Dodge D150 1990 Service Manual page 621

9 - 34 3.9L ENGINE
ENGINE SPECIFICATIONS—3JL (CONT.)
•
PISTON RINGS
Number of Rings per Piston
Compression... — —
Oil
Oil Ring Type
Ring Width
Compression . .
Oil—Steel rails
Ring Gap
Compression
Oil—Steel rails
Ring Side Clearance
Compression
Oil—Steel rails
Service Rings
Ring Gap
Compression
Oil (Steel rails)
Ring Side Clearance
Compression —
Oil (Steel rails)
CONNECTING RODS
Length (Center to Center)
Weight (less bearing shells)
Side Clearance (two rods)
Piston Pin Bore Diameter
CONNECTING ROD BEARINGS
Type
Diameter and Width
Clearance Desired
Maximum Allowable •
Bearings for Service
CRANKSHAFT
Type
Bearings
Thrust Taken By
End Play
Maximum Allowable
Diametral Clearance Desired # 1 -
Maximum Diametral Clearance Allowed # 1 —
Diametral Clearance Desired # 2 , 3, and 4 —
Diametral Clearance Allowed # 2 , 3, and 4
Finish at Rear Oil Seal Surface.
MAIN BEARING JOURNALS
Diameter
Maximum Allowable Out-of-Round and/or Taper
Bearings for Service Available in
Standard and the following undersizes
CONNECTING ROD JOURNALS
Diameter
Maximum Allowable Out-of-Round and/or Taper
3
2
1
3-piece
steel rail
chrome-face
.0770"— .0780"
.0252" Max
.010"—.020"
.015"— .055"
.0015"— .0030"
.0002"— .005"
.010"—.020"
.010"— .062"
.0015"— .004"
.0002"— .005"
6.121"
726 Grams
.006"— .014"
.9819"— .9834"
Tri-Metal
2.126" x .842"
.0005"— .0022"
.0022"
Std., .001", .002",
.010", .012"
Counter-Balanced
Aluminum Lead
No. 2 Main Bearing
.002"— .007"
.010"
.0005"—.0015"
.0015"
.0005"— .0020"
.0025"
Diagonal Knurling
2.4995"—2.5005"
.001"
.001", .002", .003",
.010", .012"
2.124"—2.125"
.001"
J9009-103