Oil cooled piston 190 XT

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   In the process of rebuilding a very tired Series 3 XT. We've had the tractor for 15 years and little by little it got harder to start. Very low compression. We have no prior history. The main bearings have 74 stamped in them and rod #1 has the serrated cap, so someone has been in there at some point. Going to check out the head and have the pump and injectors redone. Pump guy said it was wore out.
So got the kit and the main bearings have the oval hole for the piston cooling and the block has the port as well, but the bearings we removed had just a hole and would not have fed oil to the cooling ports. Just to be sure, it's ok to use this style bearing without a loss of oil pressure issue.
Thanks
Leon B MO

Edited by Leon B MO - 2 hours 24 minutes ago at 3:17pm

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Leon B MO Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Old Monroe, Mo Points: 2210	Post Options Post Reply Quote Leon B MO Report Post Thanks(0) Quote Reply Topic: Oil cooled piston 190 XT Posted: 2 hours 26 minutes ago at 3:15pm
	In the process of rebuilding a very tired Series 3 XT. We've had the tractor for 15 years and little by little it got harder to start. Very low compression. We have no prior history. The main bearings have 74 stamped in them and rod #1 has the serrated cap, so someone has been in there at some point. Going to check out the head and have the pump and injectors redone. Pump guy said it was wore out. So got the kit and the main bearings have the oval hole for the piston cooling and the block has the port as well, but the bearings we removed had just a hole and would not have fed oil to the cooling ports. Just to be sure, it's ok to use this style bearing without a loss of oil pressure issue. Thanks Leon B MO Edited by Leon B MO - 2 hours 24 minutes ago at 3:17pm
	Uncle always said "Fill the back of the shovel and the front will take care of itself".

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22369	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 2 hours 8 minutes ago at 3:33pm
	An XT block doesn't have the small hole (.040") drilled in the upper main brg saddle for piston cooling. So, even tho the upper bearing shell has the delivery slot, the oil has no place to go. Will work fine.