NM64Ford4000
New User
Hope all is well where ever you may be. I have a 1964 ford 4000 with a 172 4 cylinder gas engine. The #2 piston decided to walk the plank and from just below the piston rings it broke off. No major damage found. So I ordered an overhaul kit. I tore the engine down and removed and replaced the cylinder sleeves. My question is do .090" thick sleeves shrink on install? The bore should be 3.90" and I am measuring them at 3.877" it's a small difference but has a big impact on the pistons. The pistons do not have enough clearance to be installed (pistons measure 3.875). I have a machine shop lined up to bore it back out to 3.90" has anyone seen anything like this?