Valve stem seal on exhaust?

#1
Is it okay to run a valve seal on the exhaust valve of a GX200? Will the valve stem burn the seal? The main reason I want the seal is to keep the valve spring centered over the valve guide while running relatively thick shims.
 
#3
that would be a no ......your retainer should keep your valve spring center and with the correct shims they should stay center over the guides......
Well the seals are already in there and I hope not to take it apart again. I needed a seal on the intake because I was burning a little oil and hurting my $17 iridium plug and I'll just wait and see if my exhaust seal burns or if the oil keeps it cool. I machined new shims to fit on top of the seal instead of underneath them. I should've taken a picture.
 
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