---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Wed 10/13/10: 13 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:49 AM - Re: Re: Adjusting screw torque (James, Clive R) 2. 12:58 AM - Re: Adjusting screw torque (4aplat) 3. 01:17 AM - Re: Re: Adjusting screw torque (Rob Turk) 4. 01:33 AM - Re: Adjusting screw torque (4aplat) 5. 03:23 AM - Re: Adjusting screw torque (Lynn Matteson) 6. 09:14 AM - Re: Re: Adjusting screw torque (James, Clive R) 7. 09:25 AM - Re: Adjusting screw torque (James, Clive R) 8. 10:30 AM - Re: Adjusting screw torque (4aplat) 9. 12:46 PM - Re: Re: Adjusting screw torque (Keith Pickford) 10. 01:02 PM - Re: Re: Adjusting screw torque (James, Clive R) 11. 01:13 PM - Re: Re: Adjusting screw torque (James, Clive R) 12. 02:25 PM - Re: Adjusting screw torque (Bob Haas) 13. 11:35 PM - Re: Re: Adjusting screw torque (Rob Turk) ________________________________ Message 1 _____________________________________ Time: 12:49:19 AM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" Hello again Michel. I'm afraid the picture didn't come through, send it direct to my E mail address. I don't think there is a torque number for the adjusting screw locknut. I have heard of these breaking and usually it is because the locknut is done up too tight. People are worried the locknut will come loose but in practice if the locknut is tightened up just by feel this is sufficient. Certainly nothing like 24 ft/lbs. more like 8. Next time I have the covers off I'll try it with a torque wrench. A lot more force is needed to undo the lock nut than do go it up. Try locking and unlocking a few times with a light force. If the adjusting screw is the type that takes a hexagon wrench this weakens it so it is nothing like a normal set screw. Later ones have changed to a solid screw I think. There is too much messing about with tappet adjusting. In reality with a metal to metal head to barrel joint the tappet clearance will not change. On the very old engines when you pull up a head bolt you are often twisting the head (even at the right torque as the ally was poor). Cleaning out the bolt holes so it's a true torque to the bolt is important. The twist of the head caused locking onto the bolt shank. If you feel this the bolt hole will need clearing out. An ordinary drill will do it though there used to be talk of 'reaming' I drilled mine and they were fine. I set to 12 thou clearance and providing next time I still have more than 10 and I can get a 12 feeler gauge 'in' I don't mess with adjusting the tappet. In time there is wear in the tappet face and bush and this will need adjusting out but that is after many hours. That is when with a 12 thou feeler in the gap you can rattle the tappet. Regards, Clive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat Sent: 12 October 2010 19:38 Subject: JabiruEngine-List: Re: Adjusting screw torque --> Hi Clive I'm speaking about the screw on the Rocker Arm. Itorked the head at 24 ft.lbs but the screw broke (see the picture) MicheL Clive J wrote: > Michel, what adjusting screw do you refer to? > A screw on what? > > Regards, clive > > -- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315449#315449 ________________________________ Message 2 _____________________________________ Time: 12:58:52 AM PST US Subject: JabiruEngine-List: Re: Adjusting screw torque From: "4aplat" HI clive thank's for the answer here are the pictures (just copy and glue in your browser) http://jabiru-owner.com/images/pdf/vis01.jpg http://jabiru-owner.com/images/pdf/vis02.jpg I found the torke value in this document : http://www.jabirupacific.com/pdf/HeadTorqueValveSetting.pdf MicheL -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315527#315527 ________________________________ Message 3 _____________________________________ Time: 01:17:42 AM PST US From: "Rob Turk" Subject: Re: JabiruEngine-List: Re: Adjusting screw torque Ouch... Please read the head torque document over once more. Each time it mentions 24ft/lb it only refers to the 6 cylinder head bolts. Rob ----- Original Message ----- From: "4aplat" Sent: Wednesday, October 13, 2010 9:56 AM Subject: JabiruEngine-List: Re: Adjusting screw torque > > > HI clive > > > thank's for the answer > > here are the pictures (just copy and glue in your browser) > > http://jabiru-owner.com/images/pdf/vis01.jpg > > http://jabiru-owner.com/images/pdf/vis02.jpg > > I found the torke value in this document : > > http://www.jabirupacific.com/pdf/HeadTorqueValveSetting.pdf > > MicheL > > -------- > the French Jabiru Forum > http://jabiru-owner.com > ________________________________ Message 4 _____________________________________ Time: 01:33:47 AM PST US Subject: JabiruEngine-List: Re: Adjusting screw torque From: "4aplat" reading > Adjust the tappets when the engine is > cold. Head torqued to 24 ft lb. when cold. Carry out this adjustment after five hours of > operation and again after ten hours of operation. At the 25 hour inspection this is done > again. I supposed 24ftlb was the torque for the nut (as it is int the "tapped adjustment" paragraph MicheL (not very good in english) matronics(at)rtist.nl wrote: > Ouch... Please read the head torque document over once more. Each time it > mentions 24ft/lb it only refers to the 6 cylinder head bolts. > > Rob > > --- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315530#315530 ________________________________ Message 5 _____________________________________ Time: 03:23:47 AM PST US From: Lynn Matteson Subject: Re: JabiruEngine-List: Adjusting screw torque Clive, I just figured he was talking about the valve adjusting screw, but I thought he or someone else would clarify this. I don't know the torque setting for that screw/jam nut, as I have always just snugged them up and then added a "bit for good measure"....this is a case where us old mechanics had this "torque figure" written into our DNA. : ) Lynn Matteson Kitfox IV Speedster, taildragger Jabiru 2200, #2062 Sensenich 62"x46" Wood (summer) Electroair direct-fire ignition system Rotec TBI-40 injection Status: flying...1054 hrs (since 3-27-2006) On Oct 12, 2010, at 1:40 PM, James, Clive R wrote: > > > Michel, what adjusting screw do you refer to? > A screw on what? > > Regards, clive > > -----Original Message----- > From: owner-jabiruengine-list-server@matronics.com > [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of > 4aplat > Sent: 12 October 2010 17:40 > To: jabiruengine-list@matronics.com > Subject: JabiruEngine-List: Adjusting screw torque > > --> > > Hi > > For my #570 2200 Jab engine I'm looking for the torque I'm supposed to > apply on the adjusting screw > > I'm not able to found it in the "J2200 Engine Maintenance Solid Valve > Lifter Models Manual" > > thanks in advance > > MicheL > > > -------- > the French Jabiru Forum > http://jabiru-owner.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=315432#315432 > > ________________________________ Message 6 _____________________________________ Time: 09:14:23 AM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" Indeed the wording is not good. Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I believe it's 18, 20 and 24 depending on which engine you have (I maybe wrong about the 18, I only have a 2000 and a 2003 manual here). Regards, Clive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat Sent: 13 October 2010 09:31 Subject: JabiruEngine-List: Re: Adjusting screw torque --> reading > Adjust the tappets when the engine is cold. Head torqued to 24 ft lb. > when cold. Carry out this adjustment after five hours of operation and > again after ten hours of operation. At the 25 hour inspection this is > done again. I supposed 24ftlb was the torque for the nut (as it is int the "tapped adjustment" paragraph MicheL (not very good in english) matronics(at)rtist.nl wrote: > Ouch... Please read the head torque document over once more. Each time it > mentions 24ft/lb it only refers to the 6 cylinder head bolts. > > Rob > > --- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315530#315530 ________________________________ Message 7 _____________________________________ Time: 09:25:13 AM PST US Subject: RE: JabiruEngine-List: Adjusting screw torque From: "James, Clive R" 'nip it up, and a bit' I do know of a plane that ended up upside down in a field, one of the tappet adjusters worked loose and the valve stopped opening. Power dropped off, 2 POB, couldn't maintain altitude, long crop. Bingo. I always assumed the nut must have been missed rather than not done up enough but we'll never know.... -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Lynn Matteson Sent: 13 October 2010 11:21 Subject: Re: JabiruEngine-List: Adjusting screw torque --> Clive, I just figured he was talking about the valve adjusting screw, but I thought he or someone else would clarify this. I don't know the torque setting for that screw/jam nut, as I have always just snugged them up and then added a "bit for good measure"....this is a case where us old mechanics had this "torque figure" written into our DNA. : ) Lynn Matteson Kitfox IV Speedster, taildragger Jabiru 2200, #2062 Sensenich 62"x46" Wood (summer) Electroair direct-fire ignition system Rotec TBI-40 injection Status: flying...1054 hrs (since 3-27-2006) On Oct 12, 2010, at 1:40 PM, James, Clive R wrote: > > > Michel, what adjusting screw do you refer to? > A screw on what? > > Regards, clive > > -----Original Message----- > From: owner-jabiruengine-list-server@matronics.com > [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of > 4aplat > Sent: 12 October 2010 17:40 > To: jabiruengine-list@matronics.com > Subject: JabiruEngine-List: Adjusting screw torque > > --> > > Hi > > For my #570 2200 Jab engine I'm looking for the torque I'm supposed to > apply on the adjusting screw > > I'm not able to found it in the "J2200 Engine Maintenance Solid Valve > Lifter Models Manual" > > thanks in advance > > MicheL > > > -------- > the French Jabiru Forum > http://jabiru-owner.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=315432#315432 > > ________________________________ Message 8 _____________________________________ Time: 10:30:30 AM PST US Subject: JabiruEngine-List: Re: Adjusting screw torque From: "4aplat" Hi Clive Is it possible to know where it's possible to find 18 (20 or 24) in the manual ? thanks in advance MIcheL Clive J wrote: > Indeed the wording is not good. > > Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I > believe it's 18, 20 and 24 depending on which engine you have (I maybe > wrong about the 18, I only have a 2000 and a 2003 manual here). > > Regards, Clive > > -- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315595#315595 ________________________________ Message 9 _____________________________________ Time: 12:46:51 PM PST US From: Keith Pickford Subject: Re: JabiruEngine-List: Re: Adjusting screw torque >From memory 24 ft/lb is the assembly torque - rechecks are at 20 ft/lb for head studs - Rgds Keith --- On Thu, 14/10/10, 4aplat wrote: From: 4aplat Subject: JabiruEngine-List: Re: Adjusting screw torque om> Hi Clive Is it possible to know where it's possible to find 18 (20 or 24) in the man ual ? thanks in advance MIcheL Clive J wrote: > Indeed the wording is not good. > > Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I > believe it's 18, 20 and 24 depending on which engine you have (I maybe > wrong about the 18, I only have a 2000 and a 2003 manual here). > > Regards, Clive > > -- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315595#315595 le, List Admin. ________________________________ Message 10 ____________________________________ Time: 01:02:45 PM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" Section 5.3 'Initial after 25 hours checks' in all the manuals I have here. I recall lately there is two torques, one for building the engine and one for checking afterwards. The setting in 5.3 is the one to check for. What is your serial number of the engine and what engine? 2200/3300? Regards, Clive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat Sent: 13 October 2010 18:28 Subject: JabiruEngine-List: Re: Adjusting screw torque --> Hi Clive Is it possible to know where it's possible to find 18 (20 or 24) in the manual ? thanks in advance MIcheL Clive J wrote: > Indeed the wording is not good. > > Need to be careful with 24 ft/lbs, this doesn't apply to all engines. > I believe it's 18, 20 and 24 depending on which engine you have (I > maybe wrong about the 18, I only have a 2000 and a 2003 manual here). > > Regards, Clive > > -- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315595#315595 ________________________________ Message 11 ____________________________________ Time: 01:13:31 PM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" So from the manual below, if you can see the 'zapgrab' picture generally it's 20-22ft lbs This is from section 7. This is manual has been updated from the one I got with my engine, I only have that on paper and I recall that being 18 ft lbs, the front cover of this manual I just downloaded from the Jab Aus site says it's applicable to all 2200a engines. The 'soft headed' ones all surely bend at 22 lbs... What vintage is your engine? And the heads? Regards, Clive -----Original Message----- From: James, Clive R Sent: 13 October 2010 21:00 Subject: RE: JabiruEngine-List: Re: Adjusting screw torque Section 5.3 'Initial after 25 hours checks' in all the manuals I have here. I recall lately there is two torques, one for building the engine and one for checking afterwards. The setting in 5.3 is the one to check for. What is your serial number of the engine and what engine? 2200/3300? Regards, Clive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [ mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat Sent: 13 October 2010 18:28 Subject: JabiruEngine-List: Re: Adjusting screw torque --> Hi Clive Is it possible to know where it's possible to find 18 (20 or 24) in the manual ? thanks in advance MIcheL Clive J wrote: > Indeed the wording is not good. > > Need to be careful with 24 ft/lbs, this doesn't apply to all engines. > I believe it's 18, 20 and 24 depending on which engine you have (I > maybe wrong about the 18, I only have a 2000 and a 2003 manual here). > > Regards, Clive > > -- -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315595#315595 ________________________________ Message 12 ____________________________________ Time: 02:25:10 PM PST US From: "Bob Haas" Subject: RE: JabiruEngine-List: Adjusting screw torque That always worked for me. Bob Haas -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Lynn Matteson Sent: Wednesday, October 13, 2010 6:21 AM Subject: Re: JabiruEngine-List: Adjusting screw torque Clive, I just figured he was talking about the valve adjusting screw, but I thought he or someone else would clarify this. I don't know the torque setting for that screw/jam nut, as I have always just snugged them up and then added a "bit for good measure"....this is a case where us old mechanics had this "torque figure" written into our DNA. : ) Lynn Matteson Kitfox IV Speedster, taildragger Jabiru 2200, #2062 Sensenich 62"x46" Wood (summer) Electroair direct-fire ignition system Rotec TBI-40 injection Status: flying...1054 hrs (since 3-27-2006) On Oct 12, 2010, at 1:40 PM, James, Clive R wrote: > > > Michel, what adjusting screw do you refer to? > A screw on what? > > Regards, clive > > -----Original Message----- > From: owner-jabiruengine-list-server@matronics.com > [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of > 4aplat > Sent: 12 October 2010 17:40 > To: jabiruengine-list@matronics.com > Subject: JabiruEngine-List: Adjusting screw torque > > --> > > Hi > > For my #570 2200 Jab engine I'm looking for the torque I'm supposed to > apply on the adjusting screw > > I'm not able to found it in the "J2200 Engine Maintenance Solid Valve > Lifter Models Manual" > > thanks in advance > > MicheL > > > -------- > the French Jabiru Forum > http://jabiru-owner.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=315432#315432 > > ________________________________ Message 13 ____________________________________ Time: 11:35:03 PM PST US From: "Rob Turk" Subject: Re: JabiruEngine-List: Re: Adjusting screw torque One remark on this. The text mentions not to back off the studs. After working with Roger on my engine and discussing I am convinced that's bad advice. The bolts go all the way through the head and screw into the cylinder. On my engine, the exposed threads had corrosion on them. This corrosion caused the bolts not to move at 24lbs even though the heads were starting to leak. Do check for corrosion, use WD40 or similar to lubricate the corroded end and back off the stud a little bit. Then retighten at 24lbs/ft (or whatever your vintage manual tells you). Rob ----- Original Message ----- From: James, Clive R To: jabiruengine-list@matronics.com Sent: Wednesday, October 13, 2010 10:10 PM Subject: RE: JabiruEngine-List: Re: Adjusting screw torque So from the manual below, if you can see the 'zapgrab' picture generally it's 20-22ft lbs This is from section 7. This is manual has been updated from the one I got with my engine, I only have that on paper and I recall that being 18 ft lbs, the front cover of this manual I just downloaded from the Jab Aus site says it's applicable to all 2200a engines. The 'soft headed' ones all surely bend at 22 lbs... What vintage is your engine? And the heads? Regards, Clive -----Original Message----- From: James, Clive R Sent: 13 October 2010 21:00 To: 'jabiruengine-list@matronics.com' Subject: RE: JabiruEngine-List: Re: Adjusting screw torque Section 5.3 'Initial after 25 hours checks' in all the manuals I have here. I recall lately there is two torques, one for building the engine and one for checking afterwards. The setting in 5.3 is the one to check for. What is your serial number of the engine and what engine? 2200/3300? Regards, Clive ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-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/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-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.