Shelf-life of BUNA o-rings is something like 15 years (SAE ARP-5316 - 1998). Consider that the service kit you bought has been in the shop for a long time, and the manufacturer that assembled the service kit took those o-rings that were there for some time.
I've rebuild my SP MK25 with a service kit that was given to me with the used regulator. After 2 or 3 dives the piston o-ring started to leak. The o-ring was the problem, o-ring from the service kit.
Service kits are good for the plastic and metal parts, but for o-rings I prefer fresh o-rings from the local store.
I've rebuild my SP MK25 with a service kit that was given to me with the used regulator. After 2 or 3 dives the piston o-ring started to leak. The o-ring was the problem, o-ring from the service kit.
Service kits are good for the plastic and metal parts, but for o-rings I prefer fresh o-rings from the local store.
