Question Mako K13 Inter Stage Pressure

[Blue Abyss]

I have a Mako K13 which the relief valve between the 2nd and 3rd stage started releasing after not being run for a few months. I figured this was the classic sign of worn valves and I replaced the valves in the third stage. The relief valve is still releasing. Anyone know what the appropriate pressure should be for this should be? I don't currently have any inter-stage pressure gauges so I don't know what it was before this issue reared its head.

 

[unrusstricted]

What resources are you using for this model? I have recently acquired one but the bauer website does not have much info on the K13... only have found a parts diagram basically. Do you have a service manual or parts manual? Sorry I can't help you with your problem, I wish I could! But thanks in advance!

 

[windyairman]

Hi
I dont have a manual for this old K13
From some old notes when i worked on one years a go
working pressure
first stage 4.5 bar
second stage 39 bar
final stage 327 bar
Safety valve set at
first stage 8 bar
second 50 bar
final was marked at 330 bar but blew at 327 bar

At a push i may have a parts list that i can photo copy & send land post
Can you post some photos of your unit

 

[unrusstricted]

(sorry to hijack your thread Blue Abyss)

Thanks windy,

Here are some pictures of my unit I took the other day. I can get more if you are interested, but I have since moved it to a relatives house. High of 0 degrees F where I am at so I was tinkering on my living room table....

I don't know too much about it but that it came out of a sailboat in ~1970s. I am assuming that it has been rebuilt sometime in its life as someone has painted the flywheel and 3rd(?) stage cylinder housing. Any thoughts? Is there a difference between OP's Mako and Bauer K13 or is it just branding nomenclature?

 

[Blue Abyss]

What resources are you using for this model? I have recently acquired one but the bauer website does not have much info on the K13... only have found a parts diagram basically. Do you have a service manual or parts manual? Sorry I can't help you with your problem, I wish I could! But thanks in advance!

The parts diagram an a very basic user manual are the only documents I have ever seen. I used to have a guy in the Pacific North West who worked for Bauer forever but he has retired.

 

[Blue Abyss]

Hi
I dont have a manual for this old K13
From some old notes when i worked on one years a go
working pressure
first stage 4.5 bar
second stage 39 bar
final stage 327 bar
Safety valve set at
first stage 8 bar
second 50 bar
final was marked at 330 bar but blew at 327 bar

At a push i may have a parts list that i can photo copy & send land post
Can you post some photos of your unit

Windy thanks for the reply, I had not logged into Scuba board for a while. That gives me what I was after. I will send some photos just for fun.