there should be a number stamped on the front of the camshaft. provided you know the manufactorer, go to their website, type the number in and you will see whats called a Cam Spec Card with all duration, lift, and lobe seperation.
255
The "bumps" you refer to are called the "lobes". They are a precise size that allows the valves to open and close correctly in an engine.
DOHC. Obviously a v-6 or v-8. DOHC- Double OverHead Camshafts. 2 camshafts per cylinder head.
Real simple exhaust camshafts are the camshafts nearest the exhaust manifolds ( outside if cylinder heads) intake camshafts are on the inside closer to center of engine.
4 Camshafts total. 2 above each cylinder bank. So... 2 per head.
A single overhead camshaft V-8 has 2 camshafts, one on each head.
To identify the size of a chain, you can measure the pitch, which is the distance between the centers of two consecutive links. This measurement will help determine the size of the chain.
Cam lobes
one
You have to put proper gap for lifters and use marks to make sure that timing and the positions of camshafts are correct.
the wankle engine has no camshaft
No, it is SOHC.