---------------------------------------------------------- M14PEngines-List Digest Archive --- Total Messages Posted Mon 03/16/09: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:05 PM - Re: Manifold Drain Lines (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) 2. 05:03 PM - Re: Manifold Drain Lines (HBaker) 3. 05:18 PM - Re: Re: Manifold Drain Lines (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) ________________________________ Message 1 _____________________________________ Time: 04:05:07 PM PST US Subject: RE: M14PEngines-List: Manifold Drain Lines From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" Henry, I assume you are talking about the intake manifold drains lines used on the lower 3 cylinders? Typically these systems use AN#4 fittings. Some people have used hard Aluminum lines to connect everything together. I would recommend against this because every system I have seen that does it that way eventually cracks these lines due to engine vibration and then you end up with a intake air leak which can be really insidious to find. Instead use AN-4 fittings with steel braided flex hose. Suggest hose such as this: http://www.hrpworld.com/index.cfm?tpc=Aeroquip_AQP_Stainless_Steel_Braided_R acing_Hose&form_prod_id=614,600_331&action=product Typical AN#4 braided hose has a .22 ID and a .44 OD. Best Regards, Mark Bitterlich -----Original Message----- From: owner-m14pengines-list-server@matronics.com [mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of HBaker Sent: Friday, March 13, 2009 6:38 PM Subject: M14PEngines-List: Manifold Drain Lines --> Hi Guys Can anyone tell me what size lines are used on the manifold Quick drain lines, 1/8 or 1/4? Henry Moose # 294 -------- Currently building a Murphy Moose - any help would be appreciated. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=234498#234498 ________________________________ Message 2 _____________________________________ Time: 05:03:43 PM PST US Subject: M14PEngines-List: Re: Manifold Drain Lines From: "HBaker" Hi Mark Yes ,I was referring to the manifold drain lines , thanks for the info, theirs nothing like some one who has already been down the road. Thanks very much Mark! :D -------- Currently building a Murphy Moose - any help would be appreciated. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=234904#234904 ________________________________ Message 3 _____________________________________ Time: 05:18:34 PM PST US Subject: RE: M14PEngines-List: Re: Manifold Drain Lines From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" Yep, you guessed correctly. I used to use hard aluminum lines. Yep, one cracked. Yep, it took awhile to realize what was going on with the engine! Yep, I immediately switched to braided steel flexible lines. Take care, Mark P.S. Here's a little hint. Leave the intake manifold drain valve OPEN during engine priming. Reach in the cockpit and INTENTIONALLY over-prime the engine. Don't go nuts here... Say about 10-12 strokes of the primer. The excess fuel SHOULD come out the intake drain. If it does not, do not start your engine, you have oil backed up in those drain lines, and you also might have oil IN THE INTAKES that you do not want to suck into the cylinder! After doing this... Assuming fuel does come out the drain.. Look carefully at all the lines and fittings in the system for fuel leaks. I.E., It is hard to see anything coming out of these lines with the engine running. It IS EASY to see fuel coming out of these lines and fittings when you over-prime the engine and one is cracked or loose, etc. Lastly, after doing this, always gently pull the engine through making sure you don't have any kind of hydraulic lock from the over-prime fuel in a cylinder itself. This has never happened to me, but it is indeed possible if you go nuts with the priming and happen to have an intake valve open! As in.. I am saying this to cover my ass. -----Original Message----- From: owner-m14pengines-list-server@matronics.com [mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of HBaker Sent: Monday, March 16, 2009 8:03 PM Subject: M14PEngines-List: Re: Manifold Drain Lines --> Hi Mark Yes ,I was referring to the manifold drain lines , thanks for the info, theirs nothing like some one who has already been down the road. Thanks very much Mark! :D -------- Currently building a Murphy Moose - any help would be appreciated. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=234904#234904 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message m14pengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/M14PEngines-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/m14pengines-list Browse Digests http://www.matronics.com/digest/m14pengines-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.