---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Thu 02/20/14: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:39 AM - Re: RV-List: Oil Cooler's... (Carl Froehlich) 2. 09:01 AM - Van's SBs (Miller John) 3. 09:27 AM - Re: Van's SBs () 4. 01:27 PM - Re: Van's SBs (Alan Searle) 5. 03:23 PM - Service Bulletin (speedy11@aol.com) 6. 03:38 PM - Re: Service Bulletin (rv8) ________________________________ Message 1 _____________________________________ Time: 07:39:49 AM PST US From: "Carl Froehlich" Subject: RV8-List: RE: RV-List: Oil Cooler's... Matt, A few thoughts: - Mounting the cooler on the firewall solves the "heavy vibrating object mounted with a large moment arm" problem. Attached photo is how I did it on the RV-10 (not shown is the forward cooler support attached to the engine mount). On the RV-8A I mounted the cooler on the right side of the firewall with the 3" hose connecting on the right side of the plenum. I believe most 8s are on the right side as there is more room. - Mounting the cooler on the firewall allows for an easy "oil cooler air butterfly valve" install in the 3" hose between the cooler and firewall. Here is one place to get this butter fly valve: http://www.nonstopaviation.com/controller-cooler-p-14592.html?osCsid=bc77b7d 1ef861c7cd83d92c5a28010dc - Consider using the AirFlow oil cooler if you end up buying a replacement. I have this on my RV-10 and have never had a oil temp issue. Here is one place to get this cooler: http://www.aircraftspruce.com/catalog/eppages/xseriesOilCooler.php Carl -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Wednesday, February 19, 2014 9:50 PM Subject: Re: RV-List: Oil Cooler's... I thought the source of the cracking had been addressed. I had some issues with the left-rear baffle flange cracking too in the beginning. I made the rear baffle nice and strong, but used the stock left-rear piece which was .032. It just wasn't up for the task. I later added a cross strut from the crankcase just ahead of the hoist loop all the way back to the left rear corner and added some .063 angle stiffners over the oil cooler flanges for additional support. I'm wondering if I cracked the flange today taking the oil cooler off. It was pretty stuck on and I was having to do a fair amount of prying to get it to separate from the gasket. I would have been more careful if I'd of realized those flanges are made out of such crappy pot metal. Man, they are soft. Since I'm rebuilding, I decided to rebuild the left-rear baffle part and was taking the oil cooler off today to accommodate that. That's when I noticed the crack. Attached are some pictures of the setup prior to disassembly today. Matt At 06:10 PM 2/19/2014 Wednesday, Kelly McMullen wrote: >--> RV-List message posted by: Kelly McMullen > >I certainly recommend talking to Pacific Oil Cooler before you make any decisions. They can give you pricing to repair, and probably have a source for exact replacement as well. > >On 2/19/2014 6:57 PM, Linn Walters wrote: >>If you just install another oil cooler .... my gut feeling is that it'll crack too. If it was mine I would have it welded .... you can't braze aluminum .... and figure out why the oil cooler cracked in the first place. My first choice is engine vibration, and the second is stress due to the baffle mounting flange not being flat. >>Linn >> >>On 2/19/2014 8:35 PM, Matt Dralle wrote: >>>Greetings RV'ers, >>> >>>On the RV-8, I've got Stewart/Warner 10610R 10 row oil cooler for the IO-390. It's mounted on the rear baffle and its worked well and kept the oil temps in the low 180's under all conditions. >>> >>>I noticed today, that the outside mounting flange that goes next to the baffle is cracked. I suppose I could get it welded or brazed or whatever they do to aluminium, but that seems like a hack. >>> >>>Apparently, Chief doesn't carry the Stewart/Warner brand anymore and has to different variants of the Aero Classic brand in the 10 Row 10610R compatible unit. >>> >>>One is the "Standard" model for $269: >>> >>> >>> http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-coolers >>> /standard/aec-8000081.html >>> >>>The other is the "HE" (High Efficiency) models are $575: >>> >>> >>> http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-coolers >>> /he-series/aec-8001646.html >>> >>>Any thought's on either of these two options? Pros and cons. The HE models look a lot like the S&W model I have, assuming the pictures are accurate. >>> >>>Thanks for the feedback. >>> >>>Matt > - Matt Dralle RV-8 #82880 N998RV "Ruby Vixen" http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... RV-6 #20916 N360EM "The Flyer" http://www.mattsrv6.com - Matt's RV-6 Revitalization Log Status: 180+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode Matt's Livermore Airport Live ATC Stream! Check out the live ATC stream directly from my hangar at the Livermore Airport. Includes both Tower and Ground transmissions. Archives too! For entertainment purposes only. http://klvk.matronics.com ________________________________ Message 2 _____________________________________ Time: 09:01:16 AM PST US From: Miller John Subject: RV8-List: Van's SBs Anyone on the net aware of the extent of horizontal stab spar and elevator attachment points cracks? Not exactly looking forward to doing those SBs if the incidence rate has been really low.. grumpy ________________________________ Message 3 _____________________________________ Time: 09:27:39 AM PST US From: Subject: Re: RV8-List: Van's SBs I have completed the inspection and didn't find any cracks. Be aware that SB 14-02-03 was superseded by SB 14-02-05. recommended that it not be done as a preventative maintenance. Louis RV-8 N18LD ---- Miller John wrote: > > Anyone on the net aware of the extent of horizontal stab spar and elevator attachment points cracks? > > Not exactly looking forward to doing those SBs if the incidence rate has been really low.. > > grumpy > > > > ________________________________ Message 4 _____________________________________ Time: 01:27:27 PM PST US Subject: Re: RV8-List: Van's SBs From: Alan Searle Hi Ya Grumpy, All you have to do is remove the fairing at the tailplane to inspect the stab main spar area. The elevators/rudder inspection does not require removal of anything. If no cracks are found then you must do nothing except inspect each year. If cracks are found then the rectification must be made. Be sure to check the Jam Nuts on the rod ends. ( seems that loose jam nuts can cause the problem) Cheers .... Alan. RV8 Flying in Australia. On 21/02/2014, at 4:00 AM, Miller John wrote: > > Anyone on the net aware of the extent of horizontal stab spar and elevator attachment points cracks? > > Not exactly looking forward to doing those SBs if the incidence rate has been really low.. > > grumpy > > > > ________________________________ Message 5 _____________________________________ Time: 03:23:17 PM PST US Subject: RV8-List: Service Bulletin From: speedy11@aol.com Just a note to make sure all know about the Van's SERVICE BULLETIN 14-01-31 .. It's easy to accomplish the inspection - and important. I would advise Van's if you find any cracking so he can track the fleet inf ormation. If you don't have a copy of the SB then send me an email and I will send it to you in PDF. Stan Sutterfield RV-8A Reno Race 84 ________________________________ Message 6 _____________________________________ Time: 03:38:25 PM PST US Subject: Re: RV8-List: Service Bulletin From: rv8 Thank you Stan!! Yes please send me a copy. Much appreciated. Wally Allington rv8@summergrove.net On Thu, Feb 20, 2014 at 6:22 PM, wrote: > Just a note to make sure all know about the Van's SERVICE BULLETIN > 14-01-31. > It's easy to accomplish the inspection - and important. > I would advise Van's if you find any cracking so he can track the fleet > information. > If you don't have a copy of the SB then send me an email and I will send > it to you in PDF. > > Stan Sutterfield > RV-8A > Reno Race 84 > > * > > > * > > -- Wally ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-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/rv8-list Browse Digests http://www.matronics.com/digest/rv8-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.