|hankviii said: (quoted from post at 19:37:40 07/27/14) My old sleeves have an OD of 3.377|
New sleeves from tisco have an OD of 3.367
My bore measures at 3.373. Is that not standard for a 9n unsleeved bore? My serial number appears to be 9NT98487. Thanks
The nominal OEM cylinder bore on the N-series is 3.1875.
With .040 wall sleeves the nominal block bore is 3.1875 +.040 +.040 = 3.2675
With .090 wall sleeves the nominal block bore is 3.1875 + .090 + .090 = 3.3675
Your block bore is nominally .005 over stock .090 wall replacement sleeves. You can get .005 over sleeves that MAY work but you are dealing with an interference fit of .001 and on something non-standard like this there is always the chance that the interference fit will be loose. I don't know what YT's policy is on returning them if they will not work and at $42 each it's a $175+ investment. IMO your best bet is to take the block to a machine shop and let them fit custom sleeves. Oversize Sleeves @YT
TOH This post was edited by TheOldHokie at 06:29:10 07/28/14 2 times.