Overhaul of my La Marzocco Linea espresso machine from 1993

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Front view of my machine bought on ebay needing a good repair

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Front-top view of the espresso machine before starting my restoration project

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Top-view of machine before rebuild

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Close-up of the right group cover and the hot water outlet valve

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Right front side of the machine

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Missing sight glass

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Pump and pump motor taken apart

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Flange of the motor

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Flange of pump

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Pump fittings

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Brew boiler with drain

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Left group head with shower

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Close up of group gasket

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Another close up of group gasket

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Left group seen from top

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Front view of left group disassembly

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Closer front view of left group disassembly

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Another front view of left group disassembly

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Bayonet ring seen from top

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Group body without bayonet ring

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Diffuser with group gasket

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Diffuser with diffuser screen removed

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Opened left group seen from top

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Close up of opened left group

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Damaged keybords

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Disassembly of the keybord

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Broken back plane

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Small repair

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Complete repair

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Repaired keybord

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Control panel seen from the back

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Hot water solenoid valve

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Pressure gauge pipes

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Top view control panel disassembly

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Empty control panel

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Dismantling the hot water outlet

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Hot water outlet solenoid valve

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Dismantling trim on frame

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Top-front view of machine

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Main terminal block seen from left side of the machine

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Left end of steam boiler

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Left end of brew boiler

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Main power switch and main terminal block

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Small terminal block:
old and new

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Machine without electrical wires

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Damaged control box

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Repaired control box

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Contacts of the pressure switch

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Steam boiler water inlet solenoid valve

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Assembly of group hydraulics

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Close up of goup hydraulics seen from front-left

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Close up of goup hydraulics seen from front-right

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Tube removed

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Removed group hydraulics

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Soldered tube leading to drain box

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Right side of soldered tube

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Drain box fitting

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Residue in drain box

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Top view of the espresso machine

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Brew boiler drain joint

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Removed group body from brew boiler

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Group body after removal from boiler.

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Look inside the brew boiler

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Closer look inside the brew boiler

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Heating element inside the brew boiler

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Close-up of heating element

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Opened steam boiler

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Steam boiler with heating element removed

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Frame of my la Marzocco Linea Espresso machine

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Upper part of frame removed

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Corroded steal frame

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Corroded steal frame after cleaning

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Steel frame after repaint

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Frame reassembled

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Opened solenoid valve

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Residue inside the solenoid valve

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Cleaned parts of the solenoid valve

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Opened flowmeter

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Cleaned flowmeter

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Cleaned steam boiler

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Steam boiler heating element

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Steam wand disassembly

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Cleaned parts of the steam wand assembly

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Steam wand assembly

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Steam wand exceeding the drain tray

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Bent steam wand

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Old steam wand

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Assembled steam wand

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Cleaned pipes

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Sight glass components

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Welded sight glass tubes

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New sight glass

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New tubes attached to the sight glass

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New tubes attached to the steam boiler

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Sight glass assembly

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Hot water outlet fitting

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Hot water valve assembly

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Cover of pressure gauge

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Inside of pressure gauge

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Leaking membrane

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Pump motor base plate

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Repainted pump motor base plate

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New custom made electronic ribbon cabel

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Old and new ribbon cables

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New programming switch

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Old and new frame parts

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New frame parts installed

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Cleaned relief valve

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Polished and cleaned group covers

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Disassembled diffuser

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Cleaned diffusor with brittle diffuser o-ring

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Cleaned and new parts of the group ready for assembly

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Cleaned diffuser still without o-ring

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Naked group seen from underneath

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Diffuser and group gasket installed into the group

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Diffuser screen installed with diffuser screw

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Pre-assembled brand new group seen from top

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Bayonet ring and group cover with gaskets

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Assembling bayonet ring and group cover

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Assembled group

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Ideal state of a brewing group of an espresso machine

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Alternativly a wrapped the diffuser screw with teflon

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Diffuser with teflon wrapped

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Installed diffuser and group gasket

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Both groups fully assembled

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Assembled groups with brew boiler

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Cleaned heating element

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Tubes around groups preassembled

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Brew boiler installed in the machine

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My la Marzocco Linea with both boilers intalled

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New wiring on the pressure switch

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Pressure switch installed into the Linea

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Hydraulic assembled

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Test for leaks / operating test

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All wiring replaced by silicone cables

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New cables on the left front corner

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Left side of machine seen from behind

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Right side of the machine

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Cabels ready for installation on the control box

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Opened control box

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Control box wired up

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Control box installed on right side of the espresso machine

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Right side of the machine seen from behind

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Almost finished La Marzocco Linea machine

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Machine with side covers on

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One of first shots

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Crema production

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Shot after rest

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My La Marzocco in its new working sourrounding

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Double Espresso

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End of shot

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Settled crema

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No Comment

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New single shot - Sequence

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Single shot sequence

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Single shot sequence

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Single shot sequence

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Single shot sequence

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Single shot sequence

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Single shot sequence

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Gratification for the unnumerable hours of hard work

© 2004-2005 Paul Elmar Germscheid

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