Rancilio Silvia Mega-Mod part 10 Grouphead Shower
Index of Silvia Mega-Mod posts:
Introduction | Disassembly | Pressure Gauge | Brew+Steam Control | Brew Timer | Pre-Infusion
Water Level | Light | Boiler Insulation | Grouphead Shower | Drip Tray | Pump Drain
Power Timer | Insulated Steam Wand | Acknowledgments
Buy Silvia Mega-Mod eBook
Avi's Silvia Mega-Mod
My way to a better coffee...
DISCLAIMER - Important!
This bolt head leaves noticeable mark on the coffee puck and some suggest it has impact on the result. It also makes the cleaning of this area more difficult.
A. Using a sunk tool to machined the group jetbraker part and get a cone shape with angles matching the new countersunk screw.
B. Using M5x12 countersunk Hex head screw to replace the original one.
Tip: Hex head allows easier access with a tool to screw/unscrew it. If Phillips head is used instead, a 90 degree screwdriver is probably needed to access this limited area.
C. On a wise, I pressed the screen with the screw on one side against the jetbraker and the diffuser on the other side until the screw pressed the shower screen and distorted it to reach a flat surface with the screw head.
Tip: Use only Stainless Steel screw. A4 grade (marine grade). It is preferred if you want it to last for years.
Avi’s Silvia Mega-Mod Grouphead shower parts
Grouphead parts
Avi’s Silvia Mega-Mod Grouphead shower jetbraker modification
Machining the jetbraker
Avi’s Silvia Mega-Mod Grouphead shower screen modification
Pressing of the screen
Avi’s Silvia Mega-Mod Grouphead shower assembled mod
Grouphead shower modified shower screen
If using a lathe is not possible, it can be done with a hand-drill.
Index of Silvia Mega-Mod posts:
Introduction | Disassembly | Pressure Gauge | Brew+Steam Control | Brew Timer | Pre-Infusion
Water Level | Light | Boiler Insulation | Grouphead Shower | Drip Tray | Pump Drain
Power Timer | Insulated Steam Wand | Acknowledgments
Buy Silvia Mega-Mod eBook
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I’m curious. After this mod, can you use other brands’ screens (Simonelli, EMS, etc.) that already have the recess for the screw head or so you need to use Rancilio compatible replacement screens and press them in the vice grip?
Yes, you can use other screens that have the same dimensions.
Please remember you also need to mill the group jetbraker part and use a M5x12 countersunk Hex head screw to replace the original one.