« previous next »
Pages: [1]   Go Down

Author Topic: CB500 timing chain  (Read 3761 times)

0 Members and 1 Guest are viewing this topic.

Offline tommytwotone

  • Full Member
  • *
  • Posts: 17
CB500 timing chain
« on: June 26, 2011, 06:05:44 PM »
I have a 72 CB500 that I recently acquired. I have replaced all of the wheel bearings and the steering bearings. cleaned the forks and replaced the seals. Replaced tires. The bike drives and runs good IMHO. The only things that seem to bother me is the noise from the engine(clutch rattle I presume). I adjusted the cam chain as per the service manual and now the engine has a rattle in the top end. Could I have loosened the cam chain by doing the adjustment? and should I be worried about it?
Logged
If it ain't broke yet, just give me a little more time...

Offline haill

  • Hot Shot
  • ***
  • Posts: 319
Re: CB500 timing chain
« Reply #1 on: June 26, 2011, 06:20:15 PM »
maybe just re-due the cam chain adjustment again making sure you've got the "t"mark 1.4 to the timing mark and both valves of #1 cylinder are free, checked by removing the tappet caps on the top of the motor. if tight spin the crankshaft around a full cycle till they are loose to the touch. then rotate the crankshaft clockwise till the spring peg on the advancer assembly is just to the right of the timing mark. Then loosen the locknut on the cam chain tensioner, then re-tighten same nut for it is spring loaded and will automatically adjust to take up any lack of tension on the camchain. 
Logged

Offline tommytwotone

  • Full Member
  • *
  • Posts: 17
Re: CB500 timing chain
« Reply #2 on: June 26, 2011, 06:29:46 PM »
Thanks I'll try it again.
Logged
If it ain't broke yet, just give me a little more time...

Offline That 70s Bike

  • Honey I'm not obsessed, see... I'm just an
  • Enthusiast
  • **
  • Posts: 185
  • SEE YOUR AD HERE!
Re: CB500 timing chain
« Reply #3 on: June 26, 2011, 06:56:31 PM »
You could always call Jenny @867-5309 8)
Logged
CB750K6- survivor   CB500K2, CB550K2- projects

Offline WarwickE36

  • Expert
  • ****
  • Posts: 761
Re: CB500 timing chain
« Reply #4 on: June 26, 2011, 07:10:23 PM »
Valve lash adjustment, Carb Sync

It will lessen the noise dramatically if these are out of spec.
Logged
" Why does anyone get offended by what someone does to their own bike? I dont get it. "

You made me think about it after I cheered knowing someone else would like to know what these control freaks are up to.
 Every time any owner strips whatever precious Honda part the horrified purists parts go up in value. That's not the part that bothers them.
 What bothers them is they sat up late at night, their breast full of wonder and estrogen, unable to sleep, dreaming about their lovely darling and all her glory... and next thing you know someone else doesn't share their emotional deluge and their reaction is they must spread their mind museum as far as they possibly can, taking over as much of the real world as possible.

Drink fast, drive slow, but ride it like you stole it

1974 Cb550 with style
2004 SV650s

Offline paulmac

  • Keep the shiny side up.
  • Full Member
  • *
  • Posts: 79
Re: CB500 timing chain
« Reply #5 on: June 27, 2011, 06:37:39 AM »
If the carbs are not in sync at idle you will also hear the primary chain rattle.
Logged
Pages: [1]   Go Up
« previous next »