Originally Posted by tbrown8338
i had already put both the oring and the umberalla on before i read this. would it cause any problems
The big issue with both is to be sure when the valve is at the peak open position the seals aren't being squished between the top of the valve guide and the bottom of the spring retainer. If the seal and O ring do get squished it will do nothing more than ruin the sealing capabilities, hard parts will NOT suddenly come flying out.
If the heads are on the bench this is easy to check with the valve spring removal tool, by putting a thick spacer over the installed retainer and valve stem so when you compress the spring the valve opens instead of the retaining being depressed to release the locks. Then with a machinists rule little 6 inch stainless job measure the height till you get to where the rocker would have the valve fully open. Then observe the clearance of the seal and O ring as it rests between the guide and retainer. Anything equal or greater than .050 inch is plenty.