VESPA GT 200 Workshop Manual page 156

Engine
- The bushing housings in the crankcase are avail-
able in two categories, Cat. 1 and Cat. 2, as are
the crankshafts.
- The main bushings are available in three thick-
ness categories, identified by colour markings, as
shown in the table below.
Crankshaft
half-bearing
Bushing
category
A
B
C
Match the shaft with two category 1 crank webs
with the category 1 crankcase (or cat. 2 with cat.
2) Furthermore a spare crankcase cannot be
matched with a crankshaft with mixed categories.
The spare crankshaft has half shafts of the same
category.
Crankcase halves
Cat. 1
Cat. 2
Cat. 1
Cat. 2
N.B.
TO KEEP THIS POSITION OF THE BUSHINGS ON THE
CRANKCASE, FITTING IS FORCED ON STEEL RINGS IN-
SERTED IN THE CASTING OF BOTH CRANKCASE
HALVES.
N.B.
DO NOT TAKE THE MEASUREMENT ON THE TWO HALF-
SHELL COUPLING SURFACE SINCE THE ENDS ARE RE-
ENG - 156
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TYPE IDENTIFICATION
A RED
B BLUE
C YELLOW
Type "A" - Type "B" -
RED BLUE
1.970 ÷ 1.9703 ÷
1.973 1.976
Crankcase Internal bushing
halves cat- diameter after fit-
egory ting
1 29.025 ÷ 29.040
1 29.019 ÷ 29.034
2 29.028 ÷ 29.043
2 29.022 ÷ 29.037
Engine half
shaft
Cat. 1
Cat. 2
Cat. 2
Cat. 1
manuals search engine
Type "C" -
YELLOW
1.976 ÷
1.979
Possible fit-
ting
Original
Original and
spare
Original
Bushing
B
B
A
C
Vespa GT 125-200