Chainsaw Repair

well i guess i will lower my standards on these saws and turn them loose at 5psi.
there are alot of saws that they used this or a similar setup on along with their trimmers. I have never cared for it but always managed to get them to pass a 7psi test by either just replacing everything with new or adding that No. 2 sealant to the new parts but i wondered if there was a better way. No.2 sealant is a flexible, non hardening, fuel resistant sealant but i have never felt comfortable using it. always feel like i am half a**ing it when i resort to that stuff.