271172 Twin Cylinder L-Head repair manual BRIGGS & STRATTON.pdf
(
7197 KB
)
Pobierz
For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com
TABLE OF CONTENTS
(For Section Reference, See Pages VI through VIII.)
GENERAL INFORMATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1
IGNITION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2
CARBURETION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3
GOVERNOR CONTROLS & GOVERNOR
. . . . . . . . . . . . . . . . . . . . . . . .
Section 4
COMPRESSION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5
STARTERS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 6
ALTERNATORS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 7
LUBRICATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 8
ENGINE DISASSEMBLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 9
CYLINDERS & BEARINGS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 10
CRANKSHAFTS & CAMSHAFTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 11
PISTONS – RINGS – RODS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 12
ENGINE ASSEMBLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 13
MUFFLERS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 14
I
COMMON SPECIFICATIONS FOR OPPOSED TWIN CYLINDER ENGINES
Sleeve Bore Models: 400400, 400700, 402400, 402700, 404400, 404700, 422400, 422700, 462700
Aluminum Bore Models: 401400, 401700, 421400, 421700
Common Specifications – All Model Series
Armature Air Gap
Magnetron
Ignition
.008” – .012” (0.20 – 0.30 mm)
Breaker Point Ignition
.010” – .014” (0.25 – 0.35 mm)
Crankshaft End Play
Vertical Shaft Engines
.002” – .026” (0.05 – 0.66 mm)
Horizontal Shaft Engines
.004” – .012” (0.10 – 0.30 mm)
**Governed Idle Speed (all models)
1200 – 1400 RPM
Spark Plug Gap
.030” (0.76 mm)
Valve Clearance (Cold)
Springs Installed
Intake
.004” – .006” (0.10 – 0.15 mm)
Exhaust
.007” – .009” (0.17 – 0.22 mm)
Without Springs
Intake .006” – .008” (0.15 – 0.20 mm)
Exhaust .009” – .011” (0.22 – 0.28 mm)
** Top Governed Speed: See Briggs & Stratton Service Engine Sales Manual Microfiche MS-6255 or
Sales Manual MS-4052
Torque Specifications – All Model Series
Alternator (to cylinder)
20 in. lbs. (2.0 Nm)
Air Cleaner Base (to carb.)
25 in. lbs. (3.0 Nm)
Armature
25 in. lbs. (3.0 Nm)
Back Plate
150 in. lbs. (17.0 Nm)
Blower Housing
90 in. lbs. (10.0 Nm)
Breather
25 in. lbs. (3.0 Nm)
Carburetor (to manifold)
100 in. lbs. (11.0 Nm)
Carburetor Plug/Solenoid
100 in. lbs. (11.0 Nm)
Connecting Rod
190 in. lbs. (22.0 Nm)
Crankcase Cover/Sump
Horizontal Crankshaft
Crankcase Cover
225 in. lbs. (25.0 Nm)
Base
27 ft. lbs. (37.0 Nm)
Vertical Crankshaft
Steel Cover Plate
250 in. lbs. (28.0 Nm)
Aluminum Cover Plate
27 ft. lbs. (37.0 Nm)
Sump
225 in. lbs. (25.0 Nm)
Cylinder Head
160 in. lbs. (18.0 Nm)
Fan Retainer
150 in. lbs. (17.0 Nm)
Flywheel
150 ft. lbs. (203.0 Nm)
Governor Control Bracket
35 in. lbs. (4.0 Nm)
Governor Lever Nut
100 in. lbs. (11.0 Nm)
Intake Manifold
90 in. lbs. (10.0 Nm)
Spark Plug
200 in. lbs. (22.0 Nm)
Starter Motor
160 in. lbs. (18.0 Nm)
Starter Motor Thru Bolts
50 in. lbs. (6.0 Nm)
II
STANDARD AND REJECT DIMENSIONS – ALL MODEL SERIES
DESCRIPTION
STANDARD DIMENSION
REJECT DIMENSION
Cylinder
Bore (All)
3.4365” – 3.4375” (87.28 – 87.31 mm)
3.4405” (87.38 mm)
Out of round:
Aluminum Bore
.0025” (.06 mm)
Sleeve Bore
.0015” (.04 mm)
Main Bearing (Magneto)
1.379” – 1.380” (35.02 – 35.05 mm)
1.383” (35.12 mm)
Cam Bearing (Magneto)
.6252” – .6257” (15.88 – 15.89 mm)
.6275” (15.93 mm)
Valve Guide
.3145” – .3165” (7.98 – 8.04 mm)
.330” (8.38 mm)
Valve Stem
.310” (7.87 mm)
.308” (7.82 mm)
Crankcase Cover
Main Bearing (PTO)
1.379” – 1.380” (35.02 – 35.05 mm)
1.383” (35.12 mm)
Cam Bearing (PTO)
.6252” – .6257” (15.88 – 15.89 mm)
.6275” (15.93 mm)
Crankshaft
Crankpin
1.6235” – 1.6243” (41.23 – 41.25 mm)
1.622” (41.20 mm)
Magneto Journal
1.3776” – 1.3784” (34.99 – 35.01 mm)
1.376” (34.95 mm)
PTO Journal
1.3776” – 1.3784” (34.99 – 35.01 mm)
1.376” (34.95 mm)
Camshaft
Journals
.624” – .625” (15.85 – 15.87 mm)
.623” (15.82 mm)
Lobes
Intake 14, 16, 18, 20 HP
1.1525” – 1.1555” (29.27 – 29.35 mm)
1.150” (29.20 mm)
Intake 12.5 HP
1.0575” – 1.0605” (26.86 – 26.93 mm)
1.055” (26.80 mm)
Exhaust 12.5, 14, 16, 18 HP
1.1225” – 1.1255” (28.50 – 28.58 mm)
1.120” (28.45 mm)
Exhaust 20 HP
1.1525” – 1.1555” (29.27 – 29.35 mm)
1.150” (29.20 mm)
Connecting Rod
Crankpin Bearing
1.625” – 1.6255” (41.27 – 41.28 mm)
1.627” (41.32 mm)
Piston Pin Bearing
.8007” – .8011” (20.34 – 20.35 mm)
.802” (20.37 mm)
Piston Pin
.8003” – .8005” (20.32 – 20.33 mm)
.799” (20.30 mm)
.8005” – .801” (20.33 –
20.35 mm
)
Piston Pin Bearing (Piston)
.802” (20.37 mm)
Piston Rings
Ring End Gap
Aluminum Bore – Top & Center
.007” – .017” (.18 – .43 mm)
.035” (.90 mm)
Oil
.007” – .017” (.18 – .43 mm)
.045” (1.14 mm)
Cast Iron Bore – Top & Center
.007” – .017” (.18 – .43 mm)
.030” (.76 mm)
Oil
.007” – .017” (.18 – .43 mm)
.035” (.90 mm)
Ring Side Clearance (All)
.0035” – .006” (.09 – .15 mm)
.009” (.23 mm)
III
English to Metric Conversion Table
Fraction
Decimal
mm
Fraction
Decimal
mm
1/64
0.0156
0.3969
33/64
0.5156
13.0969
1/32
0.0312
0.7938
17/32
0.5312
13.4938
3/64
0.0469
1.1906
35/64
05469
13.8906
1/16
0.0625
1.5875
9/16
0.5625
14.2875
5/64
0.0781
1.9844
37/64
0.5781
14.6844
3/32
0.0938
2.3812
19/32
0.5938
15.0812
7/64
0.1094
2.7781
39/64
0.6094
15.4781
1/8
0.1250
3.1750
5/8
0.6250
15.8750
9/64
0.1406
3.5719
41/64
0.6406
16.2719
5/32
0.1562
3.9688
21/32
0.6562
16.6688
11/64
0.1719
4.3656
43/64
0.6719
17.0656
3/16
0.1875
4.7625
11/16
0.6875
17.4625
13/64
0.2031
5.1594
45/64
0.7031
17.8594
7/32
0.2188
5.5562
23/32
0.7188
18.2562
15/64
0.2344
5.9531
47/64
0.7344
18.6531
1/4
0.2500
6.3500
3/4
0.7500
19.0500
17/64
0.2656
6.7469
49/64
0.7656
19.4469
9/32
0.2812
7.1438
25/32
0.7812
19.8438
19/64
0.2969
7.5406
51/64
0.7969
20.2406
5/16
0.3125
7.9375
13/16
0.8125
20.6375
21/64
0.3281
8.3344
53/64
0.8281
21.0344
11/32
0.3438
8.7312
27/32
0.8438
21.4312
23/64
0.3594
9.1281
55/64
0.8594
21.8281
3/8
0.3750
9.5250
7/8
0.8750
22.2250
25/64
0.3906
9.9219
57/64
0.8906
22.6219
13/32
0.4062
10.3188
29/32
0.9062
23.0188
27/64
0.4219
10.7156
59/64
0.9219
23.4156
7/16
0.4375
11.1125
15/16
0.9375
23.8125
29/64
0.4531
11.5094
61/64
0.9531
24.2094
15/32
0.4688
11.9062
31/32
0.9688
24.6062
31/64
0.4844
12.3031
63/64
0.9844
25.0031
1/2
0.5000
12.7000
1
1.0000
25.4000
IV
Plik z chomika:
WITT33
Inne pliki z tego folderu:
277527 DOV 700-750 Series repair manual BRIGGS & STRATTON.pdf
(3713 KB)
87971 Resistance Tables Supplement(1).pdf
(92 KB)
190275GS Hand Held Generators.pdf
(3054 KB)
103149GS Generator Troubleshooting.pdf
(2129 KB)
87971 Resistance Tables Supplement.pdf
(92 KB)
Inne foldery tego chomika:
Zgłoś jeśli
naruszono regulamin