Cam shaft bushings

[BRENT in 10-uh-C]

Bill (-and his boys) make a great camshaft however the issue is that rarely is the cam bores cylindrical when worn. Either way the bores really will need to be bored back on centerline.

Unfortunately, not all machine shops can do it. I have done it with my Tobin Arp machine but I am not sure if a Kwik-Way LBM can do it, --or at least do it accurately. Maybe someone who has a K/W LBM that has done it can tell of their experiences.

[Synchro909]

Originally Posted by BRENT in 10-uh-C

Bill (-and his boys) make a great camshaft however the issue is that rarely is the cam bores cylindrical when worn. Either way the bores really will need to be bored back on centerline.

Unfortunately, not all machine shops can do it. I have done it with my Tobin Arp machine but I am not sure if a Kwik-Way LBM can do it, --or at least do it accurately. Maybe someone who has a K/W LBM that has done it can tell of their experiences.

VERY VERY true if you want the timing gears to mesh properly. A friend of mine had someone bore the camshaft tunnel and fit bushes only to find that they were 0.009" off. I was there when he made eccentric bushes to compensate. The workshop's inaccuracy cost him a lot of work and the chance to take part in the National Rally but all good now.
Any GOOD workshop should be able to pickup the centreline and bore them properly. Making and fitting the bushes is not so difficult after that.