On Sat, 15 Apr 2006 23:42:20 GMT, ff wrote:

nortonfan wrote:

Hi group!

I'm restoring a vintage Triumph motorcycle and discovered that the
alloy cylinder block (Wellworthy, I believe) is cracked, near the
exhaust ports, through the sleeve and cylinder block.

Replacement sleevers are no longer available from Wellworthy and I
would like to make new ones to press in after welding the cylinder
block. My question is: where would I find suitable cast iron pipe for
making the sleeves? I have access to a lathe and milling machine, as
well as welding capability.

The intent is to restore this machine but not as a daily rider. That
said, I would rather do the job correctly.

Thanks,
Norman C



http://www.anandenterprise.com/product.htm

http://www.slingermfg.com/products.htm

http://www.mahle.com/C125705E004FDAF...JEGQV610STULEN


Had a Series 2 Landrover that put a rod through the block in Central
Africa in the seventies. We bored out the block to accept a Ferguson
35 (IIRC) sleeve that we modified to shrink/press fit, then rebored
the sleave to the proper dimensions to install a standard size land
rover replacement piston. Likely took close to 40 hours of work, but a
replacement engine was out of the question, and we DID have both a
boring bar and a large lathe on-site. We froze the sleave, and heated
the block with a big rosebud, then quickly pressed the frozen sleave
into the hot block. We let it sit a couple days, then reheated the
block and sleave together, and let it cool real slow to stress relieve
it, and were fortunate to find the block had not warped.
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