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Fordson Tractors Discussion Forum

Re: Dexta 200hrs main seals leaking

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06-23-2014 14:07:04

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My first boss, back when I was a teenager at a shop gave me this advice following a rebuild. Check your fluids, get a full tank of fuel and don't stop working it till the exhaust pipe is burning grey. Vary your RPM and work it light then as hard as you can make it work. Be prepare to work it all day.

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06-23-2014 19:18:41

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 Re: Dexta 200hrs main seals leaking in reply to WayneB, 06-23-2014 14:07:04  
Thanks Wayne
I was also told not to baby the new engine after the rebuild, i.e. put it to work, and that I did. Worked it hard probably the first 100 or so hours before she really got a break. The exhaust really is clean, only a bit of grey when i throttle up or down sometimes. Many days, i've run tank of diesel before shutting it down. She cranks with only a turn or two. Things have gone great until now. I have run a tractor with slobber before... I've seen the symptoms of running the diesels lightly also. I know there's been posts in the past about rear mains on these engines being problematic. However, it would seem to me that for this rear main seal to start dripping after 225 hours of hard work is unusual. Thats why i thought perhaps the fresh oil/filter may have been the trigger of something inside. my oil pressure responded after the oil change as i thought was usual, my old oil would run 50 lbs cold, 40 lbs hot. new oil runs 55-60 lbs cold and 45-50lbs hot. i have always run the rotella t 15w40 in her. we ran her today for antoher 5hours cutting waist high bahaia in 90 degree weather, the bahaia itself is a challenge, its like cutting wire. she ran perfect just a steady drip drip drip.

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06-23-2014 20:26:58

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 Re: Dexta 200hrs main seals leaking in reply to DavidLA, 06-23-2014 19:18:41  
Read the 2011 comments. Apparently, some say its hit an miss on 2 piece install, other had techniques and special tools. Still other simply said let it mark its territory. Good read.

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06-24-2014 03:52:25

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 Re: Dexta 200hrs main seals leaking in reply to WayneB, 06-23-2014 20:26:58  
Thanks Wayne,
I had read that a long time ago, it is a good read. i'm thinking that my drip may just be what was considered "normal" for these old tractors with the rope. since i ran it hard for 200 hours with no leak at all, i guess the rope has worn a bit and is letting a small amount get by now. i thought about putting some rear main stop leak in to swell the rope, but i think it only works on rubber seals.
thanks, david

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