6.1L ENGINE
| DESCRIPTION |
SPECIFICATION |
| Engine Type |
90° V-8 OHV |
| Displacement |
6.1 Liters |
| 370 ( Cubic Inches) |
|
| Bore |
103 mm (4.055 in.) |
| Stroke |
90.9 mm (3.58 in.) |
| Compression Ratio |
10.3:1 |
| Firing Order |
1-8-4-3-6-5-7-2 |
| Lubrication |
Pressure Feed - Full Flow |
| Filtration |
|
| Cooling System |
Liquid Cooled - Forced |
| Circulation |
|
| Cylinder Block |
Cast Iron |
| Cylinder Head |
Aluminum |
| Crankshaft |
Forged Steel |
| Camshaft |
Hollow Assembled
Camshaft |
| Pistons |
Aluminum Alloy |
| Connecting Rods |
Powdered Metal |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Cylinder Bore Diameter |
103 mm |
4.055 in. |
| Out of Round (MAX) |
0.008 mm |
0003 in. |
| Taper (MAX) |
0.0127 mm |
0.0005 in. |
| Lifter Bore Diameter |
21.45 - 21.425 mm |
0.8444 - 0.8435 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Clearance |
0.0245 - 0.0515 mm |
0.00096 - 0.0020 in. |
| Measured at 38.0 mm ( 1.5 in.) Below Deck |
||
| Ring Groove Diameter |
||
| Groove #1 |
93.1 - 93.4 mm |
3.665 - 3.677 in. |
| Groove #2 |
91.6 - 91.8 mm |
3.606 - 3.614 in. |
| Weight |
435 grams |
15.34 oz |
| Piston Length |
54.70 - 55.30 |
2.153 - 2.177
in. |
| Ring Groove Width |
||
| No. 1 |
1.51 - 1.54 mm |
0.0594 - 0.0606 in |
| No. 2 |
1.51 - 1.53 mm |
0.0594 - 0.0602 in. |
| No. 3 |
3.030 - 3.055 mm |
0.1192 - 0.1202 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Clearance
In Piston |
0.006 - 0.015 mm |
0.00023 - 0.00059 in. |
| Diameter |
25.0 - 25.003 mm |
0.9843 - 0.9844 in. |
| Length |
64.785 - 65.215 mm |
2.551 - 2.568 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Ring Gap |
||
| Top Compression Ring |
0.30 - 0.40 mm |
0.0118 - 0.0157 in. |
| Second Compression Ring |
0.35 - 0.60 mm |
0.0137 - 0.0236 in. |
| Oil Control (Steel Rails) |
0.20 - 0.71 mm |
0.0079 - 0.028 in. |
| Side Clearance |
||
| Top Compression Ring |
.02 - .068 mm |
0.0007 - 0.0026 in. |
| Second Compression Ring |
0.02 - 0.058 mm |
0.0007 - 0.0022 in. |
| Oil Ring (Steel Ring) |
.019 - .229 mm |
.0007 - .0091 in. |
| Ring
Width |
||
| Top Compression Ring |
1.472 - 1.490 mm |
0.0579 - 0.0586 in. |
| Second Compression Ring |
1.472 - 1.490 mm |
0.0579 - 0.0586 in. |
| Oil Ring (Steel Rails) |
0.447 - 0.473 mm |
0.0175 - 0.0186 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Piston
Pin Bore Diameter |
23.955 - 23.975 mm |
0.9431 - 0.9438 in. |
| Side Clearance |
0.10 - 0.35 mm |
0.003 - 0.0137 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Main
Bearing Journal Diameter |
64.988 - 65.012 mm |
2.5585 - 2.5595 in. |
| Bearing Clearance |
0.023 - 0.051 mm |
0.0009 - 0.002
in. |
| Out of Round (MAX) |
0.005 mm |
0.0002 in. |
| Taper (MAX) |
0.003 mm |
0.0001 in. |
| End Play |
0.052 - 0.282 mm |
0.002 - 0.011 in. |
| End Play (MAX) |
0.282 mm |
0.011 in. |
| Connecting Rod Journal Diameter |
53.992
- 54.008 mm |
2.125 - 2.126 in. |
| Bearing Clearance |
0.020 - 0.074 mm |
0.0007 - 0.0029 in. |
| Out of Round
(MAX) |
0.005 mm |
0.0002 in. |
| Taper (MAX) |
0.003 mm |
0.0001 in. |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Bearing
Journal Diameter |
||
| No. 1 |
58.2 mm |
2.29 in. |
| No. 2 |
57.8 mm |
2.27 in. |
| No. 3 |
57.4 mm |
2.26 in. |
| No.
4 |
57.0 mm |
2.24 in. |
| No. 5 |
43.633 mm |
1.72 in. |
| Bearing
To Journal Clearance Standard |
||
| No. 1 |
0.040 - 0.080 mm |
.0015 - .003 in. |
| No. 2 |
0.050 -0.090
mm |
0.0019 - .0035 in. |
| No. 3 |
0.040 - 0.080 mm |
.0015 - .003 in. |
| No. 4 |
0.050 - 0.090 mm |
0.0019 - .0035 in. |
| No. 5 |
0.040 - 0.080 mm |
.0015 - .003 in. |
| Camshaft End
Play |
.080 - 0.290mm |
0.0031 - 0.0114 in. |
| DESCRIPTION |
SPECIFICATION |
| Intake |
|
| Opens (BTDC) |
15.0° |
| Closes (ATDC) |
268.0° |
| Duration |
283.0° |
| Exhaust |
|
| Opens (BTDC) |
251° |
| Closes (ATDC) |
35° |
| Duration |
286.0° |
| Valve Overlap |
50° |
| DESCRIPTION |
SPECIFICATION |
| Valve Seat Angle |
44.5° - 45.0° |
| Valve Seat Runout (MAX) |
0.05
mm (0.0019 in.) |
| Valve Seat Width (Finish) |
|
| Intake |
1.18 - 1.62 mm |
| (0.0464 - 0.0637 in.) |
|
| Exhaust |
1.48 - 1.92 mm |
| (0.0582 - 0.0755 in.) |
|
| Guide Bore Diameter (Std.) |
7.975 - 8.00 mm |
| (0.313 - 0.314 in.) |
| DESCRIPTION |
SPECIFICATION |
|
| Metric |
Standard |
|
| Body Diameter |
21.387 - 21.405 mm |
0.8420 - 0.8427 in. |
| Clearance (To Bore) |
0.020 - 0.063 mm |
0.0007 - 0.0024 in. |
| Dry Lash |
3.0 mm (at the valve) |
0.1181 in. |
| DESCRIPTION |
SPECIFICATION |
| Face Angle |
|
| Intake |
45.5° - 46.0° |
| Exhaust |
45.0° - 45.5° |
| Head Diameter |
|
| Intake |
52.67 - 52.93 mm |
| (2.07 - 2.08 in.) |
|
| Exhaust |
40.37 - 40.63 mm |
| (1.57 - 1.60 in.) |
|
| Length (Overall From Gage Line) |
|
| Intake |
124.38 - 124.76 mm |
| (4.897 - 4.912 in.) |
|
| Exhaust |
122.47 - 122.85 mm |
| (4.822 - 4.837 in.) |
|
| Stem Diameter |
|
| Intake |
7.734 - 7.954 mm |
| (0.312 - 0.313 in.) |
|
| Exhaust |
7.930 - 7.950 mm |
| (0.312 - 0.313 in.) |
|
| Stem - to - Guide Clearance |
|
| Intake |
0.021 - 0.066 mm |
| (0.0008 - 0.0025 in.) |
|
| Exhaust |
0.025 - 0.070 mm |
| (0.0010 - 0.0028 in.) |
|
| Valve Lift ( @ Zero Lash) |
|
| Intake |
14.5 mm (0.571 in.) |
| Exhaust |
14.0 mm (0.551 in.) |
| DESCRIPTION |
SPECIFICATION |
| Spring Force (Valve Closed) |
|
| Intake |
445.0 N +/- 22.0 N @ 47.5 mm (99.0 lbs +/- 4.0 - 9.0 lbs. @ 1.870 in.) |
| Exhaust |
445.0 N +/- 22.0 N @ 45 mm (99.0 lbs +/- 4.0 - 9.0 lbs. @ 1.772 in.) |
| Spring Force (Valve Open) |
|
| Intake |
1450.0 N +/- 68.0 N @ 33.0 mm. ( 325.5 lbs. +/- 15.3 lbs. @ 1.3 in. ) |
| Exhaust |
1450.0 N +/- 68.0 N @ 31.0 mm. ( 325.5 lbs. +/- 15.3 lbs. @ 1.22 in. ) |
| Free Length (approx) |
|
| Intake |
54.2 mm (2.133 in.) |
| Exhaust |
51.4 mm (2.023 in.) |
| Number
of Coils |
|
| Intake |
7.35 |
| Exhaust |
7.0 |
| Wire Diameter |
|
| Intake and Exhaust |
5.65 × 4.51 mm |
| (0.222 - 0.178 in.) |
|
| Installed Height (Spring Seat to Bottom of Retainer) |
|
| Intake |
47.5 mm (1.870 in.) |
| Exhaust |
45.0 mm (1.772 in.) |
| DESCRIPTION |
SPECIFICATION |
| Clearance Over Rotors (MAX) |
0.095 mm (0.0038 in.) |
| Outer Rotor to Pump Body Clearance (MAX) |
.235 mm (.009
in.) |
| Tip Clearance Between Rotors (MAX) |
0.150 mm (0.006 in.) |
| SPECIFICATION |
SPECIFICATION |
| At Curb Idle Speed (MIN)* |
25 kPa (4 psi) |
| @ 3000 rpm |
170 -
758 kPa (25 - 110 psi) |
| * CAUTION: If pressure is zero at curb idle, DO NOT run engine |
|