Replying to Thread:

John Deere 4276T loud Knocking sound!

Created On Thursday 10, April, 2014 6:23 AM by dannyidp

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[q]Hello all, I am new to this forum so take it easy on me lol.I have a jd 410 with a 4276t engine I completely rebuilt the engine about 5 years ago when I rebuilt the engine I didn't replace the gears on the front,{ cam gear crank gear idler gears ect} I did notice that the backlash was max.The engine has run great up until the other day I have baby-ed this engine with oil changes ect it developed a bad knock yesterday so at this point I have pulled the valve cover and adjusted the valves pulled the oil pan and checked the mains and rod bearings they all looked good,I just can't fig out this loud knocking sound it is very pronounced.I was going to pull the head today I thought i would check with you guys and see if you had any ideas? thanks regards Dan[/q]

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dannyidp

Posts: 2
Joined: Apr 2014

Thursday April 10, 2014 06:23

Hello all,

I am new to this forum so take it easy on me lol.I have a jd 410 with a 4276t engine I completely rebuilt the engine about 5 years ago when I rebuilt the engine I didn't replace the gears on the front,{ cam gear crank gear idler gears ect} I did notice that the backlash was max.The engine has run great up until the other day I have baby-ed this engine with oil changes ect it developed a bad knock yesterday so at this point I have pulled the valve cover and adjusted the valves pulled the oil pan and checked the mains and rod bearings they all looked good,I just can't fig out this loud knocking sound it is very pronounced.I was going to pull the head today I thought i would check with you guys and see if you had any ideas? thanks

regards
Dan

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