I rescued (loosely applied term) this compressor as it was being loaded
on a neighbor's truck on its way to the dump:
http://www.wallacecompany.com/machine_shop/Sears_Compressor2/
It seems to be in decent shape except the cylinder bores. The plan is to
re-sleeve the bores using:
http://www.ebay.com/itm/391601872464
http://www.wallacecompany.com/machine_shop/Sears_Compressor2/IMG_1949-1a.jpg
http://www.wallacecompany.com/machine_shop/Sears_Compressor2/IMG_1950-1a.jpg
It looks like I can get two four inch long sleeves from the 8.25" long
sleeve(use csl485 with 'find'):
http://www.mellingcylindersleeves.com/Portals/8/pdf_catalog/cylinder_catalog.pdf
My first thought is to set up a boring bar and do a straight plunge in Z
until I get the bore size that I want, but then again I have a CNC and
I'm wondering if it would be better to use an end mill or fly cutter and
do a helical path in Z instead? The plan is to hone to the final size
for the sleeve, set the sleeve (with dry ice), and hone the sleeve to
the final 2.7500" ID.
Has anyone tried helical boring for piston bores?
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/
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