Too high IP in a piston first stage

[lexvil]

Wait a minute if he reused the seat, couldn't there be a leak now in the seat?

It can happen, I feel we are discussing a mk2 where it’s pretty common for the seat to last a really long time.

 

[rhwestfall]

I've got a fairly common non balanced piston first stage.

It can happen, I feel we are discussing a mk2 where it’s pretty common for the seat to last a really long time.

I'm at the same conclusion...

 

[emoreira]

Wait a minute if he reused the seat, couldn't there be a leak now in the seat?

No leaks, IP is rock solid.

 

[emoreira]

It can happen, I feel we are discussing a mk2 where it’s pretty common for the seat to last a really long time.

Mares Rover 2S.

 

[rhwestfall]

yep, flow-by piston... MK-2 clone...

 

[Open Ocean Diver]

Maybe try flipping the seat, see if it changes.

 

[emoreira]

Maybe try flipping the seat, see if it changes.

Done, IP went from 12 to 11 bar (176 to 162 psi)
Still rock solid IP.

Thanks.

 

[lexvil]

Done, IP when from 12 to 11 bar (176 to 162 psi)
Still rock solid IP.

Thanks.

Slightly deeper cut than it appeared maybe, try the paper shim under the seat the Rob suggested.

 

[lowwall]

Done, IP when from 12 to 11 bar (176 to 162 psi)
Still rock solid IP.

Thanks.

The IP Spec is at 9.8-10.5 bar at 200 bar tank pressure (142-152psi at 2900psi). The service manual (http://lowwall.eu5.org/sm2017.pdf - 2S section starts at page 68) says "If there are no Plastic Washers present, and the IP is above the acceptable range, the Spring must be replaced."

 

[emoreira]

The IP Spec is at 9.8-10.5 bar at 200 bar tank pressure (142-152psi at 2900psi). The service manual (http://lowwall.eu5.org/sm2017.pdf - 2S section starts at page 68) says "If there are no Plastic Washers present, and the IP is above the acceptable range, the Spring must be replaced."

Thanks for the manual !!!