How to restore a Scubapro D300, D350 & D400: Theory and Practice

[halocline]

I recently bought and restored a mk20/D400 combo and have it cracking at .8 inches of water. I am looking forward to diving it but it came with a cracked rubber diaphragm cover. Does anyone have a spare in good shape they are willing to part with?

I have a D400 that a friend left with me to sell for him. It’s the later version with the plastic orifice. I’m not a huge fan of it compared to the several D300s and an earlier D400 that I have. If that interests you send me a DM and make an offer. It would be a great donor.

 

[Redbeard04]

I have a D400 that a friend left with me to sell for him. It’s the later version with the plastic orifice. I’m not a huge fan of it compared to the several D300s and an earlier D400 that I have. If that interests you send me a DM and make an offer. It would be a great donor.

Thanks for the response, apparently I need another public post or two to DM you so here's one of them.

 

[DutchSubAqua]

Hi,

I'm close to overhauling 3x D400's. Question i have on the service kit...
On ebay/google i see 11.012.40 and 11.012.45 pass by.
They look very similar, but given different part numbers i suspect something is different.
Any relation or recommendation which one to use on a metal or plastic orifice ?

If anyone has parts collecting dust and is willing to sell, i might be interested as well.

 

[axxel57]

Hi,

I'm close to overhauling 3x D400's. Question i have on the service kit...
On ebay/google i see 11.012.40 and 11.012.45 pass by.
They look very similar, but given different part numbers i suspect something is different.
Any relation or recommendation which one to use on a metal or plastic orifice ?

If anyone has parts collecting dust and is willing to sell, i might be interested as well.

11.012.045 is the actual correct order number, wouldn't know what 11.012.040 could be.
I have plenty of D-Series Kits or LP seats, you can PM me if you like....

 

[Tanks A Lot]

As Axel said, 11.012.045 is the current service kit for the D350 and D400.

The 11.012.040 was a kit for the D300, D350 and D400 which included just the seat. Back then two kits were sold, one with the seat (11.012.040) and one with the whole poppet which includes the seat (11.012.041).

The current 11.012.045 for the D350 and D400 includes the whole poppet, just like the 11.012.041 did back then. As far as I'm aware, ScubaPro does not have a kit with only the seat anymore. I wonder if too many people broke things on the small poppet assembly to make them just sell the whole poppet and be done with it.

Depending on the price and condition of your poppets, just buying the kits with the seat in them instead of the whole poppets may make sense for you.

 

[DutchSubAqua]

11.012.045 is the actual correct order number, wouldn't know what 11.012.040 could be.
I have plenty of D-Series Kits or LP seats, you can PM me if you like....

Thanks. Will do, as soon as i get my 5 minimum posts.

 

[DutchSubAqua]

As Axel said, 11.012.045 is the current service kit for the D350 and D400.

The 11.012.040 was a kit for the D300, D350 and D400 which included just the seat. Back then two kits were sold, one with the seat (11.012.040) and one with the whole poppet which includes the seat (11.012.041).
View attachment 891286

The current 11.012.045 for the D350 and D400 includes the whole poppet, just like the 11.012.041 did back then. As far as I'm aware, ScubaPro does not have a kit with only the seat anymore. I wonder if too many people broke things on the small poppet assembly to make them just sell the whole poppet and be done with it.
View attachment 891287

Depending on the price and condition of your poppets, just buying the kits with the seat in them instead of the whole poppets may make sense for you.

Thanks for the elaboration. Reason i asked was because i came across this .040 service kit and wanted to know if it is compatible.

 

[rsingler]

Keep in mind that that "Service Kit" has no orings except the Dive switch and the bottom of the poppet. All the other static orings (which don't need changing every service, but need replacement occasionally) must be sourced elsewhere.