Dodge Nitro. Manual - part 41

 

  Index      Dodge     Dodge Nitro - service repair manual 2007 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  39  40  41  42   ..

 

 

Dodge Nitro. Manual - part 41

 

 

Fig. 120: Piston And Connecting Rod Installation

 

2007 Dodge Nitro R/T 

2007 ENGINE 3.7L - Service Information - Nitro

  

Courtesy of CHRYSLER LLC 

1. Before installing piston and connecting rod assemblies into the bore, install the piston rings.  

2. Immerse the piston head and rings in clean engine oil. Position a ring compressor over the piston and 

rings. Tighten ring compressor. Ensure position of rings do not change during this operation.  

3. Position bearing onto connecting rod. Ensure that tabs in bearing shell aligns with slots in connecting rod. 

Verify that parting line of bearing is aligned with parting line of connecting rod.  

4. Lubricate bearing surface with clean engine oil.  

5. Install Connecting Rod Guides 8507 (4) onto connecting rod bolt threads. See Fig. 120

1 - "F" TOWARD FRONT OF ENGINE
2 - OIL SLINGER SLOT
3 - RING COMPRESSOR
4 - SPECIAL TOOL 8507

 

2007 Dodge Nitro R/T 

2007 ENGINE 3.7L - Service Information - Nitro

  

Fig. 121: Identifying Proper Connecting Rod Installation 
Courtesy of CHRYSLER LLC 

6. The pistons are marked on the piston pin bore surface with an raised "F" indicating installation position. 

This mark must be pointing toward the front of engine on both cylinder banks. The connecting rod oil 
slinger slot (2) faces the front of the engine. See Fig. 121.  

7. Wipe cylinder bore clean and lubricate with engine oil.  

8. Rotate crankshaft until connecting rod journal is on the center of cylinder bore. Insert rod and piston into 

cylinder bore and carefully position connecting rod guides over crankshaft journal.  

9. Tap piston down in cylinder bore using a hammer handle. While at the same time, guide connecting rod 

1 - MAJOR THRUST SIDE OF PISTON
2 - OIL SLINGER SLOT

 

2007 Dodge Nitro R/T 

2007 ENGINE 3.7L - Service Information - Nitro

  

into position on rod journal. 

10. Lubricate rod bolts and bearing surfaces with engine oil. Install connecting rod cap and bearing. Tighten 

bolts to 27 N.m (20 ft. lbs.) plus 90°.  

11. Install the following components: 

Cylinder head(s). See INSTALLATION.  

Timing chain and cover. See INSTALLATION).  

Cylinder head covers. See INSTALLATION).  

Oil pan and gasket/windage tray. See INSTALLATION.  

12. Fill crankcase with proper engine oil to correct level.  

13. Connect negative cable to battery.  

RINGS-PISTON 

STANDARD PROCEDURE 

PISTON RING FITTING 

CAUTION: Connecting Rod Bolts are Torque to Yield Bolts and Must Not Be 

Reused. Always replace the Rod Bolts whenever they are loosened or 
removed.

 

2007 Dodge Nitro R/T 

2007 ENGINE 3.7L - Service Information - Nitro

  

 

 

 

 

 

 

 

Content   ..  39  40  41  42   ..