Scubapro Mk11 DIN adapter install

[Mobulai]

Not to argue but are you certain? There's an obvious channel that fits the middle o-ring perfectly.

View attachment 914943View attachment 914944

No the extra groove isn’t an oring groove; that’s an update on all DIN retainer stems that happened around 00s that was happening alongside a recall for mk20s DINs

The overtorque issue I casually mentioned before was happening because the stem would dig into the body and with excessive torque could crack it; so they added a shoulder to act as a stopper so that overtorque will only damage the threads but not cause the body to crack (worst case during a dive)

So all DIN 200/300 stems from then onwards have that extra „groove“

 

[Mobulai]

Ok apparently this applies to Yokes as well

As the retainer is the cause of the recall-then yes. If your regulator has the older yoke or DIN retainer it is subject to the recall.

View attachment 616906

It is important to note that the damage done is to the regulator body-not the retainer. Additionally, the 3 vent saddle is supposed to indicate the recall has been accomplished-it has little to do with the actual reason for the recall.
View attachment 616908

 

[HamTrainChickenLaser]

The three vent saddle means the recall has NOT been done.

Scubapro® Recalls MK 20 Scuba Regulators for Service

Scubapro® USA has been providing a service upgrade kit via the authorized dealer network since May 2005 which contains a Yoke or Din retainer that prohibits over-tightening during annual service. Consumers can easily identify if the service upgrade has been completed by counting the vents on the...

www.cpsc.gov

 

[Mobulai]

The three vent saddle means the recall has NOT been done.

Scubapro® Recalls MK 20 Scuba Regulators for Service

Scubapro® USA has been providing a service upgrade kit via the authorized dealer network since May 2005 which contains a Yoke or Din retainer that prohibits over-tightening during annual service. Consumers can easily identify if the service upgrade has been completed by counting the vents on the...

www.cpsc.gov

Not necessarily, some (retainers) were swapped with the old saddle still in place (I have quite a few of these, even an mk25 (post recall) with the three vent saddle) — the stem was possible to buy on its own I guess (all my regs are 2nd hand)
But they should have swapped the saddle too to make it easier to identify
But not to diverge — since that recall/service bulletin all retainers have been upgraded, giving us the “universal” kit