several q's about CL 250 sleeves

Dick Eastman · Post by **Dick Eastman** » Fri Feb 05, 2016 8:33 pm

Has anyone got exact dimensions on the cylinder sleeve OD and the over all length for the CL 250? I also need a source for 250 base and cylinder head gaskets .
I got my lathe last week, a 12x36. I am going to make a dedicated fixture for 305 sleeves, using a Camlock D1-4 back plate. This will allow me to mount the fixture directly to the spindle nose, slide the sleeve into the fixture, and bore. I picked up a 5.5"dia. x 4.5" long piece of hot roll this week to make the fixture - 32lbs right now, but a lot of cutting to finish it. The mass of the fixture, and direct spindle mounting should give me good results- won't have to mess around indicating everything in.
Thanks,
Dick

G-Man · Post by **G-Man** » Sun Feb 07, 2016 3:25 am

Dick

I've got some NOS sleeves. Will get some measurements for you.

That lathe looks pretty nice. What make / size is it?

G

G-Man · Post by **G-Man** » Sun Feb 07, 2016 5:10 am

Dick

Measurements from a NOS sleeve

Top flange 68.85 diameter x 3.6 thick
Main sleeve diameter 62.04 x 77.8 high
Lower sleeve diameter 60.75 x 22 high

All dimensions in mm

Hope that helps

G

Hamamatsu Nippon · Post by **Hamamatsu Nippon** » Sun Feb 07, 2016 11:14 am

I'm curious, what is the wall thickness on a new sleeve?

G-Man · Post by **G-Man** » Sun Feb 07, 2016 11:18 am

Using only the power of arithmetic........ :-)

(62-54)/2 = 4mm

G

Hamamatsu Nippon · Post by **Hamamatsu Nippon** » Sun Feb 07, 2016 11:38 am

Another question, when installing a big bore kit on any old Honda, what is the safe minimum sleeve wall thickness after the bore job.

Dick Eastman · Post by **Dick Eastman** » Sun Feb 07, 2016 1:41 pm

G-Man wrote:Dick

Measurements from a NOS sleeve

Top flange 68.85 diameter x 3.6 thick
Main sleeve diameter 62.04 x 77.8 high
Lower sleeve diameter 60.75 x 22 high

All dimensions in mm

Hope that helps

G

Thanks, Graham
The lathe is an Eisen Machinery 1236G, and is a gap bed, 12" x 36", 240V, single phase. Wt, with cabinets, about 800 lbs. I had space considerations, and really don't need anything larger, or 3 phase. The spindle, ways, and tailstock barrel are all heat treated. Spindle is a D1-4 Camlock, with the ID being a #5 MT; tailstock #3 MT. I bought a 5C collet closer with it, as I have a set of 5c collets from a 1/16 to 1", in 1/64 increments. Has a 6" 3-jaw scroll chuck, and an 8" 4-jaw independent. The quality is very nice.
Took me 3 days to clean and detail, as it had a brown cosmoline on all exposed surfaces - you can see it in the photo [except for the bed ways, which were cleaned to be able to move the carriage to balance for lifting], took all the chucks apart, too, to clean and de-burr, and lube.