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Olympia Cremina Rebuild Instructions Part 3
Olympia Cremina Rebuild Instructions Continued:
Boiler Gasket R&R
Water under machine, rusted bottom cover, shorted wiring.
Tools Required: 5mm hex wrench, small
screwdriver, putty knife or scraper, pencil and paper.
Most people avoid replacing this gasket because it
seems like too big a job, but actually it is neither complicated or
difficult and it requires very little machine disassembly.
the top boiler nut, cap and cover pieces, mostly for safety as not
to scratch or dent them.
machine on its back or side.
the expanded metal bottom cover held in with one small screw.
Loosen and remove the
cap bolts on the boiler bottom plate. This is aided by using a small
torque increaser, a small tube or most handily the barrel of a 6 way
screwdriver. As with the group, do not force, but break them free by
applying constant even force.
6 bolts are out take a small screwdriver or putty knife and separate
the boiler bottom plate from the upper part by prying.
With the bottom plate
off you now can clean off the old gasket with whatever tool seems
best suited for the task. Make sure you get it all and pay special
attention to the milled groove in the body of the boiler. This
groove is responsible for the sealing of the boiler so get it nice
the bottom of the boiler and DRAW A WIRING DIAGRAM. Do not rely on a
digital photo of the wiriing but take a minute to draw a diagram
noting the color of wires and the connections. This will not only
help you later but also bring a bit of enlightenment on just how the
machine works. You can remove the wires at any
time, but it is a bit easier to pull the spade connectors when the
bottom plate is off the boiler.
all wires to the heating element and bottom switch and push out of
time manually clean the element and scour out the boiler with steel
wool (it's great if there is a small handed person about to help you
here). Examine the inside of the boiler to make sure it is clean
with no flaking or deposits. It does not have to shine, this is
overkill, just be clean.
sealing surfaces are all cleaned up, place the new boiler gasket on
the bottom plate and insert one or two cap bolts to keep the gasket
the bottom plate with gasket to the boiler and start first one then
two then all 6 of the bolts, making sure the gasket is even all
the bolts in a star pattern so the plate meets the boiler evenly.
Take your time and feel the gasket as it compresses. Feel the
approximate torque of each of the bolts and try to get an even set
of the bottom plate against the boiler. Remember, you are taking
advantage of that small milled groove and do not need to flatten the
seal to paper thinness. Just get all the bolts good and snug and
once again, you can always tighten them a bit more later.
all of the wires using your wiring diagram as a guide.
boiler with water and cycle the machine a couple of times while
checking for leaks.
the boiler and check the tightness of the boiler bolts, good and
snug, but if it didn't leak, they are tight enough already but jsut
give them a once over with your wrench and cheater bar.
the bottom metal cover and the body panels.
Have an espresso and congratulate yourself on a
job well done.
About that boiler insulation......just what is the
OEM insulation? Asbestos? Asbestos like?
There were a lot of spray on insulation products that did not
contain asbestos so we are not speculating, but better to err on
the side of caution. This is one way to remove it if it is
loose or flaking in some area....this means it will slowly flake off
all around. Completely remove the boiler from
the frame, which is easiest during the boiler gasket replacement
since you will have the element off at this point. Place
the entire boiler in a bucket of water and soak overnight.
Place the wet soaked boiler in the center of a newspaper on a plastic
garbage bag and scrape off the wet coating with a putty knife or
other blade. Gather up the debris and dispose of properly
(no recommendation here). This should clean up the
boiloer pretty well and some steel wool scrubbing while in the bucket
of water will finish the job.
Continue to Olympia Cremina Rebuild Instructions, Part 4 for Sight Glass Seal R & R