camshaft halves

Waveblaster · Post by **Waveblaster** » Sat May 03, 2014 11:08 am

Hello

I have acquired a bundle of camshafts but they are mostly disassembled. They include ca77,cb72,cl72 ( at least ) components so a mixture of 360 and 180 degree motors. Is there an easy way to differentiate 360 and 180 cam halves?

cheers

Greg

G-Man · Post by **G-Man** » Sun May 04, 2014 2:55 am

Greg

CB72/77 has tacho drive on left hand end.

CA72/77 sprocket has longer bob-weights

CA72/77 when assembled will have corresponding cam lobes (left-right) at 180 degrees

CB / CL when assembled will have corresponding cam lobes (left-right) at 90 or 270 degrees

G

Waveblaster · Post by **Waveblaster** » Sun May 04, 2014 5:40 am

Thanks for the response Graham

The bob weights are they the arms on the mechanical advance?

the tacho drive side makes a good point of reference. I will have to lay everything out on the bench and match items up and use the verniers for cam lob size I guess . Assuming dream and CB will be different? Different grind perhaps.

Was concerned that halves could be inserted in more than one orientation.

regards

Greg

G-Man · Post by **G-Man** » Sun May 04, 2014 9:20 am

Greg

Yes the weights are the spring loaded arms. The dream ones extend further than the CB and CL ones. The dream lobes will be different with less lift if I remember correctly. I think CB and CL lobes are pretty similar. Each half has a missing spline which lines up with the sprocket so they can only be fitted in one orientation.

G

malcolmgb · Post by **malcolmgb** » Sun May 04, 2014 8:32 pm

I think I read somewhere that the CB & CL cam timing and profile are identical.