LP ports on SP MK 5 different sizes. WTF??

[JohnN]

I have a SP MK 5 I acquired from a local seller. This is the two LP port variant. It appears in very nice shape and came with a DIN conversion (looks original).

In testing it I thought it was leaking. Problem turns out to be the two LP ports are different sizes. I'm certain SP had a better idea, but can someone 'splain to me WTF they were thinking?

 

[Couv]

John,

This is the first I've heard of 2 lp ports on a Scuba Pro regulator being different sizes. (what sizes are they?) If this is the same reg you posted pictures of in other threads, it makes me wonder if a previous owner had a penchant to tinker as the modern DIN fittings do not usually fit that model.

 

[rhwestfall]

me thinks "butcher" job....

 

[boarderX47]

I have a mk5 with the 5 lp turret and they are all the same size. Not sure what happend to yours but that's odd.

Sent from my Galaxy S III

 

[AfterDark]

Orignally my MKV was a 2 lp I had it converted to 5 long ago but they were both the same size. I think LPs on reg are standard world wide. Also the 2 lp reg was made long before DIN was in use or at least common use in the USA.

 

[elmer fudd]

What do the threads look like on the larger port?

My guess is that someone cross threaded or otherwise mangled the threads on the larger side and then proceeded to drill and tap it. At 135 psi or thereabouts, I'd guess it's probably still safe, but I'd probably not dive with it anyway. It's not like there's a shortage of old single hose regulators out there.