---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 07/31/17: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:07 AM - Re: Blown oil hose CJ - connectors? (Harv) 2. 09:25 AM - Re: Re: Blown oil hose CJ - connectors? (Richard Goode) 3. 09:59 AM - Re: Blown oil hose CJ - connectors? (Walter Lannon) 4. 10:42 AM - Re: Re: Blown oil hose CJ - connectors? (Walter Lannon) 5. 10:46 AM - Re: Blown oil hose CJ - connectors? (doug sapp) 6. 12:24 PM - SCOTT ANDREW SHARED A FILE (Scott Andrews) ________________________________ Message 1 _____________________________________ Time: 06:07:10 AM PST US Subject: Yak-List: Re: Blown oil hose CJ - connectors? From: "Harv" Sorry to hear! This is exactly why we have a 3 year periodic hose pressure test, of course that only goes so far though I've never heard of this happening before so is fortunately extremely rare. I do have spare main lines and some old fittings (from when i replaced my hoses with new ones) if you need something to use until your's are removed from the a/c Harv Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471362#471362 ________________________________ Message 2 _____________________________________ Time: 09:25:56 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Re: Blown oil hose CJ - connectors? We have spent a lot of time on this issue of flexible hoses. The first problem came when the Russians would only sell huge quantities of hose and very unreliable deliveries. However we realised that we could not fit good quality Western hose we decided that Aeroquip 404 was the best onto the Russian metal fittings reliably. Of course you can do what seems an adequate job, but when subject to excessive pressure and heat we found that the ends would leak or possibly worse. We spent a lot of time researching the issue, and have now developed a system to modify the Russian metal ends to take Aeroquip 404 hose, and, for that matter, repetitively in the future. Very importantly we have the authorisation to give EASA "form1" documentation for these hoses the highest European document aviation quality, and with a 10 year life. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW United Kingdom Tel: +94 (0) 81 241 5137 (Sri Lanka) Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com Im currently in Sri Lanka but this Mail is working,and my local phone is +94 779 132 160. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: Monday, July 31, 2017 6:37 PM Subject: Yak-List: Re: Blown oil hose CJ - connectors? Sorry to hear! This is exactly why we have a 3 year periodic hose pressure test, of course that only goes so far though I've never heard of this happening before so is fortunately extremely rare. I do have spare main lines and some old fittings (from when i replaced my hoses with new ones) if you need something to use until your's are removed from the a/c Harv Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471362#471362 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ________________________________ Message 3 _____________________________________ Time: 09:59:59 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: Blown oil hose CJ - connectors? After reading and re-reading your description of replacing hose end fittings I felt a reply was really necessary. "We used a pipe wrench with the hose firmly clamped into a vise" is a perfect example of how to not to do this job. This process pretty much guarantees a permanently (maybe fatally) damaged hose structure and a fitting now subject to corrosion and fatigue cracking due to pipe wrench damage. Walt -----Original Message----- From: Doug Zeissner Sent: Sunday, July 30, 2017 3:14 PM Subject: Re: Yak-List: Blown oil hose CJ - connectors? When some of mine were changed we used a pipe wrench with the hose firmly clamped into a vice. It marked them up a little but they were reusable. Sent from my iPhone > On Jul 30, 2017, at 2:44 PM, jay-dub wrote: > > > It's all happening... > > Just prior to shutdown (luckily), the hose from the engine to the oil > cooler let go just aft of the firewall but before the cockpit, resulting > in hot oil spraying out and now seeping from just about every panel and > flooding the right side of the cockpit. No injuries fortunately. > > We can replace the hose easily enough but the issue is the connectors. The > existing ones don't appear to be reusable - unless someone here knows > different. > > Are they standard AN connectors? If so, no dramas. If not, what are they > and where can I get them please? > > -------- > CJ and Yak-52 owner > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=471357#471357 > > --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 4 _____________________________________ Time: 10:42:58 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: Re: Blown oil hose CJ - connectors? Hi Richard: Are you referring specifically here to the engine oil system hoses? Or the aircraft hoses in general? If the latter I would most certainly agree. Referring here to Chinese rather than Russian I have found that the oil hoses and end fittings are virtually dimensionally identical and appear functionally interchangeable with MIL H 8794 -12 Med. Press. hose (Aeroquip 303-12 or Stratoflex 111-12). Conversion of all other hose sizes on the CJ6 are highly questionable at best. Cheers; Walt -----Original Message----- From: Richard Goode Sent: Monday, July 31, 2017 9:24 AM Subject: RE: Yak-List: Re: Blown oil hose CJ - connectors? We have spent a lot of time on this issue of flexible hoses. The first problem came when the Russians would only sell huge quantities of hose and very unreliable deliveries. However we realised that we could not fit good quality Western hose we decided that Aeroquip 404 was the best onto the Russian metal fittings reliably. Of course you can do what seems an adequate job, but when subject to excessive pressure and heat we found that the ends would leak or possibly worse. We spent a lot of time researching the issue, and have now developed a system to modify the Russian metal ends to take Aeroquip 404 hose, and, for that matter, repetitively in the future. Very importantly we have the authorisation to give EASA "form1" documentation for these hoses the highest European document aviation quality, and with a 10 year life. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW United Kingdom Tel: +94 (0) 81 241 5137 (Sri Lanka) Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com Im currently in Sri Lanka but this Mail is working,and my local phone is +94 779 132 160. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: Monday, July 31, 2017 6:37 PM Subject: Yak-List: Re: Blown oil hose CJ - connectors? Sorry to hear! This is exactly why we have a 3 year periodic hose pressure test, of course that only goes so far though I've never heard of this happening before so is fortunately extremely rare. I do have spare main lines and some old fittings (from when i replaced my hoses with new ones) if you need something to use until your's are removed from the a/c Harv Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471362#471362 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 5 _____________________________________ Time: 10:46:12 AM PST US From: doug sapp Subject: Re: Yak-List: Blown oil hose CJ - connectors? Guys, I have current manufacture date oil hose assemblies in stock. Was the failure actually a fitting failure or a hose failure? Was it a stock assembly or was it a "shop made" hose? Making hoses is akin to playing with fire unless you know what you are doing and have the right tools (proper mandrels, not pipe wrenches). Unless you fully understand the process and know how to correctly check for proper dept of hose inside the collar, "flappers" and other gotchas, you'd best leave the job to someone more experienced, personally I am not willing to accept the liability so I do not make or sell re-manufactured hoses. Doug Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sun, Jul 30, 2017 at 5:10 PM, A. Dennis Savarese < dsavarese0812@bellsouth.net> wrote: > They are definitely not AN fittings! They are metric. Remove the hose > and find a hose fabrication shop that will remove the ends off the hose and > reuse the metric nuts or give Cliff Coy a call at Border Air in Swanton, > VT. Cliff can remake the hose using your hose ends and metric hose. > 802-868-2822 <(802)%20868-2822>. > Dennis > > > ------------------------------ > *From:* jay-dub > *To:* yak-list@matronics.com > *Sent:* Sunday, July 30, 2017 4:45 PM > *Subject:* Yak-List: Blown oil hose CJ - connectors? > > > It's all happening... > > Just prior to shutdown (luckily), the hose from the engine to the oil > cooler let go just aft of the firewall but before the cockpit, resulting in > hot oil spraying out and now seeping from just about every panel and > flooding the right side of the cockpit. No injuries fortunately. > > We can replace the hose easily enough but the issue is the connectors. The > existing ones don't appear to be reusable - unless someone here knows > different. > > Are they standard AN connectors? If so, no dramas. If not, what are they > and where can I get them please? > > -------- > CJ and Yak-52 owner > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=471357#471357 > > > http://www.matronics.com/Navigator?Yak-Listp; - MATRONICS WEB > FORUMS - > http://forums.matronics.comnbsp; - NEW MATRONICS LIST WIKI - > http://www.matronics.com/contribution=================== > > ________________________________ Message 6 _____________________________________ Time: 12:24:33 PM PST US From: Scott Andrews Subject: Yak-List: SCOTT ANDREW SHARED A FILE GOOGLE DRIVE FILE SHARED View in Google Drive Free online storage for your files. Check it out. Get the Google Drive mobile app. Available for Android | iOS | Windows Google respects your privacy. To learn more, please read our Privacy Statem ent. 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