Rancilio Silvia Mega-Mod part 10 Grouphead Shower
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.
If using a lathe is not possible, it can be done with a hand-drill.
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