Thread: Ridge Reamer
08-30-2008, 11:01 PM #1
Anyone local have a ridge reamer I could borrow for a few days??
I need one that will cover from about 3" to 3.5"...
08-31-2008, 10:20 PM #2
08-31-2008, 11:05 PM #3
auto zone loans them out for a 30 deposit. but, i tried rosses trick and it.s a majot pain in the ass. really diddnt work... at least with the autozone one.
09-01-2008, 09:29 AM #4
Marc, Here is a blurb I pulled from another site as to the "real" function of a ridge reamer.. A few guys around here are trying them to bore out the exit nozzle a bit to bring the revs up..
>>>"Actual function of the ridge reamer may not be apparent at first glance, but it's easy to figure out when you have one in hand. First rotate the engine crankshaft to lower the piston near the bottom of stroke. Insert the ridge reamer tool into the top of the cylinder bore, and adjust the cutter(s) to come into contact with the ridge. Oil the cutters and rotate the tool with a hand wrench to cut away the ridge as you progressively advance the cutter(s). When the entire ridge has been cut away the cylinder bore will be flush all the way up. Then you remove the tool, and you can easily push the piston with rings out the top of the bore with out damaging the ring grooves in the piston. "<<<
09-01-2008, 09:52 AM #5
thats why I like diesels they only have a carbon ridge that we cut out with a razor blade or sometimes I just force the piston out with a tool I made since its going back to warranty
09-01-2008, 10:02 PM #6
Kinda hard to explain, but basically, the one I borrowed from auto zone has a lower half that expands to fit the cylinder. then the cutter only works on the last 1/2 inch or so. on the nozzle, wher the thing needs to expand is cone shaped, so good luck getting it to fit tight and straight, and on top of that, the length of cut needed to to a nozzle is about 1". I'm going to do mine on the mill, but if I didn't have a mill, i would try a flapper sanding drum.
09-01-2008, 10:29 PM #7
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