---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Fri 01/07/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:34 AM - Re: Special Airworthiness Information Bulletin for VW Engines (Thom Riddle) 2. 05:42 AM - Re: Re: Special Airworthiness Information Bulletin for VW Engines (John Hauck) 3. 06:15 AM - Re: Special Airworthiness Information Bulletin for VW Engines (Thom Riddle) 4. 09:34 AM - Re: Re: Special Airworthiness Information Bulletin for VW Engines (Rick Neilsen) 5. 09:52 AM - Re: Special Airworthiness Information Bulletin for VW Engines (Rick Neilsen) 6. 10:08 AM - Re: Bing 54 jets - cleaning? (Ron @ KFHU) ________________________________ Message 1 _____________________________________ Time: 05:34:09 AM PST US Subject: Kolb-List: Re: Special Airworthiness Information Bulletin for VW Engines From: "Thom Riddle" Rick and John, I know this is about VW engines but... Jabiru specifies a head torque CHECK (not re-torque) after first 5 hours, 10 hours and 25 hours. Afterwards at 100 hour or annual. The purpose of the CHECK is to determine if there has been any loosening. Jabiru says NOT to loosen the head bolts and re-torque them, unless they are loose at proper torque setting. If loose, no need to loosen them, just torque up to spec. -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 Everyone is entitled to his own opinion, but not his own facts. Daniel Patrick Moynihan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=325883#325883 ________________________________ Message 2 _____________________________________ Time: 05:42:50 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Special Airworthiness Information Bulletin for VW Engines Jabiru specifies a head torque CHECK (not re-torque) after first 5 hours, 10 hours and 25 hours. Afterwards at 100 hour or annual. The purpose of the CHECK is to determine if there has been any loosening. Jabiru says NOT to loosen the head bolts and re-torque them, unless they are loose at proper torque setting. If loose, no need to loosen them, just torque up to spec. -------- Thom Riddle Glad we don't have to go through that drill with the 912 series engines. However, I did have a cylinder head loosen and leak on my first 912UL, a 1993 model. My other two engines, 912ULS, have not had that problem. Don't know of anyone else that experienced a loose head back then. john h mkIII Titus, Alabama ________________________________ Message 3 _____________________________________ Time: 06:15:57 AM PST US Subject: Kolb-List: Re: Special Airworthiness Information Bulletin for VW Engines From: "Thom Riddle" ...I did have a cylinder head loosen and leak on my first 912UL... On the two Jabiru 2200 engines I have maintenance experience with, so far the head bolt torque checks I have performed have not found any loosening. -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 Everyone is entitled to his own opinion, but not his own facts. Daniel Patrick Moynihan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=325889#325889 ________________________________ Message 4 _____________________________________ Time: 09:34:01 AM PST US Subject: Re: Kolb-List: Re: Special Airworthiness Information Bulletin for VW Engines From: Rick Neilsen Rick My engine builder installed those teflon plugs instead of the wrist pin keepers. I have heard good and bad about the plugs but at least I don't have to work about my batch of keepers being too small. Rick Neilsen Redrive VW Powered MKIIIC On Thu, Jan 6, 2011 at 7:13 PM, Rick Lewis wrote: > > Rick there even a more serious AD out on the VW engine. I was notified > from Great Planes that the wrist pin keepers may be the wrong part and > therefore to small. When the engine heats up the pistons allow the keepers > to fall out and scar the cylinder walls, a real bummer. He sent me a new > set and I pulled the cylinders off to check and sure enough, mine had the > wrong keepers installed. I called Steve, of Great Planes, and thanked him > for possibly saving my engine and life. This AD note covered about a five > year time period but don't remember the exact dates. Anyone that has buildt > up one of these engines from them should call and find out if there engine > might be at risk. > > -------- > Rick Lewis > > (VW Watercooled Engine) > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=325860#325860 > > ________________________________ Message 5 _____________________________________ Time: 09:52:10 AM PST US Subject: Re: Kolb-List: Special Airworthiness Information Bulletin for VW Engines From: Rick Neilsen John makes a real good point. Should we be backing off a bit and then retorqe? My concern is that VW heads are assembled without any head gaskets. The last thing I would want to do is allow the cylinders to move within the head some and cause a leak that didn't before. Maybe only back off enough to get the nut or bolt to move? Another concern is a nut under a valve cover might become lubricated and be over torqued as a result (seems like torque specks are normally defined as dry unless specified as lubricated). Any thoughts out there???? Rick Neilsen Redrive VW Powered MKIIIC On Thu, Jan 6, 2011 at 9:49 AM, John Hauck wrote: > > > just bring the torque wrench up to the rated > torque and stop. Most of the time the head bolts don't turn but some times > they do. > > Rick Neilsen > > > Rick N/Folks: > > I thought you had to back off a nut or bolt, especially one that has been > torqued for a while, then retorque to get an accurate reading??? > > If you try to torque without backing off, you may be working against > seizure/friction caused by age??? > > john h > Titus, Alabama > > ________________________________ Message 6 _____________________________________ Time: 10:08:54 AM PST US From: "Ron @ KFHU" Subject: Re: Kolb-List: Bing 54 jets - cleaning? I have been using an Ultrasonic cleaner for years, they are good for anything including the fuel injectors on my Beech. It works good. Instead of water you can fill it up with Kerosine or any potion that you want and they will do their magic. Strongly recommended as something that works. Besides once you remove your Kerosine you can put water and clean anything else that you want that fits there. I did a quick search and found a unit on amazon for about 36 bucks. Well, worth it. ------ http://www.amazon.com/Haier-HU335W-Ultrasonic-Cleaner/dp/B0000BVGNJ ------ I couldn't find the model I have but the above is pretty close in size to mine. It does not take long for the gizmo to get the shmutz out, if you look carefully you will see a little cloud come out when it first comes on vibrating. The injectors on an IO-360 are a bit bigger than the carb ones so they have more crap in them, I get a bigger visual effect than the Carb jets I would guess. Ron @ FHU ======================= ============ > I know it is not recommended to clean the idle and main jets even with the fine copper strand, be careful. > but was wondering if anyone has ever done it after they were gummed up Sometimes the motorcycle jets I work on are too blame small for carb cleaner to do much. Plus idle jets seem to be the ones that plug up first, being the smallest. I use a propane torch on them, holding them lightly but firmly with needle-nose vide-grips. After getting them very hot I can usually blow out a small amount of ash and have a clean idle jet. GeoB I have been cleaning the injectors on my Beech for a few years using a sonic cleaner. I did a quick G-search and here is a cheap one from Amazon --- -- kugelair.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-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/kolb-list Browse Digests http://www.matronics.com/digest/kolb-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.