rod and ring job

   / rod and ring job #1  

tmar04

Silver Member
Joined
Mar 19, 2005
Messages
101
Tractor
YM 276
I am getting ready to replace rings and rod bearings in my YM 2500. I am not a mechanic! I have removed and replaced head before with no problems. Is there any trick to getting the pistons out? Is it fairly easy to get to the rod bolts? My only fear is getting deep into the job, then coming across something that will require a real mechanic to complete.(like getting 5 bolts out, then can't get the 6th one out. Rod bolts.) any suggestions will be appreciated. thanks.
 
   / rod and ring job #2  
Ever notice that people who say it's easy are the same who've done it before? I understand your fears LOL.

IMO, drain all the fluids, split the tractor, *pull the engine and secure it to an engine stand. Carefully remove all ancillary items and organized them neatly on a clean table top. Remove valve cover, rocker arm assemblies and head. Rotate the engine 180ー (on your stand) and remove the oil pan. If the rod and main caps are NOT marked, carefully punch mark the main caps (I.E (*) - (**) - (***) and remove them. Do the same with your rod-bearing caps AND the connecting rods, and remove them next. Disassembly of the remaining engine componenets will come out easily.

*Pulling the engine keeps it mobile IF you run into a problem. You can take the engine (block) to an independent diesel mechanic and ask (pay) for trouble shooting and get the 'how to's. While the enigne is there, you can also have them measure the rod and main journals on the crankshaft and cylinder liners. This WILL prevent you from ordering the wrong sized parts (standard) in the event the crankshaft has been turned before or the cylinder walls and rings are oversized (from standard). If you work clean and keep everything organized, reassembly is a sanp when you have all the torque settings with your new parts.

Good luck... oh, and then when someone asks the same question you have, you can tell them it's e a s y?
 
   / rod and ring job #3  
Beings your head R+R went OK, you'll get threw this OK also. Got'um book ?
 
   / rod and ring job
  • Thread Starter
#4  
Yes, I have both the John Deere service manual for 850 model and Yanmar covering the 3t80 engine. should have enough book info. thanks for all comments and suggestions.
 
   / rod and ring job #5  
You don't have to split the tractor to replace rod bearings. Just make sure when assembling to get the rod caps on the same rod & in the correct position. Make sure pistons are facing the correct way in the cylinder.
 

Tractor & Equipment Auctions

2019 Fecon BH74SS Hydraulic Mulcher High Flow Skid Steer Attachment (A51691)
2019 Fecon BH74SS...
2018 Forest River XLR Hyper Lite 31HFX Toy Hauler  (A52384)
2018 Forest River...
UNUSED Roof Thermal Insulation (A53117)
UNUSED Roof...
2016 FREIGHTLINER CASCADIA DAY CAB (A53426)
2016 FREIGHTLINER...
2008 24ft. Haulmark Edge T/A Enclosed Trailer (A52377)
2008 24ft...
2013 Road King 30ft T/A Boat Trailer (A51694)
2013 Road King...
 
Top