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John Deere Tractors Discussion Forum
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2510 help

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2510 Guy

11-21-2005 16:26:04




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I’ve got a 1966 2510 diesel that ran very well, but seeped antifreeze into the crankcase. I’m repairing the leaking cylinder liner o-rings by replacing the pistons and liners. I am also installing rod bearings while I’m at it. The original bearings are stamped 4-65 so I’m thinking they are original yet look great. The pistons and cylinders looked very good, with normal wear. I’ve got a service manual ordered, but was hoping someone could give me the rod/head torque specs as well as head order/pattern. I’ll have the parts in from JD over the long weekend, and would like to put her back together. Is there anything unique to the 2510 or Deere 4 cyl diesels I should look for?

Thanks much,

Scott

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Mike M

11-22-2005 05:27:08




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 Re: 2510 help in reply to 2510 Guy, 11-21-2005 16:26:04  
Others covered everything I could think of ,but I just wanted to stress the importance of using NEW ROD BOLTS.



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matthies

11-21-2005 20:47:47




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 Re: 2510 help in reply to 2510 Guy, 11-21-2005 16:26:04  
Don't know about the Dubuque engines like your tractor has, but the Waterloo engines need new rod bolts after being torqued once. chris



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Glen in TX

11-21-2005 19:00:15




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 Re: 2510 help in reply to 2510 Guy, 11-21-2005 16:26:04  
Scott, Wish I had known you needed manuals as I still got a like new set I would have sold you. Have to find the manuals and I could send you something later. Like Bouncer, I too would recommend considering doing the mains and also checking and maybe doing the cam bearings and balancer shafts and/or bearings too. Doesn't sound like it is all that bad but if lots of hours you might find more later? We had a 2510 and had a local mechanic do a short route overhaul on it and then later it started vibrating like crazy from not replacing balancer shafts, bearings, and cam bearings. Then a aftermarket piston seized in a liner so we ended up doing another overhaul with all JD parts next time and with as many 2520 updates to engine as could be done and it ran much smoother with more power after that. Think I have tech manual and 202 & 180 engine manuals that should have torque stuff in them. Email me if you need that.

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jdemaris

11-21-2005 18:31:19




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 Re: 2510 help in reply to 2510 Guy, 11-21-2005 16:26:04  
I don't remember if you have the 202 or 219 cubic inch engine. They are both basically the same except one has 3.8" bore and the other 4" bore. Same engines as used in the 450 crawlers. Head bolts are torqued to 110 lbs. Just work from the center out, and do it in steps - like first torque to 50lbs., then go back and torque to 75 lbs., and then do them all at 110 lbs. and bolt threads well oiled. Main caps are 85 lbs. and rods are - well -depends on what you have for rod bolts. Usually 3/8" fine threaded bolts. Deere called for 65 lbs when the tractors were made, but all the later engines with the same rods and bolts only got torqued to 52 lbs. So, take your pick. I'm not sure if you are re-using the old sleeves or you've got new ones. If you've got the older engine block that only has single o-ring sleeves - you're making a mistake re-using them. Deere upgraded them to a three-ring conversion sleeve to prevent coolant leakage. If you've got a newer block, that has three o-rings that go into the block, then all is okay.

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2510 Guy

11-22-2005 04:42:34




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 Re: 2510 help in reply to jdemaris, 11-21-2005 18:31:19  
I’ve got the older block, but I’m going back in with new JD sleeve kits. They should have the updated seals.

Thanks for the information!

Scott



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Bouncer

11-21-2005 16:36:27




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 Re: 2510 help in reply to 2510 Guy, 11-21-2005 16:26:04  
I can't help you on the torque numbers, but may I suugest you do yourself a favor and replace the main bearings while it's down. That will be money well spent.



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