RC engine rebuild

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    Removed and rebuilt engine, new sleeves, bearings, pistons,rings. Re-installed engine in tractor. Engine sat unused for about a year while i attended to other things. Now preparing to run engine.  First i added anti-freeze. I thought to be safe, so to check for leaks i left the crankcase drain plug out. Put a pan under crankcase and much to my disgust i found about a 1/2 cup of anti-freeze in the pan the following morning. I must say i only added one gallon. After that , no more leakage. About  a week later i added another gollon, that was this AM. Within minutes more leakage.
 So my question is, what is  my best course of action? I need suggestions from more experienced tractor mechanics.
 To say the least, i'm sick to my stomach, Thanks in advance for your response.

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GeorgeinNJ Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 11 Sep 2009 Location: Sussex Cty. NJ Points: 26	Post Options Post Reply Quote GeorgeinNJ Report Post Thanks(0) Quote Reply Topic: RC engine rebuild Posted: 04 Jun 2011 at 11:25pm
	Removed and rebuilt engine, new sleeves, bearings, pistons,rings. Re-installed engine in tractor. Engine sat unused for about a year while i attended to other things. Now preparing to run engine. First i added anti-freeze. I thought to be safe, so to check for leaks i left the crankcase drain plug out. Put a pan under crankcase and much to my disgust i found about a 1/2 cup of anti-freeze in the pan the following morning. I must say i only added one gallon. After that , no more leakage. About a week later i added another gollon, that was this AM. Within minutes more leakage. So my question is, what is my best course of action? I need suggestions from more experienced tractor mechanics. To say the least, i'm sick to my stomach, Thanks in advance for your response.

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CTuckerNWIL Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: NW Illinois Points: 22825	Post Options Post Reply Quote CTuckerNWIL Report Post Thanks(0) Quote Reply Posted: 04 Jun 2011 at 11:39pm
	Probably pull the pan and see where it is coming from. You may have sheared an O-ring in assembly or there might be a (hope not) cracked you missed seeing. By chance did you replace the core plugs in the top of the head when you rebuilt it? If not, I would replace them first. The core plug probably wouldn't leak until the water level was pretty close to the top of the cores in the rad but maybe could if you don't have a thermostat in. ?????????? Edited by CTuckerNWIL - 04 Jun 2011 at 11:42pm
	http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

scott Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: michigan Points: 2736	Post Options Post Reply Quote scott Report Post Thanks(0) Quote Reply Posted: 05 Jun 2011 at 7:31am
	Pull the pan and watch up into the crankcase to see which cylinder its leaking from. Probably pull the head, piston and liner from the leaking cylinder, inspect the block where the O-rings seal for cracks. If no cracks reassemble with new orings. Make sure the new o-rings are the same thickness as the old ones and use Dawn dish soap to help lube the o-rings upon assembly. The guy from the nearby tractor repair shop says they lube the o-rings with silicone sealant, which also helps them seal. Never heard of this on here so I wonder what others might think of this trick. Good Luck!

Dick L Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Edon Ohio Points: 5087	Post Options Post Reply Quote Dick L Report Post Thanks(0) Quote Reply Posted: 05 Jun 2011 at 8:24am
	Ya, as said above but I would check the core plugs under the rocker assembly. Pulling the valve cover and looking will tell you if they are leaking. You will be able to see water or antifreeze in the core plug pockets if they are leaking. If that is not the cause remove the pan and put pressure on the radiator and watch to see if any antifreeze drops come at the bottom of the sleeves. The biggest cause of O ring failure is not clearing the bottom hole where the O rings seal. The sleeve without O rings need to be able to turn around and around with your hands when you have a proper fit before installing them. Then not having a sharp edge at the top of the hole is also important. The type of lube can vary with good results. Anything from dish liquid soap to K Y will work. No reason that silicone sealer would not work but if you shear an O ring because of a bad prep or a sharp edge nothing will work except some type of block fill or pulling the sleeve and fixing the problem.