---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Mon 12/03/12: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:38 AM - Re: 912 radiator failure (John Marzulli) 2. 09:51 AM - Re: 912 radiator failure (Dan Wilde) 3. 10:16 AM - Re: 912 radiator failure (John Marzulli) 4. 01:15 PM - Re: 912 radiator failure (Dan Wilde) ________________________________ Message 1 _____________________________________ Time: 08:38:15 AM PST US Subject: Re: Zenith701801-List: 912 radiator failure From: John Marzulli I just found a crack in mine... funny timing with this discussion. This was at about 168 hours, and on the pilot's side. For those that have experienced these radiator mount failures, have the cracks developed on one side more than the other? John Marzulli http://MarzulliPhoto.net/ http://701Builder.blogspot.com/ On Tue, Nov 6, 2012 at 12:16 PM, George Inman wrote: > > > I had the tab that connects to the rubber mount of the rad. break > off. > I made tabs out of stainless steel sheet and riveted them on > It is OK after about 50hrs > > > Good point, Bud, but I'm talking about the thin aluminum bracket that > mounts on the engine block and supports the rubber mounts you speak of. > This > thin aluminum fatigue cracks. I've patched it a couple times and in still > cracks. > > -- > George H. Inman > ghinman@mts.net > > ________________________________ Message 2 _____________________________________ Time: 09:51:27 AM PST US From: Dan Wilde Subject: Re: Zenith701801-List: 912 radiator failure I just started the annual inspection of my 701 a few days ago and found that the pilot side radiator mount was cracked at the forward most fixture that bolts to the engine. There was no cracking found on the other side of the engine. I have about 260 hours on my plane. I have a new mount on order. It seems that maybe this part should be beefed up? Dan Wilde On 12/3/2012 8:37 AM, John Marzulli wrote: > I just found a crack in mine... funny timing with this discussion. > This was at about 168 hours, and on the pilot's side. > > For those that have experienced these radiator mount failures, have > the cracks developed on one side more than the other? > > John Marzulli > > http://MarzulliPhoto.net/ > http://701Builder.blogspot.com/ > > > On Tue, Nov 6, 2012 at 12:16 PM, George Inman > wrote: > > > > > > I had the tab that connects to the rubber mount of the rad. > break off. > I made tabs out of stainless steel sheet and riveted them on > It is OK after about 50hrs > > > Good point, Bud, but I'm talking about the thin aluminum bracket that > mounts on the engine block and supports the rubber mounts you > speak of. This > thin aluminum fatigue cracks. I've patched it a couple times and > in still > cracks. > > -- > George H. Inman > ghinman@mts.net > > > =================================== > om" target="_blank">www.aeroelectric.com > ooks.com" target="_blank">www.buildersbooks.com > et="_blank">www.homebuilthelp.com > ="_blank">http://www.matronics.com/contribution > le, List Admin. > =================================== > -List" > target="_blank">http://www.matronics.com/Navigator?Zenith701801-List > =================================== > http://forums.matronics.com > =================================== > > > * > > > * ________________________________ Message 3 _____________________________________ Time: 10:16:51 AM PST US Subject: Re: Zenith701801-List: 912 radiator failure From: John Marzulli I talked to Roger today. He told me they have increased the thickness of the mount. Mine is from the original "vintage" of that style of cowl, about 4 years old. The replacement costs $48 per side! Dan - that sounds like exactly the same position as where mine cracked. John Marzulli http://MarzulliPhoto.net/ http://701Builder.blogspot.com/ On Mon, Dec 3, 2012 at 9:50 AM, Dan Wilde wrote: > I just started the annual inspection of my 701 a few days ago and found > that the pilot side radiator mount was cracked at the forward most fixture > that bolts to the engine. There was no cracking found on the other side of > the engine. I have about 260 hours on my plane. > > I have a new mount on order. It seems that maybe this part should be > beefed up? > > Dan Wilde > > > On 12/3/2012 8:37 AM, John Marzulli wrote: > > I just found a crack in mine... funny timing with this discussion. This > was at about 168 hours, and on the pilot's side. > > For those that have experienced these radiator mount failures, have the > cracks developed on one side more than the other? > > John Marzulli > > http://MarzulliPhoto.net/ > http://701Builder.blogspot.com/ > > > On Tue, Nov 6, 2012 at 12:16 PM, George Inman wrote: > >> >> >> >> I had the tab that connects to the rubber mount of the rad. break >> off. >> I made tabs out of stainless steel sheet and riveted them on >> It is OK after about 50hrs >> >> >> Good point, Bud, but I'm talking about the thin aluminum bracket that >> mounts on the engine block and supports the rubber mounts you speak of. >> This >> thin aluminum fatigue cracks. I've patched it a couple times and in still >> cracks. >> >> -- >> George H. Inman >> ghinman@mts.net >> >> >> =================================== >> om" target="_blank">www.aeroelectric.com >> ooks.com" target="_blank">www.buildersbooks.com >> et="_blank">www.homebuilthelp.com >> ="_blank">http://www.matronics.com/contribution >> le, List Admin. >> =================================== >> -List" target="_blank"> >> http://www.matronics.com/Navigator?Zenith701801-List >> =================================== >> http://forums.matronics.com >> =================================== >> >> >> >> > * > > * > > > * > > * > > ________________________________ Message 4 _____________________________________ Time: 01:15:45 PM PST US From: Dan Wilde Subject: Re: Zenith701801-List: 912 radiator failure John: I ordered one for the other side just in case. The cost hurt some but if that's all my annual costs me I will be happy! Dan On 12/3/2012 10:16 AM, John Marzulli wrote: > I talked to Roger today. He told me they have increased the thickness > of the mount. Mine is from the original "vintage" of that style of > cowl, about 4 years old. > > The replacement costs $48 per side! > > Dan - that sounds like exactly the same position as where mine cracked. > > John Marzulli > > http://MarzulliPhoto.net/ > http://701Builder.blogspot.com/ > > > On Mon, Dec 3, 2012 at 9:50 AM, Dan Wilde > wrote: > > I just started the annual inspection of my 701 a few days ago and > found that the pilot side radiator mount was cracked at the > forward most fixture that bolts to the engine. There was no > cracking found on the other side of the engine. I have about 260 > hours on my plane. > > I have a new mount on order. It seems that maybe this part > should be beefed up? > > Dan Wilde > > > On 12/3/2012 8:37 AM, John Marzulli wrote: >> I just found a crack in mine... funny timing with this >> discussion. This was at about 168 hours, and on the pilot's side. >> >> For those that have experienced these radiator mount failures, >> have the cracks developed on one side more than the other? >> >> John Marzulli >> >> http://MarzulliPhoto.net/ >> http://701Builder.blogspot.com/ >> >> >> On Tue, Nov 6, 2012 at 12:16 PM, George Inman > > wrote: >> >> > >> >> >> >> I had the tab that connects to the rubber mount of the >> rad. break off. >> I made tabs out of stainless steel sheet and riveted them on >> It is OK after about 50hrs >> >> >> Good point, Bud, but I'm talking about the thin aluminum >> bracket that >> mounts on the engine block and supports the rubber mounts >> you speak of. This >> thin aluminum fatigue cracks. I've patched it a couple times >> and in still >> cracks. >> >> -- >> George H. Inman >> ghinman@mts.net >> >> >> =================================== >> om" target="_blank">www.aeroelectric.com >> >> ooks.com " >> target="_blank">www.buildersbooks.com >> >> et="_blank">www.homebuilthelp.com >> ="_blank">http://www.matronics.com/contribution >> le, List Admin. >> =================================== >> -List" >> target="_blank">http://www.matronics.com/Navigator?Zenith701801-List >> =================================== >> http://forums.matronics.com >> =================================== >> >> >> >> >> * >> >> >> * > > * > > _blank">www.aeroelectric.com > .com" target="_blank">www.buildersbooks.com > ="_blank">www.homebuilthelp.com > _blank">http://www.matronics.com/contribution > ist" target="_blank">http://www.matronics.com/Navigator?Zenith701801-List > tp://forums.matronics.com > > * > > > * > > > * ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith701801-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith701801-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/zenith701801-list Browse Digests http://www.matronics.com/digest/zenith701801-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.