Cam repair

[Dslam]

Hi all,
Looking for some advise!
I am rebuilding a 1926 Douglas EW350 bike and need some advice with the cams, followers and tappets. They are pitted and worn in various degrees and wondered if anyone could tell me how to go about their repair and where to go. I know that they can be metal sprayed or welded and ground. I have been told various and conflicting things about the pros and cons of these processes. The thing that worries me is that the cams are integral with the gear wheel and that heat in the process could soften the case hardening or distort the gear wheels and that the sliding surfaces should be repaired using dissimilar metals. For those of you who may be interested I have linked some photo's. Any recommendations as to how and where would be great.
Thank
Dslam

[Dslam]

and this

[Dslam]

and this.....................

[BikerGran]

Probably find lots of advice (and maybe parts) on the Douglas forum?

Click Here

[Dslam]

Thanks for the link. I tried that about a month ago but no help was forthcoming.

[hunter]

Try this man,http://www.motorcyclewebsite.com/home/c1133_camshafts,
he does a lot of camshaft work,worth a chat he's a nice guy.

[morrag]

In the dark and distant days of my youth, when spares were often impossible to obtain, usually because as a very young apprenticewith no dosh! I had several cams built up using, in those days "Stellite" rods, courtesy of our very good factory welder, then re-profiled by hand. Now today there are obviously better surfacing rods available, and if the heat input is suitably monitored you will be ok, and I doubt you will effect the case hardening of the wheels, if indeed they are case hardened. All you need is a tidy welder, and a steady hand when re-profiling, so good luck and onwards and upwards!  Morrag

[Dslam]

Thanks for the much needed advice. Onwards to the shed.....................