Author Topic: 350F enginne rebuild torque settings  (Read 465 times)

0 Members and 1 Guest are viewing this topic.

Offline chrisbc55

  • Full Member
  • *
  • Posts: 69
350F enginne rebuild torque settings
« on: July 31, 2013, 02:03:53 AM »
I am rebuilding this motor replacing all the seals and have the cases apart and everything out so as to bead blast and have the cases repainted with HPC(high performance coating)
I am about to put it back together again and although I have a workshop manual which shows the major torque settings there is no mention of every other bolt. What would you suggest  as a suitable tightness. I thought I might also use a little lock tight (red) ...non permanent for a little extra security.
Interested to hear your thoughts.
Cheers
Chris

Offline Bodi

  • Really Old Timer ...
  • *******
  • Posts: 5,702
Re: 350F enginne rebuild torque settings
« Reply #1 on: July 31, 2013, 05:34:18 AM »
The official torque values for non-specific fasteners are in the "Honda Motorcycle Workshop Common Service Manual" which should be findable online.
Just don't believe the official torque value for any 6mm bolts, like the engine rocker cover bolts. These will strip the threads in the alloy case/head super easily: just tighten until they are snug, then tighten maybe 1/8 turn more. The side cover screws should be tightened with a manual (hammer type)  impact driver, just a gentle-ish tap to make sure they are secure and won't loosen.
Loctite shouldn't be necessary on most fasteners. These bikes were made without it and aren't known for coming apart unexpectedly. I use it on some stuff in the engine (cam sprocket bolts, cam tensioner blade cap, oil pressure switch and other bolts holding down parts under the right cover, etc) but not on the cover screws or stud nuts. I haven't had any come out unless accidentally left untightened. Red is pretty serious stuff and I wouldn't put it on anything with a Phillips/JIS head. I use red on the cam sprocket nuts and blue elsewhere.

Offline chrisbc55

  • Full Member
  • *
  • Posts: 69
Re: 350F enginne rebuild torque settings
« Reply #2 on: July 31, 2013, 12:55:54 PM »
Thanks for that Bodi. I found this below on the forum which shows torque setting for other nuts/bolts for a 750 which I assume would be the same.

http://forums.sohc4.net/index.php?action=dlattach;topic=52014.0;attach=78147;image

Cheers and thanks
Chris