---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Tue 01/05/21: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:49 PM - Need Built and Tested Left PP QB Fuel Tank for RV-8... (Matt Dralle) 2. 05:56 PM - Re: Need Built and Tested Left PP QB Fuel Tank for RV-8... (Kelly McMullen) ________________________________ Message 1 _____________________________________ Time: 04:49:19 PM PST US From: Matt Dralle Subject: RV8-List: Need Built and Tested Left PP QB Fuel Tank for RV-8... Dear Listers, After my landing mishap in 2011, the replacement left fuel tank I had built for my PP QB RV-8 has big leaks in at least four places. Slosh would probably fix it, but everybody including Van's says "don't slosh!". Does anyone have a lead on a Pre-Punched, preferably Quick Build LEFT Fuel Tank for an RV-8 that is in 10/10 condition? Maybe from an RV-8 that had only right wing damage. I would like a tank that is proven to not leak with no damage, and with a fixed fuel pickup. I would love to get my RV-8 back in the air. The prospect of building a new fuel tank from parts seems daunting and time consuming right now, and prone to dealing with leaks again. Thank you, Matt Dralle RV-8 N998RV http://www.mattsrv8.com ________________________________ Message 2 _____________________________________ Time: 05:56:40 PM PST US Subject: Re: RV8-List: Need Built and Tested Left PP QB Fuel Tank for RV-8... From: Kelly McMullen Matt, Mooney Aircraft has specified a top coat PR1005 since at least 1975 for all of their fuel tanks. I have had the pleasure of both removing and applying this sealant(as well as a complete reseal of one and partial other tank). PR1005 does none of the bad things alleged by Vans and others. In fact the chemicals that break down the Vans and (Mooney) Proseal (PR1422?) will only soften the PR1005. This Buna N "slosh" coating is best applied with a brush before the tank is closed, or through an access panel. Cleanup is generally MEK or acetone. The procedure to find leaks in a Mooney tank is to open one access panel, apply soapy water solution, close with a scrap piece of plexiglass and duct tape, then pull about 1/2 psi or less vacuum And look for bubbles with a flash light. Where it bubbles is where the leak is. Where the leak shows on the outside is how the fuel runs from inside leak to where it shows outside. The Mooney tank actually gets 3 coats because in the last century they built the wing, then sealed the tanks afterwards...no wet riveting at all. The Coats are PR1422, PR1428 and PR1005. Otherwise known as B compound, A compound and cherry juice. Done right a tank seal was good for at least 20-30 years. I don't know if it is easier to drill out the tank back plate or to cut access panels as needed. Those are Proseal brand numbers. They do cross reference to Flamemaster Chemseal that meets the exact same milspecs for a lot less money. Just another route to solving the problem. I think Vans at one time would sell a built and tested tank for a price. Kelly On 1/5/2021 5:48 PM, Matt Dralle wrote: > > > Dear Listers, > > After my landing mishap in 2011, the replacement left fuel tank I had > built for my PP QB RV-8 has big leaks in at least four places. Slosh > would probably fix it, but everybody including Van's says "don't slosh!". > > Does anyone have a lead on a Pre-Punched, preferably Quick Build LEFT > Fuel Tank for an RV-8 that is in 10/10 condition? Maybe from an RV-8 > that had only right wing damage. I would like a tank that is proven to > not leak with no damage, and with a fixed fuel pickup. > > I would love to get my RV-8 back in the air. The prospect of building a > new fuel tank from parts seems daunting and time consuming right now, > and prone to dealing with leaks again. > > Thank you, > > Matt Dralle > RV-8 N998RV > http://www.mattsrv8.com > > > > > > ------------------------------------------------------------------------------------- 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.