---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sun 06/10/12: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:01 AM - Re: Bleeding brakes - best Method? (Paul Mulwitz) 2. 08:16 AM - Re: Bleeding brakes - best Method? (FLYaDIVE) 3. 04:37 PM - upper bearing (Carlos Sa) 4. 06:32 PM - Re: upper bearing (Craig Payne) 5. 06:38 PM - Re: upper bearing (n801bh@netzero.com) 6. 08:14 PM - Re: Bleeding brakes - best Method? () 7. 08:20 PM - Re: Bleeding brakes - best Method? (FLYaDIVE) 8. 08:29 PM - Re: upper bearing (Larry McFarland) 9. 08:46 PM - Re: upper bearing (Carlos Sa) ________________________________ Message 1 _____________________________________ Time: 01:01:56 AM PST US From: Paul Mulwitz Subject: Re: Zenith-List: Bleeding brakes - best Method? What ever you say, Barry. I suppose you are one of those guys who jumps up in your seat to help the plane get off the ground after rotating? Paul On 6/9/2012 9:15 PM, FLYaDIVE wrote: > Hi Paul: > > If you think about it -.-.- It is very logical. > Cars are ground bound vehicles. Gravity works in a downward direction > pulling to the center of the earth. So, by pumping the brake fluid > from the top down you aid in keeping the car on the ground. > Planes are always trying to break the surly bonds of earth and by > pumping the brake fluid up, you aid in reducing the effects of gravity > and lightening the plane. > > Simple huh! > > Barry ________________________________ Message 2 _____________________________________ Time: 08:16:30 AM PST US Subject: Re: Zenith-List: Bleeding brakes - best Method? From: FLYaDIVE Ah Paul... We all know that does not work. What I do is eat a light breakfast for the flight out and for lunch I drink seltzer because the bubbles go UP and the bubbles expand as the altitude increases. Making the plane lighter. Simple physics! Barry ========================= On Sun, Jun 10, 2012 at 4:00 AM, Paul Mulwitz wrote: > > What ever you say, Barry. > > I suppose you are one of those guys who jumps up in your seat to help the > plane get off the ground after rotating? > > Paul > > > On 6/9/2012 9:15 PM, FLYaDIVE wrote: > >> Hi Paul: >> >> If you think about it -.-.- It is very logical. >> Cars are ground bound vehicles. Gravity works in a downward direction >> pulling to the center of the earth. So, by pumping the brake fluid from >> the top down you aid in keeping the car on the ground. >> Planes are always trying to break the surly bonds of earth and by pumping >> the brake fluid up, you aid in reducing the effects of gravity and >> lightening the plane. >> >> Simple huh! >> >> Barry >> > > ________________________________ Message 3 _____________________________________ Time: 04:37:33 PM PST US From: Carlos Sa Subject: Zenith-List: upper bearing Hello, all I am working on the (CH601-HD) firewall, and I am doing some changes based on the XL and the 750 firewall. The addition of the plastic upper bearing is causing me a bit of concern. In my case, the bearing interferes with rivets placed through 6F10-2 (the original CH601-HD upper bearing) and 6F8-2 (firewall stiffener). These parts can be sen on page 11 of this document: http://www.zenithair.com/pdf-doc/601-firewall-gear-rib.pdf I am using UHDMW (or some such mix of letters) 3/8" thick. I cut notches to clear the rivets. What is bugging me is that I could not find any comments about this interference, so maybe I am doing something incredibly wrong (I am not content with doing anything just "credibly" wrong). My "notched" upper bearing can be seen here: http://www.flickr.com/photos/54366879@N06/7359287022/ These notches might be weakening the part to a point where it will easily brake and be ineffective, reason why I am planning on a duplicate (no notches) installed on top of it. Comments, anyone? Carlos CH601-HD http://www.zenith.aero/photo/img-6037 ________________________________ Message 4 _____________________________________ Time: 06:32:34 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: upper bearing Short answer: don't' worry Long answer: Don't worry for a number of reasons: - Try and break a sample of that material. Clamp half the length in a vise, put an adjustable wrench on the other half and bend it at a 90 degree angle. - it is a bearing, not a structural element. The side load is relatively small and spread across the thickness of the material. And the load is trying to compress or elongate the material, not split it. - I did the same (but only for two rivets as I recall) - I only see two bolt holes in your bearing, On the 601XL and 701 there are four. See here: http://www.zenithair.com/zodiac/xl/data/6-b-07.pdf This being the Internet someone will immediately disagree with me. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Carlos Sa Sent: Sunday, June 10, 2012 3:14 PM zenith750-list@matronics.com Subject: Zenith-List: upper bearing Hello, all I am working on the (CH601-HD) firewall, and I am doing some changes based on the XL and the 750 firewall. The addition of the plastic upper bearing is causing me a bit of concern. In my case, the bearing interferes with rivets placed through 6F10-2 (the original CH601-HD upper bearing) and 6F8-2 (firewall stiffener). These parts can be sen on page 11 of this document: http://www.zenithair.com/pdf-doc/601-firewall-gear-rib.pdf I am using UHDMW (or some such mix of letters) 3/8" thick. I cut notches to clear the rivets. What is bugging me is that I could not find any comments about this interference, so maybe I am doing something incredibly wrong (I am not content with doing anything just "credibly" wrong). My "notched" upper bearing can be seen here: http://www.flickr.com/photos/54366879@N06/7359287022/ These notches might be weakening the part to a point where it will easily brake and be ineffective, reason why I am planning on a duplicate (no notches) installed on top of it. Comments, anyone? Carlos CH601-HD http://www.zenith.aero/photo/img-6037 ________________________________ Message 5 _____________________________________ Time: 06:38:59 PM PST US From: "n801bh@netzero.com" Subject: Re: Zenith-List: upper bearing Nice job on carving the piece out..... Altho it does like kinda fragile , that stuff is tough and properly fastened it will perform perfectly... IMHO. do not archive Ben Haas N801BH www.haaspowerair.com ---------- Original Message ---------- From: Carlos Sa th750-list@matronics.com Subject: Zenith-List: upper bearing Hello, allI am working on the (CH601-HD) firewall, and I am doing some c hanges based on the XL and the 750 firewall.The addition of the plastic upper bearing is causing me a bit of concern.In my case, the bearing int erferes with rivets placed through 6F10-2 (the original CH601-HD upper b earing) and 6F8-2 (firewall stiffener).These parts can be sen on page 11 of this document: http://www.zenithair.com/pdf-doc/601-firewall-gear-ri b.pdfI am using UHDMW (or some such mix of letters) 3/8" thick.I cut not ches to clear the rivets.What is bugging me is that I could not find any comments about this interference, so maybe I am doing something incredi bly wrong (I am not content with doing anything just "credibly" wrong).M y "notched" upper bearing can be seen here: http://www.flickr.com/photos /54366879@N06/7359287022/These notches might be weakening the part to a point where it will easily brake and be ineffective, reason why I am pla nning on a duplicate (no notches) installed on top of it. Comments, anyone?CarlosCH601-HDhttp://www.zenith.aero/photo/img-6037 ======================== ======================== ======================== ======================== ======================== ======================== ========= ____________________________________________________________ 53 Year Old Mom Looks 33 The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried http://thirdpartyoffers.netzero.net/TGL3241/4fd54894b59731d1b4ast05vuc ________________________________ Message 6 _____________________________________ Time: 08:14:01 PM PST US From: Subject: Re: Zenith-List: Bleeding brakes - best Method? Actually, gentlemen, the answer should be quite obvious. For best takeoff and general performance, when you get in the plane, never put your full weight down! Paul R ----- Original Message ----- From: Paul Mulwitz To: zenith-list@matronics.com Sent: Sunday, June 10, 2012 3:00 AM Subject: Re: Zenith-List: Bleeding brakes - best Method? > What ever you say, Barry. I suppose you are one of those guys who jumps up in your seat to help the plane get off the ground after rotating? Paul On 6/9/2012 9:15 PM, FLYaDIVE wrote: > Hi Paul: > > If you think about it -.-.- It is very logical. > Cars are ground bound vehicles. Gravity works in a downward direction > pulling to the center of the earth. So, by pumping the brake fluid > from the top down you aid in keeping the car on the ground. > Planes are always trying to break the surly bonds of earth and by > pumping the brake fluid up, you aid in reducing the effects of gravity > and lightening the plane. > > Simple huh! > > Barry http://www.matronics.com/Navigator?Zenith-List http://www.matronics.com/contribution ________________________________ Message 7 _____________________________________ Time: 08:20:46 PM PST US Subject: Re: Zenith-List: Bleeding brakes - best Method? From: FLYaDIVE Paul: You are correct... That is why we have Light Sport Aviation. When people were forced to go to the M.E. they never put their "full weight down". Barry On Sun, Jun 10, 2012 at 11:13 PM, wrote: > ** > Actually, gentlemen, the answer should be quite obvious. For best > takeoff and general performance, when you get in the plane, never put your > full weight down! > > Paul R > > ----- Original Message ----- > *From:* Paul Mulwitz > *To:* zenith-list@matronics.com > *Sent:* Sunday, June 10, 2012 3:00 AM > *Subject:* Re: Zenith-List: Bleeding brakes - best Method? > > > What ever you say, Barry. > > I suppose you are one of those guys who jumps up in your seat to help > the plane get off the ground after rotating? > > Paul > > On 6/9/2012 9:15 PM, FLYaDIVE wrote: > > Hi Paul: > > > > If you think about it -.-.- It is very logical. > > Cars are ground bound vehicles. Gravity works in a downward direction > > pulling to the center of the earth. So, by pumping the brake fluid > > from the top down you aid in keeping the car on the ground. > > Planes are always trying to break the surly bonds of earth and by > > pumping the brake fluid up, you aid in reducing the effects of gravity > > and lightening the plane. > > > > Simple huh! > > > > nbsp; Features Chat, http://www.matronnbsp; via the Web > title=http://forums.matronics.com/ > href="http://forums.matronics.com">http://forums.matronics.com > _p; generous bsp; title > http://www.matronics.com/contribution href=" > http://www.matronics.com/contribution"> > http://www.matronics.com/c================ > > > * > > * > > ________________________________ Message 8 _____________________________________ Time: 08:29:59 PM PST US From: "Larry McFarland" Subject: RE: Zenith-List: upper bearing Hi Carlos, I had the same situation concerning fracture of the plastic which occurred at my nose gear bearings. To reduce the possibility of Compression fracture, I added an aluminum shim that spread the compression of the fasteners that held the piece in place. It worked. Also the holes for rivets could just as well have been a soft gasket material between the bearing and the support to take up the thickness of the rivet heads or bottoms. If these were pulled rivets, it might be better to revert to using compression rivets to thin the impressions. See link, www.macsmachine.com/images/gear/full/upbrg.gif Larry McFarland 601HDS at www.macsmachine.com From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Carlos Sa Sent: Sunday, June 10, 2012 5:14 PM zenith750-list@matronics.com Subject: Zenith-List: upper bearing Hello, all I am working on the (CH601-HD) firewall, and I am doing some changes based on the XL and the 750 firewall. The addition of the plastic upper bearing is causing me a bit of concern. In my case, the bearing interferes with rivets placed through 6F10-2 (the original CH601-HD upper bearing) and 6F8-2 (firewall stiffener). These parts can be sen on page 11 of this document: http://www.zenithair.com/pdf-doc/601-firewall-gear-rib.pdf I am using UHDMW (or some such mix of letters) 3/8" thick. I cut notches to clear the rivets. What is bugging me is that I could not find any comments about this interference, so maybe I am doing something incredibly wrong (I am not content with doing anything just "credibly" wrong). My "notched" upper bearing can be seen here: http://www.flickr.com/photos/54366879@N06/7359287022/ These notches might be weakening the part to a point where it will easily brake and be ineffective, reason why I am planning on a duplicate (no notches) installed on top of it. Comments, anyone? Carlos CH601-HD http://www.zenith.aero/photo/img-6037 ________________________________ Message 9 _____________________________________ Time: 08:46:52 PM PST US From: Carlos Sa Subject: Re: Zenith-List: upper bearing Hello, Larry You make good points. I like the idea of solid rivets - I could also set the (pop) rivet from inside, but getting the riveter in that tight space might be a problem. A solid rivet, installed with a squeezer, would work nicely... And once again, I owe you one! Actually, I owe you two: I just finished bending the upper longerons using your setup. I even managed to get the same wheels as the one you used. It worked beautifully! Best Carlos On 10 June 2012 23:27, Larry McFarland wrote: > Hi Carlos,**** > > I had the same situation concerning fracture of the plastic which occurred > at my nose gear bearings. To reduce the possibility of **** > > Compression fracture, I added an aluminum shim that spread the compression > of the fasteners that held the piece in place. It worked.**** > > Also the holes for rivets could just as well have been a soft gasket > material between the bearing and the support to take up the thickness**** > > of the rivet heads or bottoms. If these were pulled rivets, it might be > better to revert to using compression rivets to thin the impressions.**** > > See link, www.macsmachine.com/images/gear/full/upbrg.gif**** > > ** ** > > Larry McFarland 601HDS at www.macsmachine.com**** > > ** ** > > ** ** > > ** ** > > *From:* owner-zenith-list-server@matronics.com [mailto: > owner-zenith-list-server@matronics.com] *On Behalf Of *Carlos Sa > *Sent:* Sunday, June 10, 2012 5:14 PM > *To:* zenith-list@matronics.com; zenith601-list@matronics.com; > zenith750-list@matronics.com > *Subject:* Zenith-List: upper bearing**** > > ** ** > > Hello, all > > > I am working on the (CH601-HD) firewall, and I am doing some changes based > on the XL and the 750 firewall. > > The addition of the plastic upper bearing is causing me a bit of concern. > In my case, the bearing interferes with rivets placed through 6F10-2 (the > original CH601-HD upper bearing) and 6F8-2 (firewall stiffener). > These parts can be sen on page 11 of this document: > http://www.zenithair.com/pdf-doc/601-firewall-gear-rib.pdf > I am using UHDMW (or some such mix of letters) 3/8" thick. > I cut notches to clear the rivets. > > What is bugging me is that I could not find any comments about this > interference, so maybe I am doing something incredibly wrong (I am not > content with doing anything just "credibly" wrong). > My "notched" upper bearing can be seen here: > http://www.flickr.com/photos/54366879@N06/7359287022/ > These notches might be weakening the part to a point where it will easily > brake and be ineffective, reason why I am planning on a duplicate (no > notches) installed on top of it. > > Comments, anyone? > > > Carlos > CH601-HD > http://www.zenith.aero/photo/img-6037 > > > **** > > * * > > * * > > ** > > ** > > ** > > ** > > ** > > *http://www.matronics.com/Navigator?Zenith-List* > > ** > > ** > > *http://forums.matronics.com* > > ** > > ** > > ** > > ** > > *http://www.matronics.com/contribution* > > ** > > * * > > * > > * > > ------------------------------------------------------------------------------------- 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.