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Unread 03-07-2013, 12:32 AM
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Smithers Smithers is offline
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Now for the behind the scenes stuff at the machine shop. The keepers that hold down the valve spring retainers are SUPER small on these modern 4 stroke engines. The spring retainers have to be pushed down far enough to remove the keepers from holding the end of the valve stem. If you lose any one of the tiny keepers then it's game over until you order new ones. Trust me, the can go flying under all of the pressure needed to push and hold down on the valve springs.

A press is definitely the way to go in the process of holding down the valve springs in order to remove the tiny valve stem keepers. Once you have the spring retainers pressed down you still have to figure out how to remove the keepers. I use magnets to carefully remove them. My machinist uses a special tool he made to compress the assembly quickly.



The smaller valve keepers I have ever seen.


Last edited by Smithers; 03-07-2013 at 12:35 AM.
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