---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 10/03/10: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:03 PM - Dry engine at last! (Cpayne) 2. 05:27 PM - 18T PARTS REQUIRED (Joe Howse) 3. 07:26 PM - Re: Dry engine at last! (Roger Kemp M.D.) 4. 09:26 PM - Blue Mountain Avionics EFIS (Larry Pine) 5. 10:16 PM - Blue Mountain Avionics EFIS (Larry Pine) ________________________________ Message 1 _____________________________________ Time: 05:03:23 PM PST US From: Cpayne Subject: Yak-List: Dry engine at last! Ever arrive at an airshow or RPA event and cringe when you spotted all the oil down the side of your airplane? All that really nice paint besmirched by streaks of oil. I usually hurry to wipe away the embarrassing evidence. The cop-out is always: "it's a radial you know". Some don't worry, I do. It's like the "heartbreak of leaks" to paraphrase an old medicine ad. What to do? Fix it. That's what I did but there are no short cuts. 1) Replace all of the pushrod hoses. That means pulling the pushrod, adjustment screw and cam follower with spring. Reinstalling require crafting of a tool to hold the follower and spring in place during re-install. I used good old US 3/4" H-6000 oil hose. Now that's a little too big so I also used pieces of 3/4" Shrink tube to fatten up the lower pushrod end and the follower housing. That and a heat gun gave the hose something to clamp up to. I used both stock clamps and a Breese clamp for good measure on each hose. 2) Change out the rocker arm shaft crush washers with high temp red silicone metric o-rings: 10mm ID x 2MM thickness. Retain the big washers which squeeze the O-rings to seal the shaft ends. 3) Clean, and I mean clean and scrape the valve cover seal grooves. I acid etched and powder coated since I went through that much trouble anyway. Use new Red Silicone valve cover gaskets but first clean the mating surfaces on the engine rocker housings and then lightly coat with Red RTV using an artists paint brush. Let dry and install the valve covers dry, with fully seated gaskets (no overlap). Adjust hold down wires for just enough tension without puckering out the gaskets. Me happy, so far... Craig Payne ________________________________ Message 2 _____________________________________ Time: 05:27:04 PM PST US From: "Joe Howse" Subject: Yak-List: 18T PARTS REQUIRED LOOKING FOR THE FOLLOWING INTERIOR PARTS FOR 18T FOR CABIN AIR CONTROL 7600-01 KNOB 7600-03 PANEL 7600-70 LEVER 3051A-4-26 SCREW FOR KNOB FOR CABIN DOOR RESTRAINT (ONE DOOR) 0136-01 SWIVEL 0136-10 ROD 0136-02 BRACKET FOR CABIN DOME LIGHT 7204-40 LENS CM28-10 COVER JOE HOWSE ________________________________ Message 3 _____________________________________ Time: 07:26:21 PM PST US From: "Roger Kemp M.D." Subject: RE: Yak-List: Dry engine at last! Craig, Thanks for the info. Had not thought of the hi temp 10 mm x2 mm o-rings with using the retained crush washer to squeeze the o-ring on the rocker arm box. Hope I remember it when I need it. Doc -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Cpayne Sent: Sunday, October 03, 2010 7:00 PM Subject: Yak-List: Dry engine at last! Ever arrive at an airshow or RPA event and cringe when you spotted all the oil down the side of your airplane? All that really nice paint besmirched by streaks of oil. I usually hurry to wipe away the embarrassing evidence. The cop-out is always: "it's a radial you know". Some don't worry, I do. It's like the "heartbreak of leaks" to paraphrase an old medicine ad. What to do? Fix it. That's what I did but there are no short cuts. 1) Replace all of the pushrod hoses. That means pulling the pushrod, adjustment screw and cam follower with spring. Reinstalling require crafting of a tool to hold the follower and spring in place during re-install. I used good old US 3/4" H-6000 oil hose. Now that's a little too big so I also used pieces of 3/4" Shrink tube to fatten up the lower pushrod end and the follower housing. That and a heat gun gave the hose something to clamp up to. I used both stock clamps and a Breese clamp for good measure on each hose. 2) Change out the rocker arm shaft crush washers with high temp red silicone metric o-rings: 10mm ID x 2MM thickness. Retain the big washers which squeeze the O-rings to seal the shaft ends. 3) Clean, and I mean clean and scrape the valve cover seal grooves. I acid etched and powder coated since I went through that much trouble anyway. Use new Red Silicone valve cover gaskets but first clean the mating surfaces on the engine rocker housings and then lightly coat with Red RTV using an artists paint brush. Let dry and install the valve covers dry, with fully seated gaskets (no overlap). Adjust hold down wires for just enough tension without puckering out the gaskets. Me happy, so far... Craig Payne ________________________________ Message 4 _____________________________________ Time: 09:26:26 PM PST US From: Larry Pine Subject: Yak-List: Blue Mountain Avionics EFIS I have a Blue Mountain Avionics EFIS Lite Plus that will be for sale.- Th is has been installed in my CJ for the last year and has performed flawless .-Has the latest software updates. -I'm redoing my cockpit and will sel l at a considerable savings.- Cost $4500 new, will sell complete function al system with custom water jetyed panel for $2000. - www.bluemountainavionics.com - Wanted to offer to the Yak community before I listed else where.- Contact me directly if interested or with questions. Larry - -=0A=0A=0A ________________________________ Message 5 _____________________________________ Time: 10:16:56 PM PST US From: Larry Pine Subject: Yak-List: Blue Mountain Avionics EFIS - I have a Blue Mountain Avionics EFIS Lite Plus that will be for sale.- Th is has been installed in my CJ for the last year and has performed flawless .-Has the latest software updates. -I'm redoing my cockpit and will sel l at a considerable savings.- Cost $4500 new, will sell complete function al system with custom water jetyed panel for $2000. - www.bluemountainavionics.com - Wanted to offer to the Yak community before I listed else where.- Contact me directly if interested or with questions. Larry - - =0A=0A=0A ------------------------------------------------------------------------------------- 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.