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Matt06br 
Bronze Level
Joined: 15 Aug 2016
Location: Brillion, WI 54
Points: 130
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 Topic: 25-40 parts needed
Posted: 07 Nov 2023 at 5:57pm |
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I am looking for a couple parts for my 25-40. I need an oil dipstick, hood, and a set of rear round spoke rims. Message me if you have any of those three parts.
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only AC orange
Silver Level Access
Joined: 06 Dec 2014
Location: Eastern Indiana
Points: 464
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Posted: 08 Nov 2023 at 7:56am |
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I have all those parts! You must buy the tractor to get them. I would like to sell my 1931 25-40, runs good, not a threshermans special, rubber cleats bolted on rear steel, steel on front, have original bolt on cleats for rear and front steel guides. Can send pics by phone. PM me if interested, in East Central Indiana.
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Rod in MN
Silver Level
Joined: 16 Sep 2009
Location: Rice MN
Points: 290
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Posted: 11 Nov 2023 at 11:57am |
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Hi Guy’s, I also have a 25-50 tractor that I need some engine parts. Need a exhaust manifold intake manifold, one cylinder liner and a cylinder head.
This tractor sat in the same spot for 70 years. The engine was stuck. I will be putting in new ring and o-rings on the liners But the o-ring grooves in the block.
Has anyone ever machined the o-ring grooves out of the block and made a sleeve with new grooves and press into the block?
I know that John Deere 40,30 series are having this problem and Deere has a sleeve made to fix the problem?
Thank You
Rod in MN
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Matt06br
Bronze Level
Joined: 15 Aug 2016
Location: Brillion, WI 54
Points: 130
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Posted: 11 Nov 2023 at 8:49pm |
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I have found the rims I need. But am still looking for the correct engine oil dipstick. Thanks
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8235
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Posted: 12 Nov 2023 at 8:31pm |
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...Im not following where the liner orings are. You say in the block so what's the problem with just replacing them?
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Rod in MN
Silver Level
Joined: 16 Sep 2009
Location: Rice MN
Points: 290
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Posted: 14 Nov 2023 at 9:44am |
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Hi,
Putting in new o-rings is not a problem. It’s will be the sealing.
I really don’t want to put all the work and money it a tractor restoration and have the crankcase fill up with water.
The groves in the block are very rusty. I don’t think that he o-rings will hold the water from getting into the oil. If I do put in new o-rings how long will they hold? If at all?
Or I would have to make a way to cap the top of the block and put a hole in the water jacket and pressurize the cooling system and look for leaks?
That maybe my only way for testing.
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SteveM C/IL
Orange Level Access
Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8235
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Posted: 19 Nov 2023 at 9:23pm |
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Only suggestion I have for testing is head installed and outlets capped off with antifreeze in block above orings,then pressurize to say 15lb overnight with pan off and see what develops. What I do. It would take a lot of metal removal to make a slug with oring grooves in it. Don't have any idea if there is enough for that. You could possibly machine groves for larger dia orings. Cat does that on mechanical engine nozzle holders.
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Gary(WI)
Orange Level
Joined: 27 Nov 2009
Location: WI
Points: 995
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Posted: 20 Nov 2023 at 6:40am |
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I have several replacement blocks if you decide to go that route.
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NEVER green
Orange Level Access
Joined: 28 Feb 2013
Location: MN.
Points: 7478
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Posted: 20 Nov 2023 at 11:11am |
Use rubber O rings, pour liquid epoxy couple inches thick on top of them.
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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Fred in Pa
Orange Level
Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210
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Posted: 20 Nov 2023 at 12:26pm |
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Use Hylomar . I have done these engines for years never had a problem sealing one even used it on B,C , WC ,WD O ring's . As long as block is not cracked in bottom and you are only dealing with pitting in block and use good sleeves .
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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Rod in MN
Silver Level
Joined: 16 Sep 2009
Location: Rice MN
Points: 290
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Posted: 21 Nov 2023 at 9:55am |
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Hi Guy’s, The block is not cracked that I can see. My liners are pitted some I was thinking about using JB Welded where the o-rings sit on the liner and sand them smooth. Then check it out if it holds water??
Thanks Guy’s
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Rod in MN
Silver Level
Joined: 16 Sep 2009
Location: Rice MN
Points: 290
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Posted: 22 Nov 2023 at 10:25am |
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Hi, Fred, You said to use Hylomar What type did you use on the liner o-rings. Was it the nonharding ??? Thanks Fred
Thank You
Rod in MN
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