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rotorwrench · 11-15-2021, 07:07 PM

Langs has .015" oversize and .030" oversize valves. A person would need the reamer and reamer guide bushing for each size needed to center ream the old guide. A machine shop could likely set the block up to align bore the old guides as well as long as they have the equipment to do it. If the worn guide bore isn't too far off center then the reamer may work without a guide bushing.

Broken guides can be replaced with cast iron but it may require fabrication by the machinist doing the job. Some T motors had replaceable guides but not all that many from what I understand.

Some rebuilders may install valve guide sleeves instead of oversized valves.

11-15-2021, 07:07 PM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Badly worn Valve guides Langs has .015" oversize and .030" oversize valves. A person would need the reamer and reamer guide bushing for each size needed to center ream the old guide. A machine shop could likely set the block up to align bore the old guides as well as long as they have the equipment to do it. If the worn guide bore isn't too far off center then the reamer may work without a guide bushing. Broken guides can be replaced with cast iron but it may require fabrication by the machinist doing the job. Some T motors had replaceable guides but not all that many from what I understand. Some rebuilders may install valve guide sleeves instead of oversized valves. Last edited by rotorwrench; 11-15-2021 at 07:16 PM.