---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 06/24/19: 15 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:06 AM - Re: HS-6 engine needed (Richard Goode) 2. 04:00 AM - Re: HS-6 engine needed (jay-dub) 3. 04:59 AM - Re: Re: HS-6 engine needed (Richard Goode) 4. 05:59 AM - Re: Re: HS-6 engine needed (George Coy) 5. 11:11 AM - Re: Housai engine for sale. (Michael Li-Paz) 6. 11:19 AM - Fw: Housai engine for sale. (Michael Li-Paz) 7. 01:38 PM - Re: HS-6 engine needed (jay-dub) 8. 01:52 PM - Re: HS-6 engine needed (Harv) 9. 01:53 PM - Re: Re: HS-6 engine needed (doug sapp) 10. 02:13 PM - Re: HS-6 engine needed (jay-dub) 11. 02:34 PM - Re: Re: HS-6 engine needed (doug sapp) 12. 03:53 PM - Re: What is the cylinder torque value for the nuts at the base. (woodja51) 13. 04:43 PM - Re: Re: What is the cylinder torque value for the nuts at the base. (Anthony Savarese) 14. 07:32 PM - Re: Re: What is the cylinder torque value for the nuts at the base. (Walter Lannon) 15. 11:12 PM - Re: HS-6 engine needed (jay-dub) ________________________________ Message 1 _____________________________________ Time: 03:06:32 AM PST US From: "Richard Goode" Subject: RE: Yak-List: HS-6 engine needed Well done! But of greater general interest is whether anyone can confirm that either new or overhauled engines are currently available from China? Doug Sapp seems to know everyone relevant and his view is that no engines are available! Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Marcus Bates Sent: 24 June 2019 03:54 Subject: Re: Yak-List: HS-6 engine needed Engine sold....... Sent from my iPad > On Jun 22, 2019, at 9:44 AM, Richard Goode wrote: > > --> > > To the best of my knowledge but do check with Doug Sapp there is > absolutely no possibility of getting any engines, new or overhauled, > out of China in the foreseeable future. And, because of shortage of > appropriate parts, I don't believe anyone in the West is technically > capable of doing a proper overhaul on these engines, despite their > great similarity to the Russian AI14 engine. > > Having said that, I'm sure there are people with a spare engine > sitting at the back of their hangar that could be available! > > Richard > > > RICHARD GOODE AEROBATICS > Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK > Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 > e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD > LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with > Aerometal Kft, Hungary. > > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv > Sent: 22 June 2019 12:37 > To: yak-list@matronics.com > Subject: Yak-List: HS-6 engine needed > > > Quick email for a fellow pilot and friend who is looking for a stock > cj6 engine. > Pleas advise if you have a used engine with good time remaining or > know where we could obtain an overhaulled unit, I guess China directly?? > > Thanks > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489763#489763 > > > > > > > > > > > > > ________________________________ Message 2 _____________________________________ Time: 04:00:31 AM PST US Subject: Yak-List: Re: HS-6 engine needed From: "jay-dub" Given that the HS-6 (not the A), is effectively the AI-14, how big a step would it be to uprate one to 285hp A spec? From the little research Ive done, it seems the only real difference is the carb. -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489799#489799 ________________________________ Message 3 _____________________________________ Time: 04:59:18 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Re: HS-6 engine needed According to the Russian documentation that I have, the HS-6 is "a Chinese version of the AI 14 R", which was the original Russian production engine of 1956, nominally 260 hp. Then they say that the HS-6A is a Chinese version of the AI 14 RF. This was a higher performance version, principally aimed at the Yak 18 single-seat aerobatic aircraft, and which delivered 300 hp. However they go on to say that this extra horsepower was developed only through increased rpm rather than any other modifications. I would be confident that an AI 14 adjusted to turn at around 2550 rpm (as opposed to the very modest standard maximum of 2350 rpm) would certainly produce 285 hp. Also they had very generous tolerances for the supercharger clearances, and we have found that by decreasing these tolerances, it is easy to obtain an additional 15 or so horsepower in itself. And of course these rpm figures are significantly less than the 2950 rpm (101%) which is the maximum for the M 14 P engine, of course essentially the same, albeit modified and strengthened. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of jay-dub Sent: 24 June 2019 12:00 Subject: Yak-List: Re: HS-6 engine needed Given that the HS-6 (not the A), is effectively the AI-14, how big a step would it be to uprate one to 285hp A spec? From the little research Ive done, it seems the only real difference is the carb. -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489799#489799 ________________________________ Message 4 _____________________________________ Time: 05:59:05 AM PST US From: "George Coy" Subject: RE: Yak-List: Re: HS-6 engine needed Not to change the subject ... we are looking for some HS6A mounting rings. If anyone has any available please contact me off list. George Coy MotorstarNA 714 Airport Rd. Swanton VT 05488 802-868-5633 off 802-363-5782 cell george.coy@gmail.com http://motorstarna.com/ SKYPE george.coy -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Marcus Bates Sent: Sunday, June 23, 2019 5:51 PM Subject: Re: Yak-List: Re: HS-6 engine needed I have one Housai engine that should be a good engine. It was purchased from China by my father as a zero time since overhaul. When it arrived, it was obviously not as presented. We assumed it was a + or- 600 hr. Engine. I have no logs or history on the engine, so it is being offered as is. It has mags, but no carburetor. We were going to the automotive spark plugs ignition. It has been stored in an enclosed hangar, and I am offering it as is, where is, for $3,000.00. I will palletize it and deliver to shipping company of your choice. Contact me at marcusbates@att.net or call 512-699-5455. Sent from my iPad > On Jun 22, 2019, at 6:09 PM, chrisunrau wrote: > > > I will have a used HS-6 engine available this winter, I realize that probably doesn't help but in case you are still looking come November or December mine will most likely be available. All of this pending prop strike inspection and work to be done by M14 on my other engine. The one that would be coming available I have put on temporarily to get me through the flying season, it has about 1600 hours and good compressions, runs strong. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489771#489771 > > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 11:11:53 AM PST US From: Michael Li-Paz Subject: Yak-List: Re: Housai engine for sale. Sent from my wrote: > > I'm selling my 650 hours Housai engine which I've taken of my CJ. > It for some unknown reason, developed a crack under cylinder #2, on the back housing plate. I have a replacement housing plate which you can see in the attached photo and I've been told by an overhaul shop that the engine can be dismantled and rebuilt for approx. $ 2500. Engine is in good working order with good compression and oil pressure and be good for another 1000 hours, if you continue to care for it as I did. > I'm asking $ 6,000 including the extra plate, as is, at my location. KCMA. > Michael "Pipes" Li-Paz. > > > > > > > > > > Sent from my iPad ________________________________ Message 6 _____________________________________ Time: 11:19:41 AM PST US From: Michael Li-Paz Subject: Yak-List: Fwd: Housai engine for sale. > To: yak-list@matronics.com > Subject: Housai engine for sale. > > I'm selling my 650 hours Housai engine which I've taken of my CJ. > It for some unknown reason, developed a crack under cylinder #2, on the b ack housing plate. I have a replacement housing plate which you can see in t he attached photo and I've been told by an overhaul shop that the engine can be dismantled and rebuilt for approx. $ 2500. Engine is in good working o rder with good compression and oil pressure and be good for another 1000 hou rs, if you continue to care for it as I did. > I'm asking $ 6,000 including the extra plate, as is, at my location. KCM A. > Michael "Pipes" Li-Paz. > > > > > > > > Sent from my iPad ________________________________ Message 7 _____________________________________ Time: 01:38:49 PM PST US Subject: Yak-List: Re: HS-6 engine needed From: "jay-dub" Thanks Richard. On that note, would turning up an A be feasible? Im currently discussing retuning our current engine as it runs very cool. Its very rare to see more than 170C CHT so Im assuming its stock tune for 70+ octane where we obviously run 100LL; so advancing by the timing seems the way to go. Can I safely turn up the max revs in your opinion? 2550 on 6A should easily yield a good 300hp but at what cost? -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489807#489807 ________________________________ Message 8 _____________________________________ Time: 01:52:19 PM PST US Subject: Yak-List: Re: HS-6 engine needed From: "Harv" Interesting you mention the running cool issue (which isnt good, although not as bad as running too hot) as out of the box mine ran too cool also and I put this down to the Chinese running them on really crap fuel ( I dont recall the exact banding but its recorded in my logs) and as such then going into 100LL simply sees the stock hs6 running too rich. Ive some hadthe carb adjusted and it seems happier with the added bonus of less fuel bur Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489810#489810 ________________________________ Message 9 _____________________________________ Time: 01:53:26 PM PST US From: doug sapp Subject: Re: Yak-List: Re: HS-6 engine needed Jay-dub, What is your fuel burn at cruise? Doug On Mon, Jun 24, 2019 at 1:43 PM jay-dub wrote: > > Thanks Richard. > > On that note, would =9Cturning up=9D an A be feasible? > > I=99m currently discussing retuning our current engine as it runs v ery cool. > It=99s very rare to see more than 170C CHT so I=99m assuming it=99s stock tune > for 70+ octane where we obviously run 100LL; so advancing by the timing > seems the way to go. > > Can I safely turn up the max revs in your opinion? 2550 on 6A should > easily yield a good 300hp but at what cost? > > -------- > CJ and Yak-52 owner > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489807#489807 > > =========== =========== =========== =========== =========== > > ________________________________ Message 10 ____________________________________ Time: 02:13:11 PM PST US Subject: Yak-List: Re: HS-6 engine needed From: "jay-dub" At 68/2050, 58 lph (15.3 USgph) properly leaned. At 70/2100, 67 lph (17.7 US gph), assuming the fuel flow computer is correct. -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489812#489812 ________________________________ Message 11 ____________________________________ Time: 02:34:13 PM PST US From: doug sapp Subject: Re: Yak-List: Re: HS-6 engine needed I think your over feeding it!! Ideally you should be burning 13.5 to 14.5 GPH at cruise. That may go a long way to solve your cool engine problem. Have you ever checked to see what jets you have in your carb? Check page 44 of the Maint and Service Instructions for Aero Engine HOUSAI -6A Doug On Mon, Jun 24, 2019 at 2:23 PM jay-dub wrote: > > At 68/2050, 58 lph (15.3 USgph) properly leaned. At 70/2100, 67 lph (17.7 > US gph), assuming the fuel flow computer is correct. > > -------- > CJ and Yak-52 owner > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489812#489812 > > ________________________________ Message 12 ____________________________________ Time: 03:53:21 PM PST US Subject: Yak-List: Re: What is the cylinder torque value for the nuts at the base. From: "woodja51" Following on from what a poster sent about nut torque/ wet or dry. It would appear that failure to lubricate / oil nuts when applying torque can lead to about half the torque simply being used to break thread / friction etc? 28 foot lbs on a dry nut might result in only half that value actually being applied to create clamping forces. I know these nuts are only acting in tensionso might not be 100% applicable ( as the YouTube video concerned plates in building steel etc.. but worth consideration and might be why M14P?nuts torqued this way might come loose ? Just a thought. M Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489814#489814 ________________________________ Message 13 ____________________________________ Time: 04:43:33 PM PST US From: Anthony Savarese Subject: Re: Yak-List: Re: What is the cylinder torque value for the nuts at the base. Loose cylinder base nuts are Much more common on the Huosai than the M14. M14 manual specifies dry thread torque too. Dennis Sent from my iPhone > On Jun 24, 2019, at 6:52 PM, woodja51 wrote: > > > Following on from what a poster sent about nut torque/ wet or dry. > > It would appear that failure to lubricate / oil nuts when applying torque can lead to about half the torque simply being used to break thread / friction etc? > > 28 foot lbs on a dry nut might result in only half that value actually being applied to create clamping forces. I know these nuts are only acting in tensionso might not be 100% applicable ( as the YouTube video concerned plates in building steel etc.. but worth consideration and might be why M14P?nuts torqued this way might come loose ? Just a thought. M > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489814#489814 > > > > > > > > > ________________________________ Message 14 ____________________________________ Time: 07:32:46 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Re: What is the cylinder torque value for the nuts at the base. Hi Dennis; Can you supply a copy of that manual page? Thanks; Walt -----Original Message----- From: Anthony Savarese Sent: Monday, June 24, 2019 4:42 PM Subject: Re: Yak-List: Re: What is the cylinder torque value for the nuts at the base. Loose cylinder base nuts are Much more common on the Huosai than the M14. M14 manual specifies dry thread torque too. Dennis Sent from my iPhone > On Jun 24, 2019, at 6:52 PM, woodja51 wrote: > > > Following on from what a poster sent about nut torque/ wet or dry. > > It would appear that failure to lubricate / oil nuts when applying torque > can lead to about half the torque simply being used to break thread / > friction etc? > > 28 foot lbs on a dry nut might result in only half that value actually > being applied to create clamping forces. I know these nuts are only acting > in tensionso might not be 100% applicable ( as the YouTube video concerned > plates in building steel etc.. but worth consideration and might be why > M14P?nuts torqued this way might come loose ? Just a thought. M > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489814#489814 > > --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 15 ____________________________________ Time: 11:12:56 PM PST US Subject: Yak-List: Re: HS-6 engine needed From: "jay-dub" Ill have my guys take a look. -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489821#489821 ------------------------------------------------------------------------------------- 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.