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18 Jul 2016 8 Jan 2015 If the engine has an Achilles heel, it's a tendency for premature valve guide wear. There is a test you can perform to see if your LS7 has this 8 Apr 2017 Valve guide wear refers to excessive clearance between valve stem and valve guide. As guides wear, the side to side movement can cause One procedure for checking valve guide wear is as follows. Remove the cylinder head from the vehicle to a clean safe working area. Remove the valve springs 13 Jun 2014 To check guide wear, some machinists insert a valve stem into a guide and "feel" for looseness by wobbling the valve. Others may use a valve seat pilot tool to21 May 2004 What is the proper way to tell is your valve guides are worn past their limit? The method I use is to check the ID with a small dia. inside Valve guides are integral to the proper operation of engines. The guides help regulate the air intake and compression by keeping valves in place as the engine When replacing valves, it is very important to check the valve guides too. Consequential damage to valves can often be caused by old and worn valve guides. 30 Jan 2014 Tech: A Quick, Easy Check For Valve Guide And Seat Quality. There is a lot you can do as an engine builder without expensive measuring equipment. Here's how to check the quality of your valve guides and seats. If the valve guide has enough clearance, you can actually feel for the correct amount of “wiggle.” If the