Subaru Legacy 2003 Service Manual page 284

6. CRANKSHAFT AND CRANKSHAFT
BEARING
1) Clean the crankshaft completely and check for
cracks by means of red lead check etc., and re-
place if defective.
2) Measure the crankshaft bend, and correct or re-
place if it exceeds the limit.
NOTE:
If a suitable V-block is not available, install the #1
and #5 crankshaft bearing on cylinder block, posi-
tion the crankshaft on these bearings and measure
the crankshaft bend using a dial gauge.
Crankshaft bend limit:
0.035 mm (0.0014 in)
Journal O.D.
Standard
Bearing size
(Thickness at center)
Journal O.D.
0.03 (0.0012)
undersize
Bearing size
(Thickness at center)
Journal O.D.
0.05 (0.0020)
undersize
Bearing size
(Thickness at center)
Journal O.D.
0.25 (0.0098)
undersize
Bearing size
(Thickness at center)
O.D. ... Outer Diameter
CYLINDER BLOCK
3) Inspect the crank journal and crank pin for wear.
If they are not within the specifications, replace the
bearing with a suitable (undersize) one, and then
replace or recondition the crankshaft as necessary.
When grinding the crank journal or crank pin, finish
them to specified dimensions according to the un-
dersize bearing to be used.
Crank pin and crank journal:
Out-of-roundness
Taper limit
Grinding limit
ME-00183
Crank journal diameter
#1, #3
59.992 — 60.008 59.992 — 60.008
(2.3619 — 2.3625) (2.3619 — 2.3625)
1.998 — 2.011 2.000 — 2.013
(0.0787 — 0.0792) (0.0787 — 0.0793)
59.962 — 59.978 59.962 — 59.978
(2.3607 — 2.3613) (2.3607 — 2.3613)
2.017 — 2.020 2.019 — 2.022
(0.0794 — 0.0795) (0.0795 — 0.0796)
59.942 — 59.958 59.942 — 59.958
(2.3599 — 2.3605) (2.3599 — 2.3605)
2.027 — 2.030 2.029 — 2.032
(0.0798 — 0.0799) (0.0799 — 0.0800)
59.742 — 59.758 59.742 — 59.758
(2.3520 — 2.3527) (2.3520 — 2.3527)
2.127 — 2.130 2.129 — 2.132
(0.0837 — 0.0839) (0.0838 — 0.0839)
ME(H4SO)-87
0.020 mm (0.0008 in) or less
0.07 mm (0.0028 in)
0.250 mm (0.0098 in)
#2, #4, #5 2000 cc
51.984 — 52.000
(2.0466 — 2.0472)
1.492 — 1.501
(0.0587 — 0.0591)
51.954 — 51.970
(2.0454 — 2.0461)
1.510 — 1.513
(0.0594 — 0.0596)
51.934 — 51.950
(2.0446 — 2.0453)
1.520 — 1.523
(0.0598 — 0.0600)
51.734 — 51.750
(2.0368 — 2.0374)
1.620 — 1.623
(0.0638 — 0.0639)
MECHANICAL
ME-00184
Unit: mm (in)
Crank pin diameter
2500 cc
51.984 — 52.000
(2.0466 — 2.0472)
1.490 — 1.502
(0.0587 — 0.0591)
51.954 — 51.970
(2.0454 — 2.0461)
1.504 — 1.512
(0.0592 — 0.0595)
51.934 — 51.950
(2.0446 — 2.0453)
1.514 — 1.522
(0.0596 — 0.0599)
51.734 — 51.750
(2.0368 — 2.0374)
1.614 — 1.622
(0.0635 — 0.0639)