Piston and Connecting Rod Assemblies

PISTON AND CONNECTING ROD ASSEMBLIES









Tools Required:
- J 5239 Connecting Rod Bolt Guide Set
- J 8037 Piston Ring Compressor


Remove or Disconnect
1. Oil pan assembly.
- Oil Pan

2. Oil pump assembly.
- Oil Pump

3. Cylinder head assembly.
- Cylinder Head Assembly

4. Ring ridge.
A. Turn crankshaft assembly (22) until piston assembly (86) is at bottom of its stroke.
B. Place a cloth on top of piston assembly (86).
C. Use a ridge reamer to remove ring ridge.
D. Turn crankshaft assembly (22) 50 piston assembly (86) is at top of its stroke.
E. Remove cloth and cutting debris.

Important: Place matchmarks or numbers on connecting rod assemblies (83) and connecting rod caps (81). Connecting rod caps (81) must be assembled to their original connecting rod assemblies (83).

5. Connecting rod nuts (80) and cap (81).
6. Connecting rod assembly (83) and piston assembly (86) out of top of engine block using J 5239.


Clean
1. Cylinder bores with hot water and detergent or with a light honing.
2. Swab bores with engine oil and a clean, dry cloth.


Install or Connect
1. Coat piston assembly (86), piston rings, cylinder bore, and bearing surfaces with engine oil.
2. Piston assembly (86) into its original bore using J 5239 and J 8037 and lightly tapping top of piston assembly (86) with a wooden hammer handle.
A. When installing piston assembly (86) and con necting rod assembly (83), stamped arrow on piston assembly (86) must point to front of engine while flange on connecting rod assembly (83) must face toward front of piston on left hand assembly and face toward rear of piston on right hand assembly.
B. Hold J 8037 firmly against engine block until all piston rings have entered cylinder bore.

3. Connecting rod caps (81) onto their original connecting rod assemblies (83).
- Align matchmarks or numbers which were placed on connecting rod assembly (83) and connecting rod cap (81) during removal.

4. Connecting rod nuts (80).
- Tighten Connecting rod nuts (80), evenly, to 50 N.m (37 lb. ft.).


Inspect
^ Connecting rod assembly (83) for binding by prying back and forth with a suitable tool.
^ If necessary, loosen and retighten connecting rod cap (81).


Measure^
- Connecting rod side clearance.

5. Cylinder head assembly. Cylinder Head Assembly
6. Oil pump assembly. Oil Pump
7. Oil pan assembly. Oil Pan