Honda-SOHC

Hi,

Here are more images which show the end journals which while not as bad as the cam chain tunnel there is still wear.





Oddjob - I take it the hermetite is not good ! I will also try and get more images of the cam chain tunnel as you mentioned this has damage from broken chain. I am replacing all chains as a matter of caution as I have discovered a chain link in the oil pan and do not trust what is already there.



The camshaft does not look damaged to me but I will again get some more images for the community to best advise.

Your brake guy would not go a miss if you don't mind sharing as I am sure that they will need some attention when I get to that part of the project


Sent from my iPhone using Tapatalk

Hi,

I recently purchased a '72 CB500 which was a bit rough around the edges to say the least with the intention of rebuilding this as a Cafe style racer. I have been taking my time with the stripping down of the bike and am now at the point where I am taking the engine apart which is a new skill in itself.

I have read that camshaft bearing surfaces should be inspected and should be smooth and shiny and if there is excessive wear it or it is scratched it should be replaced. My question here is what warrants excessive wear/scratches as I have seen as bad surfaces on posts where used have said this should be fine. 

I have attached some images and would appreciate the professional opinion of the community.

There will be more questions the deeper down the rabbit hole I get.







Glenn

1972 CB500.

Looking for someone who could check valves for wear and if required replace. Cleaned and refaced with any other work that may be required. Valve seats recut if required and then washed and reassembling of the top end.

Cylinder head refaced and cylinder bore checked if a bore is required.

Hi Mickwinf,

I do as the plate my friend said he had was for a different set of carbs

Just sent another picture of the plate. and there are more cracks on the other side. So was just going to try replace the entire plate with components. All part of the 70's bike revival fun I guess.

Yup the very one. I have seen some variants of these so have added images for some clarity. As you can see its cracked straight through and there are two other broken pieces. SO best to replace if I can.

Hi,

I have a 1972/3 CB 500 and with a cracked carb stay plate which needs replacing. If anyone has one please let me know alternatively where would the best place be to get one of these in the UK.


G