mk5

I have several MK10s to service. I have come across a few comments here and there such as: Remove the polished surface from the piston stem o-ring. Micro-mesh the piston hard seat. These comments were made as modifications to try. I don't know what they mean or what improvement these...

I was working on designing a piston o ring bullet today and they have a really small base. 4.3mm. I was using a 10mm brim at .1mm thick. Looking at the brim after taking it off the bullet I thought it looked a lot like the shims that were in the regulator. Thickness seemed awful close...

Hello Folks, A friend founds in grand parents house an original box with Warranty, manual and a complete scubapro set first and second stage, never used. HIs grandpa was a scuba diver passed away last year. my friend knew I am a scuba diver and asked me about this box, if he could sell or...

I will be grateful for advice on my plans regarding first stages. I am joining the regulator self-service club. To keep the maintenance easy, I am switching over from Scubapro Mk25s to semi-vintage Mk5 and Mk10 first stages. I have two Mk5s, one with a thin all-metal yoke and one with a thick...

I was looking for an annotated MK5 Schematic and couldn't find one. So I decided to annotate a MK5 Schematic starting with the annotated MK10 Schematic previously posted here on SB as a reference point. Since I had to identify some of the SP o-ring part numbers on the MK5 schematic that are...

I'm considering getting a couple of used MK5s but can't seem to find the service manual. I found manuals for many other models on vintagedoublehose.com and frogkick.com. VDH has the manual for the R109 second stage. Is it possibly included in some other file?

Hello fellow Divers. I'm reluctantly looking to part with a book I purchased in 1993 while going through US Navy Deep Sea 1st Class Dive School in Panama City, FL. I purchased a signed, number 318 of 900 copy of Author Leon Lyons Helmets of the Deep. This is a Mint Condition, one owner book that...

I have a Scubapro MK5 regulator that has served me well since 1981 and had it regularly serviced until Scubapro stopped providing parts under warranty. Even then, I diligently had it serviced on a semi-regular basis. This week, on a dive trip, while changing tanks, I was checking my air and air...