Can you look at photos of my cam lobes and tell me if they are ok? Thanks

They look good to me.

Those look worn. Especially the timing side intake lobe. The rest show scuffing and wear. What do the followers look like?

I'd happily use that
Don't get your cam followers mixed up

They are showing signs of wear but not too much, I have no problems still using that cam, maybe use better oil or a mixture of STP with your oil, but if you are going to tear into your bottom end then I would get it reground but only if you doing the bottom end as well.

That cam is knackered, while you have it apart treat it to a new one and refaced/new followers

If the cam was removed from the engine (I see it is not), then it would be prudent to measure the lobe heights.
Yesterday I measured the cam lobes on a TR6 engine and though the lobe surfaces look decent, there was a significant amount of wear, such that the lobe lift differed by about .025 from one lobe to another.

With the cam in the engine, if you have access to a dial indicator, a depth micrometer, or a vernier caliper, it is possible to measure lobe lift wear. Keep in mind you can't just compare overall height of the lobe: you need to measure the difference between base circle (the bottom side of the lobe) and the nose of the lobe.

Both exhaust lobes and intake lobes could be worn, so the comparison could be meaningless.
But if you note a significant difference between one exhaust (or intake lobe) to the other, you need a new cam.
Regardless of the condition of the lobe itself.

Difficult to be sure from your pictures, but that cam looks unserviceable to me.

Wipe the lobes thoroughly with tissue paper and try and get better focused close up pics.

Will do and thanks to all

If the cam is showing wear then what would your conrod bearings be like, with the barrels off I be going further with a bottom end rebuild, a cam regrind or new cam and followers reground, a fully rebuilt motor be better than doing a 1/2 job in the long run, but if selling the bike then so many do 1/2 a job and leave the problems for the next owner.
So hard to know with old oil still on the cam to really see what they are like. but if you keeping the Norton a full tear down be the go as you are nearly there.

Ashley

I could make that work, but only if I had experience with that cam and I liked it. If your wallet is fat and apparently everyone's is but mine, get you a new cam. You can also surface the tappets if you have a good lapping stone or very flat piece of glass. Example... The tappets shown below had a minor wear divot around the center from using a SS cam, which has a violent ramp that is actually worth it if the engine is built right. Anywho, it takes some time to do the work, but a lot less time than waiting on a machinist to send them back from machinist jail. For the nay sayers... I'm using the tappets shown with the same SS cam I redressed again in my 750 engine. It all works great. All you need is 800 and 1000 grit sand paper for metal and a touch of confidence and experience. Child's play



Pre-Commando 750 tappets.