Camshaft

[buickanddeere]

Sorry,I must be missing something as I have yet to pull the cam from my Petteroid.
Is it the Lister the Petter or both that pin the lobes to the camshaft?
What would motivate the Indians to use such a round about method of cam manufacture?

[Tom Reed]

$

[buickanddeere]

$

  I keep forgetting that. I work in an industry where it is more important to do it right than it is to save $$$.

[mobile_bob]

i can imagine it taking a relatively simply machine to make up cam lobes that are later pinned to a shaft

far easier than the machine it takes to grind lobes on a one piece camshaft.

also there is something to be said for being able to tailor the overlap simply by where you pin the lobes to the shaft.. maybe the same set of lobes fit a variety of applications?

bob g

[BruceM]

The holes through the camshaft have been a big problem for the Rajkot  twins, only occasionally a problem on the singles.

Drilling a hole in the round shaft seems structurally perilous if it is off center, and also seems more prone to positional errors.  We've seen pictures of both here from Rajkot.

I wonder if there is a way to keep the simplicity of separate cams and shaft, but fasten the cams via welding or weldbond?

Maybe the "kits" should include the cams and the shaft but not assembled?