Subaru 1600 Service Manual page 97

b. Check both the gear and rotor and
replace if worn or damaged consid·
erably.
Outside diameter 29.70 29.74mm
of drive gear (1.1693 - 1.1709 in)
Outside diameter 40.53 40.56mm
of rotor (1.5957 1.5968 in)
c. Tip clearance between pump drive
gear and pump rotor
Measure the tip clearance and reo
place both the drive gear and rotor
as a set if the clearance exceeds the
limit.
Drive
Stand·
gear-to· ard
rotor tip
clearance Limit
0.02
0.12 mm
(0.0008 0.0047 in)
0.2 mm (0.008 in)
Drive gear
Rotor
A6-019
Fig.
3·122
Measuring drive gear-to-
rotor clearance
d. Side clearance between pump case
and pump rotor and between pump
case and drive gear
Measure the side clearance and reo
place either the rotor or case as
necessary if the clearance exceeds
the limit.
Rotor·to·
Stand· 0.03 - 0.13 mm
case and aId
(0.0012 - 0.0051
in)
gear-to-
case
Limit
0.2 mm (0.008
in)
clearance
ENGINE
(1800 cc engine)
Thickness
gauge
11600 cc engine)
1 Straight edge
2 Thickness puge
AS·OOS
Fig.3·123 Measuring rotor· to-case
and gear·ta-case clearance
e. Radial clearance between pump
rotor and pump case
Replace either the rotor or case as
necessary if the clearance exceeds
the limit.
Rotor-to-
Stand· 0.15 - 0.21 mm
case ard
(0.0059 - 0.0083 in)
radial
clearance Limit 0.25 mm (0.0098 in)
A6·021
Fig.3·124 Measuring rotor·to·case
clearance
2) Oil relief valve and relief valve
spring
Check the valve for fitting condi·
tion and damage, and the relief valve
spring for damage and deterioration.
Replace the parts if defective.
Relief valve spring
Free length
47.1 mm
(1.854 in)
Installed 33.5 mm
length (1.319 in)
Load when
38.05
4L97N
(3.88 - 4.28 kg,
installed
8.56 - 9.441b)
<I>
...
AS-008
1 Oil relief valve
2 ReUef valve SPrina
Fig.
3-125
Oil relief valve and spring
3) By-pass valve and spring
The checking method is as same as
that of paragraph 2).
I
By·pass valve spring
•
1,800 cc 1,600 cc
37.1 mm 40.7mm
Free length
(1.461 in) (1.602 in)
25.1 mm 31.1 mm
Installed length
(0.988 in) (1.224 in)
5.178
6.159 N 3.580
3.972 N
Load when
(0.528 - 0.628 kg,
(0.365 - 0.405 kg,
installed
1.164 - 1.385 Ib)
I
0.805 - 0.893 lb)
3-60