ribs while sitting sitting on the runway, especially with the sun shining on them. I put an L angle lengthwise on the top and bottom of the ribs in my wings midway between the main and rear spar and it works well. I called Nick H. and he said that is fine. It was much easier that way as I didn't have to contour the L angles to the curvature of the wing. Many planes have something similar and it is normally called a hat section. Titan aircraft do it that way. Ron Lee -------- Ron Lee Tucson, Arizona Read this topic online here: http://forums.matronics.com/viewtopic.php?p=186727#186727 ________________________________ Message 18 ____________________________________ Time: 05:18:58 PM PST US From: Paul Mulwitz Subject: Re: Zenith-List: engine mounts Hi Brad, I had a similar problem on my XL. It seems the fittings for the longerons to firewall to engine mount had been changed from the time my prints were done until the time I ordered the fuselage kit. The change impacts not only the firewall attachment but also the hinge for the canopy rail. I didn't check with ZAC, but I am confident the larger bolts will be just fine for the engine mount attachment. I figured out how to drill the holes myself and even added a shim or two under the side of the bolt head so I could tighten the nut from the engine compartment side without holding the bolt head steady. I enlarged the holes to final size after the longerons were in position against the firewall. Good luck, Paul XL fuselage > >I am trying to install my firewall which includes drilling the holes >for the upper and lower engine mounting bolts. >the contruction manual calls for 5/16" holes but the bolts that were >provided by ZAC are actually 3/8" > >Additionally the manual shows the mounting bolts welded to the >mounts but mine are loose. > >Has anybody else found this to be true? Would I be OK to go the >larger bolts without untoward problems>??? > >-Brad ________________________________ Message 19 ____________________________________ Time: 07:15:37 PM PST US From: Jaybannist@cs.com Subject: Zenith-List: Caleb Does anyone have an e-mail address for Caleb at Zenith? Thanks in advance Jay in Dallas Do not archive ________________________________ Message 20 ____________________________________ Time: 07:43:44 PM PST US From: "raymondj" Subject: Re: Zenith-List: Caleb caleb@zenithair.com This is the one off his business card. Raymond Julian Kettle River, MN "Hope for the best, but prepare for the worst." do not archive ----- Original Message ----- From: Sent: Saturday, June 07, 2008 9:10 PM Subject: Zenith-List: Caleb > > Does anyone have an e-mail address for Caleb at Zenith? > > Thanks in advance > Jay in Dallas > Do not archive > > > -- > Checked by AVG. > 11:17 AM > > ________________________________ Message 21 ____________________________________ Time: 07:46:41 PM PST US Subject: Zenith-List: Re: wing stiffeners From: "kmccune" Buy the Canyon Surfing DVD, when you watch it you can hear the oil canning. And there are wing cam shots of the fuselage, you can see it beating. Kevin -------- Mark Twain: Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=186741#186741 ________________________________ Message 22 ____________________________________ Time: 08:10:53 PM PST US From: "dingfelder" Subject: Re: Zenith-List: Caleb E-mail for Caleb Gebhardt at Zenith caleb@zenithair.com ________________________________ Message 23 ____________________________________ Time: 08:20:19 PM PST US From: "Jeff " Subject: FW: Zenith-List: Matco`s Wheel Bearings _____ From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Clive Richards Sent: Saturday, September 29, 2007 5:28 AM Subject: Zenith-List: Matco`s Wheel Bearings As per previous report in archives Rays Matco Chinese wheel bearings have also failed 1998/1999 Kit suggest if you have Matco wheels pre 2000 you check the wheels run smoothly & if not fit a reputable make of bearing. G CBDG CH601 HD Continental 0-200 170 Hrs I received Matco wheels with my Gears and Wheels component kit. The wheels are Model W80CC-Z Size 8 Weight 8.0 with a maximum Static Load Capability of 660 Pounds. Mine were made in May of 1999. At the time, Matco was owned by an owner preparing to sell the company. I believe it was sold in 2000 to the current owner(s). I checked the bearings in mine and sure enough one of them was rough operating. I put off replacing them for a couple years, but recently I bought 6 bearings to replace the bearings in all three wheels. The bearing size is 1623DCTN in the NICE brand Inch Ball Bearings. Motion Industries did suggest substituting Chinese made bearings number 1623RS. These are INCH bearings meaning that the size is measured on the English scale, not metric. While it was easy to remove the old bearings with pressure from the opposite side, I found that simply pushing the new bearings into place was not successful. An A&P on my field got the bearings into the first wheel using heat on the wheel and a large drill press to push the bearing in place, but it was not an easy task. He grimaced and struggled with the drill press. I tried a homemade press using a threaded rod, flat washers, and nuts to try to compress the bearings into place without luck. The coarse threads on the only rod I could find were not a help. Even with heat on the wheel to expand it, when I finally got the bearing in place, it was damaged. Today I found the magic! Even though the aluminum wheel should expand at a much greater rate than the steel bearing, the answer was to freeze the bearing. Today was hot so the wheel was warm from sitting in the car. The cold bearing from the freezer slipped into the warm wheel with just a little persuasion from a wooden dowel and soft blows from a hammer. Both bearings went in within just a few minutes. Tomorrow the plane can stand on its tires again. Thanks to Rick Herndon, Clive Richards, and several others not on this email list. I may be the last one to need to address these old wheels, but hopefully this will tell the story for others. Jeff Davidson ________________________________ Message 24 ____________________________________ Time: 11:19:48 PM PST US From: "Craig Payne" Subject: Zenith-List: My 601XL quick-build kit is listed on Barnstormers I own two 601XL kits and a nearly done 701. I need time and space to finish the 701. So the QBK is on the block with optional components like the new Jabiru 3300, Jabiru USA FWF kit and Skyshop leather seats and interior. Take a look. http://www.barnstormers.com/listing.php?id=251268 AOL users, use this link: http://www.barnstor mers.com/listing.php?id=251268 -- Craig ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith-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/zenith-list Browse Digests http://www.matronics.com/digest/zenith-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.