Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: 4wDaz on January 10, 2022, 02:56:41 PM

Title: Rocker shaft springs
Post by: 4wDaz on January 10, 2022, 02:56:41 PM
Hi all, just about to reassemble the rocker shafts on a engine that someone else stripped, I normally put the springs against the side with the wide flange on the rocker cover but this is different to how the part manual shows unless I’m reading it wrong?

(http://forums.sohc4.net/index.php?PHPSESSID=aftshk41uic3r9vh9ccllk3631&action=dlattach;topic=184297.0;attach=428508)


Found this on Julies rebuild, this is how I usually do it

(http://forums.sohc4.net/index.php?action=dlattach;topic=184297.0;attach=428602)
Title: Re: Rocker shaft springs
Post by: Deano400 on January 10, 2022, 03:17:22 PM
Mine are definitely as Julie's photo, springs against the flange. Looks like a error in the parts manual.
Title: Re: Rocker shaft springs
Post by: Nurse Julie on January 10, 2022, 03:30:01 PM
Yes, the spring definitely butts up to the side with the flange. If you fit them the other side of the rocker, it pushes the tappet way to far over and the tappet only clips the very, very edge of the valve stem top, it causes damage to the valve and tappet and makes an almighty clattering noise when the engine is running.
Title: Re: Rocker shaft springs
Post by: 4wDaz on January 10, 2022, 04:24:29 PM
Thanks  :)
Title: Re: Rocker shaft springs
Post by: Oddjob on January 10, 2022, 08:21:42 PM
Mine are definitely as Julie's photo, springs against the flange. Looks like a error in the parts manual.

No the parts manual is correct, it's just the way they have laid out the rocker shafts, it's not exactly drawn very well.

If you look at the nut which goes on the outside of the rocker cover, then the shaft, the next thing on would be the spring, then the rocker, then another rocker and finally spring. That's exactly like it is in the photo.
Title: Re: Rocker shaft springs
Post by: taysidedragon on January 10, 2022, 08:57:41 PM
The parts manual is definitely wrong. It shows the springs in the same positions on both rocker shafts,but the photo shows the exhaust side springs are positioned differently to the inlet side.
Title: Re: Rocker shaft springs
Post by: 4wDaz on January 10, 2022, 09:06:16 PM
Mine are definitely as Julie's photo, springs against the flange. Looks like a error in the parts manual.

No the parts manual is correct, it's just the way they have laid out the rocker shafts, it's not exactly drawn very well.

If you look at the nut which goes on the outside of the rocker cover, then the shaft, the next thing on would be the spring, then the rocker, then another rocker and finally spring. That's exactly like it is in the photo.
The inlet rocker shafts start with the spring but the exhaust starts with the rocker whereas in the manual all shafts start with a spring, unless im reading it wrong  :-\
Title: Re: Rocker shaft springs
Post by: Oddjob on January 10, 2022, 10:06:40 PM
You are correct, I was only looking at the inlet side, I presumed Honda would have done them the same but clearly not.
Title: Re: Rocker shaft springs
Post by: McCabe-Thiele (Ted) on January 11, 2022, 01:13:38 AM
http://www.sohc.co.uk/index.php/topic,26607.0.html


I had similar question last year.
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