Carrier CT2-29-TV Workshop Manual page 58

2.3.4 Crankshaft (Continued)
2.3.4.f Crankshaft Journal to Crankshaft Bearing
Clearance
1. Put a strip of plastigage on the center of the crank-
shaft journal.
2. Install the bearing case and tighten the bolts to speci-
fication.
3. Remove the bearing case again.
4. Measure the amount of flattening with the scale to get
the clearance.
5. If the measurement exceeds the allowable limit re-
place crankshaft bearing.
6. If the allowable limit is not attainable with a standard
size bearing, install an undersize bearing by referring
to the table below.
NOTE
Be sure not to move the crankshaft while the
bearing bolts are tightened.
Factory
Clearance- -
Specification
Crankshaft
Allowable
Journal to Bearing
Limit
Crankshaft
Factory
.
Journal O.D
Specification
(Flywheel Side)
Crankshaft Factory
Bearing #2 I.D. Specification
Crankshaft
Factory
.
Journal O.D
Specification
(Intermediate)
Crankshaft Factory
Bearing #3 I.D. Specification
62--11161
0.028 to 0.051 mm
0.00110 to 0.00201 in.
0.20 mm
0.0079 in.
43.934 to 43.950 mm
1.72968 to 1.73031 in.
43.984 to 44.026 mm
1.73165 to 1.73331 in.
39.934 to 39.950 mm
1.57221 to 1.57284 in.
39.984 to 40.026 mm
1.57417 to 1.57583 in.
2--34
(Reference)
Oversize dimensions of crankshaft bearing 2 and 3 (0.2
mm / 0.008 in.) and (0.4 mm / 0.016 in.).
Oversize Bearing
Crankshaft Bearing 2
0.2 mm
0.008 in.
Crankshaft Bearing 3
Crankshaft Bearing 2
0.4 mm
0.016 in.
Crankshaft Bearing 3
(Reference)
Undersize dimensions of crankshaft journal.
Oversize 0.2mm / 0.008 in.
Dimension 1.8 to 2.2 mm radius
A 0.071 to 0.087 in. radius
1.0 to 1.5 mm dia.
*Dimension
0.0394 to 0.0591 in.
B
dia.
39.734 to 39.750 mm
Dimension dia.
C 1.56433 to 1.56496 in.
dia.
43.734 to 43.750 mm
Dimension dia.
D 1.72181 to 1.72244 in.
dia.
The crankpin must be fine- -finished to higher than 0.8- -S.
*Holes to be de- -burred and edges rounded with relief.
Part Number Marking
25- -36428- -01 020 US
25- -34390- -02 020 US
25- -34391- -04 040 US
25- -34390- -04 040 US
0.4mm / 0.016 in.
1.8 to 2.2 mm radius
0.071 to 0.087 radius
1.0 to 1.5 mm dia.
0.0394 to 0.0591 in.
dia.
39.534 to 39.550 mm
dia.
1.55646 to 1.55709 in.
dia.
43.534 to 43.550 mm
dia.
1.71394 to 1.71470 in.
dia.