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Cam Timing CB77

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SMBH
honda305.com Member
Posts: 294
Joined: Thu Oct 24, 2013 1:16 pm
Location: Redditch, England

Cam Timing CB77

Post by SMBH » Fri Aug 01, 2014 2:35 pm

I have just put my 1964 CB77 top end together joining the cam chain as stated in Bill Silvers engine repair guide as so punch mark on cam sprocket is positioned at top with the horizontal sides of the cam sprocket parallel with the top surface of the cylinder head, right hand piston at TDC, T mark on rotor alined with index mark on stator, index mark on end of points cam pointing up (12 o clock)

I set all the valves clearances.

Now when I set the right hand valve clearances (tappets) on compression stroke on the T mark the the index mark on the end of the points cam is pointing down (6 o clock) I need to know before I reinstall the engine.

Please can someone tell me is this correct ?.

EDIT Sorted out.

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: Cam Timing CB77

Post by LOUD MOUSE » Mon Aug 04, 2014 5:09 am

DOWN is where it needed to be.
That is where you adjust the right side valves. ........lm

SMBH wrote:I have just put my 1964 CB77 top end together joining the cam chain as stated in Bill Silvers engine repair guide as so punch mark on cam sprocket is positioned at top with the horizontal sides of the cam sprocket parallel with the top surface of the cylinder head, right hand piston at TDC, T mark on rotor alined with index mark on stator, index mark on end of points cam pointing up (12 o clock)

I set all the valves clearances.

Now when I set the right hand valve clearances (tappets) on compression stroke on the T mark the the index mark on the end of the points cam is pointing down (6 o clock) I need to know before I reinstall the engine.

Please can someone tell me is this correct ?.

EDIT Sorted out.

SMBH
honda305.com Member
Posts: 294
Joined: Thu Oct 24, 2013 1:16 pm
Location: Redditch, England

Post by SMBH » Mon Aug 04, 2014 9:39 am

Thanks LM, I was a little confused when I rejoined the cam chain with the right cylinder on TDC and the T on rotor and the mark on points cam facing up so when I came to set the tappets on the right cylinder the cam pointer was pointing down.

Sorted now thanks. Mike.

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Mon Aug 04, 2014 11:02 am

You are welcome. ......lm
SMBH wrote:Thanks LM, I was a little confused when I rejoined the cam chain with the right cylinder on TDC and the T on rotor and the mark on points cam facing up so when I came to set the tappets on the right cylinder the cam pointer was pointing down.

Sorted now thanks. Mike.

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