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I'm in the middle of tearing apart my motor, and I'm at the point where I need to, uh, ream the ridge. Anyway, I rented a ridge-reamer from AutoZone, and the more I look at it, the more confused I get. This is saying a lot.
Can anyone guide me as to the appropriate use of it? My ridge reamer looks too small to work on the L-48 hugeness that is my cylinder(s). But then I wake up and I know I'm just not using the reamer correctly.
depending on what type it is... they all do mostly the same thing. set it into the cylinder, it should have a cutter blade(s) at the top and you crank it round and round until the ridge is removed/flush with the cylinder bore.
some of them expand as you turn it and some have a second nut you crank to flip out the cutter.
I've seen many blocks damaged by using a ridge reamer. If your block has a ridge of .004 the block should be bored and pistons replaced. You probably want to do just rings. I'm not sure what tool you have, does it sit on top of cylinder or does it have three centering legs and a fine threaded post with an adjustable head? Tom
Unless your planing on reusing the pistons and are having no machine work done on the block, why bother?
Removing the ridge really only saves the ring lands when you remove the pistons.
As far as the block goes, if you have that much of a ridge it will need boring anyway :cheers:
Thanks guys. I need to go back out to the garage and take a closer look at what kind it is. I guess I was hoping it would come with directions. I'm not sure what path I'm going to take with this motor. Not yet. I was hoping to get away with a re-ring, but when I looked at the tops of the pistons and other stuff, well, it's kind of ugly. The pistons are heavily coated with charcoal thick soot, and I can't see any crosshatching. I'm pretty sure it needs an overbore.