---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Thu 10/14/10: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:50 AM - Re: Adjusting screw torque (4aplat) 2. 02:38 AM - Re: Re: Adjusting screw torque (James, Clive R) 3. 02:39 AM - Re: Re: Adjusting screw torque (James, Clive R) ________________________________ Message 1 _____________________________________ Time: 12:50:15 AM PST US Subject: JabiruEngine-List: Re: Adjusting screw torque From: "4aplat" It's a 2200 serial #570 I'm not looking for the torque for the cylinder heads but for the valve clearance adjusting screw (and nut) MicheL Clive J wrote: > > What vintage is your engine? And the heads? > Regards, Clive > -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315686#315686 ________________________________ Message 2 _____________________________________ Time: 02:38:37 AM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" For the same reason on older heads where they deform check by backing off and if necessary take the bolts out and clear the hole out with a drill bit. My old heads on the 2200 twisted badly (#596) and I had trouble getting the head bolts out for this reason. CJ ________________________________ From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Rob Turk Sent: 14 October 2010 07:31 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 ________________________________ Message 3 _____________________________________ Time: 02:39:38 AM PST US Subject: RE: JabiruEngine-List: Re: Adjusting screw torque From: "James, Clive R" Michel, that was the one where we don't have a reading and a suggested you practised a bit with locking and un locking the screw until you 'felt' it was right. Ring spanner hand tight. Good discussion spawned anyhow, Regards, Clive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat Sent: 14 October 2010 08:48 Subject: JabiruEngine-List: Re: Adjusting screw torque --> It's a 2200 serial #570 I'm not looking for the torque for the cylinder heads but for the valve clearance adjusting screw (and nut) MicheL Clive J wrote: > > What vintage is your engine? And the heads? > Regards, Clive > -------- the French Jabiru Forum http://jabiru-owner.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=315686#315686 ------------------------------------------------------------------------------------- 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.