According to The New Parts List for Mercury Models Manufactured
1939 – 1953
Only postwar singles had thrust washers and both die cast and sand
cast crase models used SAME oart
number for upper thrust washer,
That does not agree with the two examples I have torn down at the
momnet, KD-3 die cast and KE-3
sand cast crankcast.
So, who are you going to believe
the List or my lying eyes?
Seriously, the KD-3 die cast has a thin washer and the KE-3 washer
is a steped washer that is much
thicker.
KD-3-1 had die cast crankcase with (usually) Eisemnn model 61K
magneto. KD-3-2 second version
had sand cast case with Bendix
magneto.
So my guess is the answer depends
upon which KD-3 version you are
working on,
You may have to wing it by making
a washer that fits the recess and
shaving it thin enough to give
end play of crankshaft… at a guess 6 to 12 thou. It is in manual somewhere.
Tom Thuerwachter may have the
part,
Louis
.
