---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Tue 10/03/17: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:27 AM - Re: Re: WON'T START (JON) 2. 06:33 AM - Re: Re: WON'T START (dabear@damned.org) 3. 07:08 AM - Re: Re: WON'T START (Javier Carrasco) 4. 03:03 PM - Re: WON'T START (Bill1200) 5. 03:09 PM - Re: WON'T START (LawnDart) 6. 03:44 PM - Re: Re: WON'T START (Byron Fox) 7. 04:30 PM - Remote oil filter (Looigi) 8. 05:11 PM - Re: Remote oil filter (stephen.hayne) 9. 05:18 PM - CJ6 gross weight (Flibob) 10. 06:26 PM - Re: CJ6 gross weight (Walter Lannon) 11. 06:35 PM - Re: CJ6 gross weight (ggg6@att.net) ________________________________ Message 1 _____________________________________ Time: 05:27:53 AM PST US From: JON Subject: Re: Yak-List: Re: WON'T START Thanks Walt. I won't attempt to speculate on the over priming, but because of the possibility of hydraulic lock from fuel I pull the prop thru about 3 -4 times after each prime... even on thru flights. JB ----- Original Message ----- From: "Walter Lannon" Sent: Monday, October 2, 2017 5:51:57 PM Subject: Re: Yak-List: Re: WON'T START Hi Jon; The CJ primer is essentially identical to it=99s Russian counterpart. It is the CJ fuel system that is different in that the Emergency fuel supp ly is provided by a hand operated wobble pump. As a result there is no need for the second function of the primer unit (Emergency fuel pump). With the simple addition of a jumper line (by the factory) connecting the two outpu t ports it became an engine primer only from either side. No, it does not change the output fuel quantity. Could be converted to work in the =9852 system by simply removing the jumper. After reading about Bill Dykes starting problems I wonder if over-priming m ay have something to do with it and if everyone involved is fully aware of the danger of hydraulic lock from that source. Walt From: JON Sent: Monday, October 02, 2017 1:13 PM Subject: Re: Yak-List: Re: WON'T START With all the discussion about the primer on a YAK... I have this question a bout the primer on the CJ: How does rotating the primer counterclockwise or clockwise on a CJ differ? I'd heard that clockwise doubles the amount of f uel...true? JB ----- Original Message ----- From: "Bill1200" Sent: Monday, October 2, 2017 2:52:40 PM Subject: Yak-List: Re: WON'T START Update Checked spark at ignition coil wire, great bright blue spark up to 1/2 inch away from engine block so don't think that is the problem. Cleaned all con tacts inside the cap and points So, now I will check the plug gaps as noted above. How do I check to make s ure the spark from the coil wire is getting to the plugs? Don't think it's a fuel problem either, gets plenty of gas coming out of in take drain after priming Stumped!!!!!!!! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473269#473====== ================== Virus-free. www.avast.com ________________________________ Message 2 _____________________________________ Time: 06:33:12 AM PST US Subject: Re: Yak-List: Re: WON'T START From: "dabear@damned.org" Pull the prop through about 9-12 times (3 bladed prop). Then prime. Then Start. If you really want to get a work out... Pull the prop through Then prime one shot pull a blade then prime one shot pull a blade then prime one shot pull a blade Then start. Either works if the engine is timed right and you haven't over/under primed. The engine should start after two blades have gone by or you have done something wrong in the process/engine is not setup correct. Bear On 10/3/2017 8:26 AM, JON wrote: > Thanks Walt.=C2- I won't attempt to speculate on the over priming, bu t > because of the possibility of hydraulic lock from fuel I pull the prop > thru about 3-4 times after each prime... even on thru flights.=C2- JB > > > ----------------------------------------------------------------------- - > *From: *"Walter Lannon" > *To: *yak-list@matronics.com > *Sent: *Monday, October 2, 2017 5:51:57 PM > *Subject: *Re: Yak-List: Re: WON'T START > > Hi Jon; > The CJ primer is essentially identical to it=99s Russian counterp art. It > is the CJ fuel system that is different in that the Emergency fuel > supply is provided by a hand operated wobble pump.=C2-=C2- As a res ult there > is no need for the second function of the primer unit (Emergency fuel > pump).=C2-=C2- With the simple addition of a jumper line (by the fa ctory) > connecting the two output ports it became an engine primer only from > either side.=C2- No, it does > not change the output fuel quantity. > Could be converted to work in the =9852 system by simply removing the > jumper. > After reading about Bill Dykes starting problems I wonder if > over-priming may have something to do with it and if everyone involved > is fully aware of the danger of hydraulic lock from that source. > Walt > *From:* JON > *Sent:* Monday, October 02, 2017 1:13 PM > *To:* Yak-List > *Subject:* Re: Yak-List: Re: WON'T START > With all the discussion about the primer on a YAK... I have this > question about the primer on the CJ:=C2- How does rotating the primer > counterclockwise or clockwise on a CJ differ?=C2- I'd heard that > clockwise doubles the amount of fuel...true?=C2- JB > ----------------------------------------------------------------------- - > *From: *"Bill1200" > *To: *yak-list@matronics.com > *Sent: *Monday, October 2, 2017 2:52:40 PM > *Subject: *Yak-List: Re: WON'T START > Update > Checked spark at ignition coil wire, great bright blue spark up to 1/2 > inch away from engine block so don't think that is the problem. > Cleaned all contacts inside the cap and points > So, now I will=C2- check the plug gaps as noted above. How do I check to > make sure the spark from the coil wire is getting to the plugs? > Don't think it's a fuel problem either, gets plenty of gas coming out > of intake drain after priming > Stumped!!!!!!!! > > Read this topic online here: > http://forums.matronics.com/viewtopic.php?p=473269#473===== ================== > > > Virus-free. www.avast.com > > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > ________________________________ Message 3 _____________________________________ Time: 07:08:40 AM PST US From: Javier Carrasco Subject: Re: Yak-List: Re: WON'T START Also is probably a good time to get a mech. Involve before you actually dam age something=C2- Sent from Yahoo Mail on Android On Tue, Oct 3, 2017 at 9:41, dabear@damned.org wrote: Pull the prop through about 9-12 times (3 bladed prop). Then prime. Then Start. If you really want to get a work out... Pull the prop through Then prime one shot pull a blade then prime one shot pull a blade then prime one shot pull a blade Then start. Either works if the engine is timed right and you haven't over/under prime d. The engine should start after two blades have gone by or you have done som ething wrong in the process/engine is not setup correct.=C2- Bear On 10/3/2017 8:26 AM, JON wrote: Thanks Walt.=C2- I won't attempt to speculate on the over priming, but because of the possibility of hydraulic lock from fuel I pull the prop thru about 3-4 times after each prime... even on thru flights.=C2- JB From: "Walter Lannon" To: yak-list@matronics.com Sent: Monday, October 2, 2017 5:51:57 PM Subject: Re: Yak-List: Re: WON'T START Hi Jon; =C2- The CJ primer is essentially identical to it=99s R ussian counterpart.=C2- It is the CJ fuel system that is different in tha t the Emergency fuel supply is provided by a hand operated wobble pump.=C2 -=C2- As a result there is no need for the second function of the prime r unit (Emergency fuel pump).=C2-=C2- With the simple addition of a jum per line (by the factory) connecting the two output ports it became an engi ne primer only from either side.=C2- No, it does not change the output fu el quantity. Could be converted to work in the =9852 system by simp ly removing the jumper. =C2- After reading about Bill Dykes starting p roblems I wonder if over-priming may have something to do with it and if ev eryone involved is fully aware of the danger of hydraulic lock from that so urce. =C2- Walt From: JON Sent: Monday, October 02, 2017 1:13 PM To: Y ak-List Subject: Re: Yak-List: Re: WON'T START =C2- With all the di scussion about the primer on a YAK... I have this question about the primer on the CJ:=C2- How does rotating the primer counterclockwise or clockwis e on a CJ differ?=C2- I'd heard that clockwise doubles the amount of fuel ...true?=C2- JB =C2- =C2- From: "Bill1200" To: yak-list@matronics.com Sent: Monday, October 2, 2017 2:52:40 PM Subject: Yak-List: Re: WON'T START > =C2- Update =C2- Checked spark at ignition coil wire, great bright blue spark up to 1/2 inch away from engine block so don't think that is the problem. Cleane d all contacts inside the cap and points =C2- So, now I will=C2- check the plug gaps as noted above. How do I c heck to make sure the spark from the coil wire is getting to the plugs? =C2- Don't think it's a fuel problem either, gets plenty of gas coming o ut of intake drain after priming =C2- Stumped!!!!!!!! =C2- =C2- =C2- Read this topic online here: =C2-http://forums.matronics.com/viewtopic.php?p=473269#473==== =================== =C2- =C2- =C2- =C2- | | Virus-free. www.avast.com | ________________________________ Message 4 _____________________________________ Time: 03:03:07 PM PST US Subject: Yak-List: Re: WON'T START From: "Bill1200" Update Followed the starting procedure found in "the Definitive Pilots Operating Handbook" which is in part a translation of the Russian Handbook Basically, one prime pump for every 10 degrees below 100 degrees C So, this morning it was 68 degrees with an overnight low of 48 8 prime pumps while turning the prop, got in the plane, primed the system side 4 times, fired up immediately! Took 2 people but worth it I also followed one of the responders suggestion to gap the plugs to .018 So, that would suggest to me that it is not a serious timing or bad component problem, more likely a fuel/air mixture, cold engine issue Thanks to all Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473308#473308 ________________________________ Message 5 _____________________________________ Time: 03:09:15 PM PST US Subject: Yak-List: Re: WON'T START From: "LawnDart" How was your last compression test(s)? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473309#473309 ________________________________ Message 6 _____________________________________ Time: 03:44:27 PM PST US From: Byron Fox Subject: Re: Yak-List: Re: WON'T START Last year on a particularly chilly California morning, (yes, we do have them) I had a terrible time starting my M-14P. So seeking wisdom from the fount of all M-14P knowledge, I called Vladimir Yastremski in hopes of learning some crafty technique. Upon hearing my problem, Vlad sighed wearily, "Bleetz, vat can I say? It'z pilot error. Book saz, below 53 degrees must preheat oil. Buy heating pads for sump and oil tank. Problem solved." I did and it was. On Tue, Oct 3, 2017 at 3:02 PM, Bill1200 wrote: > > Update > > Followed the starting procedure found in "the Definitive Pilots Operating > Handbook" which is in part a translation of the Russian Handbook > > Basically, one prime pump for every 10 degrees below 100 degrees C > So, this morning it was 68 degrees with an overnight low of 48 > > 8 prime pumps while turning the prop, got in the plane, primed the system > side 4 times, fired up immediately! Took 2 people but worth it > > I also followed one of the responders suggestion to gap the plugs to .018 > > So, that would suggest to me that it is not a serious timing or bad > component problem, more likely a fuel/air mixture, cold engine issue > > Thanks to all > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=473308#473308 > > -- ... Blitz Byron M. Fox 80 Milland Drive Mill Valley, CA 94941 415-307-2405 ________________________________ Message 7 _____________________________________ Time: 04:30:23 PM PST US Subject: Yak-List: Remote oil filter From: "Looigi" Hi All, All the talk on another thread here has me thinking about our own Yak-52 here in New Zealand. It gets a bit chilly here in Christchurch during winter with temperatures often dipping into the negatives (Celsius). We have managed to mostly get the hang of starting the thing in these temperatures, but often it takes a few goes. A few of the guys on here have mentioned that they have engine heating pads on their aircraft. Could I please ask you to take some pictures and ether post them here or email me? I am interested in getting maybe getting some too. Also, does anyone have a remote filter on their Yak? As an engineer I shiver at the thought of basically unfiltered oil circulating around my engine. One of the DC3's I looked after has the Air Wolf kit fitted and boy does it work! I would get one of them or maybe one of Craig Payne's ones today, but I can't find a spot suitable to mount it. Again, can someone please post or mail a picture or two? Many thanks Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473312#473312 ________________________________ Message 8 _____________________________________ Time: 05:11:28 PM PST US Subject: Yak-List: Re: Remote oil filter From: "stephen.hayne" Here is the installation of a remote filter on my Nanchang - I'm sorry but I forget exactly where the main part was sourced, but we fabricated the mounting plate. Also, sorry the pictures are so big, but too hard to edit smaller! -------- - Dr. Stephen C. Hayne, Professor, CIS, Colorado State University __!__ _____(_)_____ 666CJ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473313#473313 Attachments: http://forums.matronics.com//files/img_0262_193.jpg http://forums.matronics.com//files/img_0168_145.jpg http://forums.matronics.com//files/img_0170_186.jpg ________________________________ Message 9 _____________________________________ Time: 05:18:29 PM PST US Subject: Yak-List: CJ6 gross weight From: "Flibob" What is the correct gross weight for the CJ? I have been using 3080 as the conversion from kilograms in my Chinese manual. I just re-done my weight and balance and several other users are using 3200 lbs. I have also heard of people using 3500 pounds. Seems to me like comic book math and Moondust but seriously if it is a higher number it would certainly make life a lot easier any answers? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473314#473314 ________________________________ Message 10 ____________________________________ Time: 06:26:18 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: CJ6 gross weight CJ6 Gross Wt. = 1400 Kg. or 3087 lbs. -----Original Message----- From: Flibob Sent: Tuesday, October 03, 2017 5:18 PM Subject: Yak-List: CJ6 gross weight What is the correct gross weight for the CJ? I have been using 3080 as the conversion from kilograms in my Chinese manual. I just re-done my weight and balance and several other users are using 3200 lbs. I have also heard of people using 3500 pounds. Seems to me like comic book math and Moondust but seriously if it is a higher number it would certainly make life a lot easier any answers? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=473314#473314 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 11 ____________________________________ Time: 06:35:28 PM PST US From: ggg6@att.net Subject: Re: Yak-List: CJ6 gross weight All the calculations I have done right from the Chinese manual converted to pounds the max gross take off weight is 3080lbs. Gary. CJ N22YK Sent from my iPad > On Oct 3, 2017, at 17:18, Flibob wrote: > > > What is the correct gross weight for the CJ? I have been using 3080 as the conversion from kilograms in my Chinese manual. I just re-done my weight and balance and several other users are using 3200 lbs. I have also heard of people using 3500 pounds. Seems to me like comic book math and Moondust but seriously if it is a higher number it would certainly make life a lot easier any answers? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=473314#473314 > > > > > > > > > ------------------------------------------------------------------------------------- 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.