Heymow - Lawnmower Racing Forum

Engine Help => Honda and Clone Engines => Topic started by: 2nstoys on August 22, 2012, 06:17:53 pm

Title: 390 ARC rod bolt torque
Post by: 2nstoys on August 22, 2012, 06:17:53 pm

Lost my sheet with the info. Anyone know the torque for the ARC rod bolts?

Title: Re: 390 ARC rod bolt torque
Post by: Cromwell C4 on August 22, 2012, 06:50:55 pm

Just going from memory here but i believe it is 240" lbs or 20 ft lbs.

Title: Re: 390 ARC rod bolt torque
Post by: George Herrin on August 22, 2012, 07:44:17 pm

 IF ITs 5/16 - 12 point heads 30ft lbs, or 1/4" -12 point heads 170"lbs.

Title: Re: 390 ARC rod bolt torque
Post by: Ron Atchison/A.C.E. Race Engines on August 23, 2012, 01:24:13 pm

You might wanna try 26# with a drop of Loctite 271. This procedure can keep for bolt from loosening up when the top rod cap start to collapse within the oil hole, this can prevent immediate failures.

Title: Re: 390 ARC rod bolt torque
Post by: 2nstoys on August 23, 2012, 10:03:26 pm

Thanks all.