Questions on lifter bore correction

[GallopinGhost]

Allen, Without the fixture, what do you use for a reference, and how do you choose the angle ? thanks

[Dwight Southerland]

Originally Posted by GallopinGhost

Allen, Without the fixture, what do you use for a reference, and how do you choose the angle ? thanks

Factory blueprints and a CNC is the best.

[Allen Sherman]

Sorry I'm slow responding, I don't usually get on here while I'm at the shop, but Dwight answered the question already, we have factory blueprint locations programmed into the CNC, and if needed we just make program changes if an angle or location change is required...

[GallopinGhost]

Thanks guys. Looking at some dated drawings, w/o dimensions no less, The BBM lifter looks to be 90 degrees to the deck, so at least for this block using the crank and cam centerline to swing the angle, then line up with cam centerline should work. I do dimensional inspection work for a living, so I enjoy understanding how this stuff is done.

Originally Posted by Allen Sherman

Sorry I'm slow responding, I don't usually get on here while I'm at the shop, but Dwight answered the question already, we have factory blueprint locations programmed into the CNC, and if needed we just make program changes if an angle or location change is required...