---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 01/15/18: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:11 AM - Re: Brake Air leak (Craig Payne) 2. 05:41 AM - Re: Re: Brake air leak (A. Dennis Savarese) 3. 06:46 AM - Re: Brake air leak (bmsim) 4. 06:53 AM - Re: Re: Brake air leak (A. Dennis Savarese) 5. 07:38 AM - Re: Brake air leak (bmsim) 6. 11:50 AM - Re: Re: Brake air leak (A. Dennis Savarese) 7. 11:52 AM - Re: Re: Brake air leak (doug sapp) 8. 12:14 PM - Re: Re: Brake air leak (A. Dennis Savarese) 9. 03:27 PM - Re: Brake air leak (bmsim) 10. 05:07 PM - Re: Re: Brake air leak (A. Dennis Savarese) ________________________________ Message 1 _____________________________________ Time: 03:11:02 AM PST US From: Craig Payne Subject: Yak-List: Re: Brake Air leak Another useful thing to have when troubleshooting is my CJ-6 Air System guide as posted in the RPA Store/Manuals. Craig Payne ________________________________ Message 2 _____________________________________ Time: 05:41:07 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Re: Brake air leak Yes, the brake reducing valve is in the upper right of the cut-away drawing I sent you.=C2- The other two components are the brake disabling solendo id (lower right) and the brake differential valve (left side). When you said "no one seems to have kits right now", I'm assuming you did c heck with Doug Sapp, the CJ parts supplier? Dennis From: bmsim To: yak-list@matronics.com Sent: Sunday, January 14, 2018 9:02 PM Subject: Yak-List: Re: Brake air leak Thanks Dennis, so this is the reducing valve?=C2- You had said the reduci ng valve was in the upper right of your picture, and this is in the lower r ight, so just confirming before I buy a replacement (noone seems to have ki ts right now). dsavarese0812(at)bellsout wrote: > Remove the brake reducing valve and either replace it or rebuild it. That should fix your problem. > Dennis > > Sent from my iPhone > > > >=C2- On Jan 13, 2018, at 12:37 PM, bmsim=C2- wrote: > >=C2- > >=C2- > >=C2- > >=C2- I got the floor panel off and the leak is coming from a port on t he valve in the right bottom of Dennis' photo. There's a male threaded port on bottom that does not have an air line attached, and when I apply the pa rking brake, air continuously comes out that port. > >=C2- > >=C2- If the reducing valve is in the top right of the pic, what is thi s valve? Strange that it blows out that open port. I'm assuming it is there for a reason and doesn't need capped. > >=C2- > >=C2- Thanks for the help! > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- Read this topic online here: > >=C2- > >=C2- http://forums.matronics.com/viewtopic.php?p=477265#477265 > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- > >=C2- > > > > > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477290#477290 Attachments: http://forums.matronics.com//files/20180113_112200_615.jpg S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ________________________________ Message 3 _____________________________________ Time: 06:46:38 AM PST US Subject: Yak-List: Re: Brake air leak From: "bmsim" I think my leaking part may be the brake disabling valve?? It looks like the figure in the lower right, has one line coming in, one line going out, and an open unused male fitting (where the leak originates). It also has the little hangy down part like in the lower right figure. I included a picture of the part in the prior post, but it is kinda blurry. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477313#477313 Attachments: http://forums.matronics.com//files/yakleak_104.jpg ________________________________ Message 4 _____________________________________ Time: 06:53:57 AM PST US Subject: Re: Yak-List: Re: Brake air leak From: "A. Dennis Savarese" If it's coming from the brake disabling solenoid, which by the way I have never seen in over 18 years, fabricate yourself a bypass by connecting the "goes-in" line to the "goes-out" lineand remove the brake disabling solenoid from the aircraft. Secure the cannon plug when removing it from the solenoid. Dennis A. Dennis Savarese 334-546-8182 (mobile) www.yak-52.com Skype - Yakguy1 On 1/15/2018 9:46 AM, bmsim wrote: > > I think my leaking part may be the brake disabling valve?? It looks like the figure in the lower right, has one line coming in, one line going out, and an open unused male fitting (where the leak originates). It also has the little hangy down part like in the lower right figure. I included a picture of the part in the prior post, but it is kinda blurry. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=477313#477313 > > > Attachments: > > http://forums.matronics.com//files/yakleak_104.jpg > > ________________________________ Message 5 _____________________________________ Time: 07:38:32 AM PST US Subject: Yak-List: Re: Brake air leak From: "bmsim" Thanks Dennis. The disabling valve is already disabled from being active, so I'm guessing that may be why the port is unused (maybe not, I have no idea how it was disabled). It'd be nice if I could just cap that port. I know it'd be safer to bypass/remove the whole thing. What is the best option for the short piece of line and 2 fittings that I'd need? Is there a source for aluminum line, or would copper or something like that work?? Sorry if this is a dumb question. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477316#477316 ________________________________ Message 6 _____________________________________ Time: 11:50:39 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Re: Brake air leak No such thing as a dumb question.=C2- Purchase 6mm 5052 aluminum tubing from McMaster-Carr.=C2- http://www.mcma ster.com/Remove the B-Nuts and tubing from the output of the brake reducing valve and the input to the brake differential valve.=C2- Remove the slee ves and the B nuts from the original metric tubing.=C2- Fabricate a new 6 mm line from the output of the brake reducing valve to the input of the bra ke differential valve, thus bypassing the brake disabling solenoid, using t he metric B-nuts and metric sleeves you just removed from the original metr ic tubing.=C2- Make the new 5052 tubing line long enough so you can bend it as necessary.Dennis From: bmsim To: yak-list@matronics.com Sent: Monday, January 15, 2018 10:41 AM Subject: Yak-List: Re: Brake air leak Thanks Dennis. The disabling valve is already disabled from being active, s o I'm guessing that may be why the port is unused (maybe not, I have no ide a how it was disabled). It'd be nice if I could just cap that port. I know it'd be safer to bypass/remove the whole thing. What is the best opt ion for the short piece of line and 2 fittings that I'd need? Is there a so urce for aluminum line, or would copper or something like that work?? Sorry if this is a dumb question. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477316#477316 S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ________________________________ Message 7 _____________________________________ Time: 11:52:39 AM PST US From: doug sapp Subject: Re: Yak-List: Re: Brake air leak Dennis/Bmsim, An out of the kits to o/h the QS1 (brake pressure reducing valve) at tis time, but do have the complete assy in stock. Doug On Mon, Jan 15, 2018 at 5:40 AM, A. Dennis Savarese < dsavarese0812@bellsouth.net> wrote: > Yes, the brake reducing valve is in the upper right of the cut-away > drawing I sent you. The other two components are the brake disabling > solendoid (lower right) and the brake differential valve (left side). > > When you said "no one seems to have kits right now", I'm assuming you did > check with Doug Sapp, the CJ parts supplier? > > Dennis > > > ------------------------------ > *From:* bmsim > *To:* yak-list@matronics.com > *Sent:* Sunday, January 14, 2018 9:02 PM > *Subject:* Yak-List: Re: Brake air leak > > > Thanks Dennis, so this is the reducing valve? You had said the reducing > valve was in the upper right of your picture, and this is in the lower > right, so just confirming before I buy a replacement (noone seems to have > kits right now). > > > dsavarese0812(at)bellsout wrote: > > Remove the brake reducing valve and either replace it or rebuild it. > That should fix your problem. > > Dennis > > > > Sent from my iPhone > > > > > > > On Jan 13, 2018, at 12:37 PM, bmsim wrote: > > > > > > > > > > > > I got the floor panel off and the leak is coming from a port on the > valve in the right bottom of Dennis' photo. There's a male threaded port on > bottom that does not have an air line attached, and when I apply the > parking brake, air continuously comes out that port. > > > > > > If the reducing valve is in the top right of the pic, what is this > valve? Strange that it blows out that open port. I'm assuming it is there > for a reason and doesn't need capped. > > > > > > Thanks for the help! > > > > > > > > > > > > > > > Read this topic online here: > > > > > > http://forums.matronics.com/viewtopic.php?p=477265#477265 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=477290#477290 > > > Attachments: > > http://forums.matronics.com//files/20180113_112200_615.jpg > > > http://www.matronics.com/Navigsp; - MATRONICS WEB FORUMS - > http://forum - NEW MATRONICS LIST WIKI - > http://wiki.matronics.com > http://www.matronics.com/c > > ________________________________ Message 8 _____________________________________ Time: 12:14:01 PM PST US Subject: Re: Yak-List: Re: Brake air leak From: "A. Dennis Savarese" Doug, I think Bmsim said he believes the leak is coming from the brake disabling solenoid, which is between the brake reducing valve and the brake differential valve. If that's where the leak is coming from, it would be a first for me, since the only way the brake disabling solenoid dumps air pressure overboard is if it is activated, thus preventing air pressure from reaching the brake differential valve (QS2 on the CJ). If it ends up not being the brake disabling solenoid, then most definitely he should purchase the new brake reducing valve (QS2) from you. Dennis A. Dennis Savarese 334-546-8182 (mobile) www.yak-52.com Skype - Yakguy1 On 1/15/2018 2:52 PM, doug sapp wrote: > Dennis/Bmsim, > An out of the kits to o/h the QS1 (brake pressure reducing valve) at > tis time, but do have the complete assy in stock. > > Doug > > On Mon, Jan 15, 2018 at 5:40 AM, A. Dennis Savarese > > wrote: > > Yes, the brake reducing valve is in the upper right of the > cut-away drawing I sent you. The other two components are the > brake disabling solendoid (lower right) and the brake differential > valve (left side). > > When you said "no one seems to have kits right now", I'm assuming > you did check with Doug Sapp, the CJ parts supplier? > > Dennis > > > ------------------------------------------------------------------------ > *From:* bmsim > > *To:* yak-list@matronics.com > *Sent:* Sunday, January 14, 2018 9:02 PM > *Subject:* Yak-List: Re: Brake air leak > > > > > Thanks Dennis, so this is the reducing valve? You had said the > reducing valve was in the upper right of your picture, and this is > in the lower right, so just confirming before I buy a replacement > (noone seems to have kits right now). > > > dsavarese0812(at)bellsout wrote: > > Remove the brake reducing valve and either replace it or rebuild it. That should fix your > problem. > > Dennis > > > > Sent from my iPhone > > > > > > > On Jan 13, 2018, at 12:37 PM, bmsim wrote: > > > > > > > > > > > > I got the floor panel off and the leak is coming from a port on the valve in the > right bottom of Dennis' photo. There's a male threaded port on > bottom that does not have an air line attached, and when I apply > the parking brake, air continuously comes out that port. > > > > > > If the reducing valve is in the top right of the pic, what is this valve? Strange > that it blows out that open port. I'm assuming it is there for a > reason and doesn't need capped. > > > > > > Thanks for the help! > > > > > > > > > > > > > > > Read this topic online here: > > > > > > http://forums.matronics.com/viewtopic.php?p=477265#477265 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=477290#477290 > > > > Attachments: > > http://forums.matronics.com//files/20180113_112200_615.jpg > > > > http://www.matronics.com/Navigsp > ; - MATRONICS WEB FORUMS - > http://forum - NEW MATRONICS LIST WIKI - > http://wiki.matronics.com > http://www.matronics.com/c > > ________________________________ Message 9 _____________________________________ Time: 03:27:27 PM PST US Subject: Yak-List: Re: Brake air leak From: "bmsim" That is correct, it is just purging air out that open port. Thanks for the valuable info Dennis, very much appreciated! Doug, if it turns out to be something else I'll definitely purchase the replacement from you. Thank you! Brandon Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477330#477330 ________________________________ Message 10 ____________________________________ Time: 05:07:36 PM PST US Subject: Re: Yak-List: Re: Brake air leak From: "A. Dennis Savarese" What you may want to try first is disconnect the cannon plug on the brake disabling solenoid and see if the problem still exists when you squeeze the brake handle. If it does, proceed with the bypass. Dennis A. Dennis Savarese 334-546-8182 (mobile) www.yak-52.com Skype - Yakguy1 On 1/15/2018 6:27 PM, bmsim wrote: > > That is correct, it is just purging air out that open port. > > Thanks for the valuable info Dennis, very much appreciated! > > Doug, if it turns out to be something else I'll definitely purchase the replacement from you. > > Thank you! > > Brandon > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=477330#477330 > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.