

| Subject: | Re: FW: Cylinder Sleeves Quick Question |
| From: | Bob Donalds |
| Date: | Tue, 18 Apr 2000 21:23:37 -0400 |
jeff wrote I myself would > consider any sanding of the cylinder walls to be non productive, due to the > fact that you simply cannot ever hope to remain concentric with it. A > cylinder hone does this quite well however. Hope this helps to reassure > you, if it is cross hatching you have a good healthy cylinder wall. > jeff/ Florida the cheapo flex hones are ok but they wont straighten out a cylinder. sand paper will atleast brake the glaze and thats the important thing. I have seen engines that have had ring jobs without honing the engine smoked had to much crankcase pressure and low power. I was asked to look at the problem and soon discovered he had not honed the cylinders. I honed the cylinders with a ball hone it did not change the shape of the cylinder one bit but the problem was cured. the amount of taper in the cylinder wont change much with a flex hone. Cylinder taper will make the rings move in and out of the piston grove as it goes up and down in the cylinder. the engine will soon burn oil when I build the 2.0 air-cooled engine I size the cylinders to give the piston more room to grow. to do this I use my sunnen bench top hone with a ridged cylinder hone. it takes alot of work to increase the cylinder .001 and maintan a good deep cross hatch patern this honing is done wet with a vegtable oil coolant. motor oil,atf or marvel mystery oil brake down the glue in the honing stones. Bob
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