Author Topic: Valve Adjustment HELP (CB450)  (Read 1322 times)

Offline redrover

  • Posts: 92
Re: Valve Adjustment HELP (CB450)
« Reply #10 on: Jun 18, 2017, 21:17:20 »
I can see exactly what I did now, I feel like such an idiot. The rocker is loose and not positioned like the other side.

Offline redrover

  • Posts: 92
Re: Valve Adjustment HELP (CB450)
« Reply #11 on: Jun 18, 2017, 21:22:39 »
YES! I managed to realign the rocker back into place and slide that rod back through!! When I spin it, it moves the rocker up and down smoothly on top of the valve!!

So should I put this side cover back on before adjusting the valves? Should I align the rocker a certain way before doing so?

Offline redrover

  • Posts: 92
Re: Valve Adjustment HELP (CB450)
« Reply #12 on: Jun 18, 2017, 21:26:19 »
Thanks cxman, I really appreciate it... although with all of your guys' help (and maybe a little luck), hopefully I can button this bad girl back together.

Regarding gauge size for the adjustment... .004 on the front valves and .003 on the rear valves?

Offline cxman

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  • Posts: 2430
Re: Valve Adjustment HELP (CB450)
« Reply #13 on: Jun 18, 2017, 22:15:11 »
yes to putting the support cover back on carefully dont force anything
read the manual to familiarize your self with setting these
 one of the adjusters is backwards to the rest
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline Flugtechnik

  • Posts: 3019
  • My bike is not transportation, it is a respite
    • Nixon and Me
Re: Valve Adjustment HELP (CB450)
« Reply #14 on: Jun 19, 2017, 10:29:16 »
This picture helped me when setting mine.  Basically the little notch on the adjuster should point kind of away from the spark plug.

Since you took the Cam Cover (cam bushing) off, I would also recommend that you check your cam timing to make sure that the cam chain did not shift teeth on you when it dropped down.  When you set the cam timing, you are setting the position of the intake and exhaust cams relative to the position of the crank.  The procedure is probably on somewhere.  It is unlikely that the cam shifted, but is possible.

Offline xulf13

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  • Posts: 983
  • West of Tennessee
Re: Valve Adjustment HELP (CB450)
« Reply #15 on: Jun 27, 2017, 18:28:29 »
Cool to hear things are on the mend. Let us know how it turns out. Don't feel too bad, you're learning and not being stubborn.

Sent from my iPhone using Tapatalk

Offline redrover

  • Posts: 92
Re: Valve Adjustment HELP (CB450)
« Reply #16 on: Jun 27, 2017, 22:07:32 »
Hey thanks for following up, and thanks for the support... I'll definitely keep the thread updated as progress continues... I only have time to work on the bike during weeknights after work and/or the weekends, and have been battling a stripped bolt on the stator cover.

The last person working on this bike obviously has not heard of anti-seize, nor JIS screwdrivers... so many bolts stuck or stripped!

Offline Bick54

  • Posts: 8
Valve Adjustment HELP (CB450)
« Reply #17 on: Jul 05, 2017, 10:27:42 »
To ensure proper cam timing take the left circular side cover off the bottom half of the engine and align the LT mark on the rotor to the pointer. Look on the cams on the sides where those "covers" you took off originally line up against the cam. There's a mark on the left side that should line up with a mark on the cam. If you don't see either of the cam marks at the LT rotor position give the crank a full turn counterclockwise til you hit LT again. You should see both marks on the cam and all of the marks should line up EXACTLY.  I love the Do the Ton forum but for these bikes you'll be better off going to there is an entire forum dedicated to this bike. Feel free to PM me with questions. Here's a picture tutorial from hondatwins about this valvetrain. It should answer all your questions.
« Last Edit: Jul 05, 2017, 10:37:11 by Bick54 »