Installation
INSTALLATIONNOTE: The timing chains are identical and when NEW can be used with either camshaft sprocket. Used chains MUST be installed on the same side they were removed from.
The timing chain tensioners, shoes and guides are identical and when NEW can be used on either timing chain. Used tensioners, shoes and guides MUST be installed on the same side they were removed from.
The camshaft sprockets are not identical. The right camshaft sprocket has a spacer attached to it. The left camshaft sprocket does not have a spacer.
CAUTION: When installing the timing chains and sprockets, the left bank of the engine must be timed first.
Fig. 10 Chain Guides / Tensioner Shoes:
1. Install the chain guides Fig. 10. Tighten the bolts to 6 Nm (53 in.lbs.) torque.
2. Install the tensioner shoes Fig. 10. Tighten the bolts to 12 Nm (9 ft.lbs.) torque.
Fig. 11 Crankshaft Keyway Position:
3. Turn the crankshaft so that keyway points straight up Fig. 11.
Fig. 12 Left Camshaft Slot Position:
4. Turn the left camshaft until slot in the front is positioned as shown in Fig. 12.
Fig. 13 Right Camshaft Slot Position:
5. Turn the right camshaft until slot in the front is positioned as shown in Fig. 13.
6. Install the cleaned tension filters Fig. 9.
Fig. 14 Crankshaft Keyway Alignment:
7. Turn the crankshaft in a clockwise direction until the crankshaft keyway is aligned with the centerline of the left cylinder bank Fig. 14.
LEFT TIMING CHAIN
NOTE: The crankshaft has three separate sprockets. One sprocket is for the left timing chain, one Is for the right timing chain and one is for the oil pump chain.
Fig. 15 Left Camshaft Sprocket To Timing Chain Alignment:
8. The left camshaft sprocket does not have a built-in spacer. Install the left timing chain so that the unpainted link between the two painted links is aligned with the stamped timing mark on the left camshaft sprocket Fig. 15.
Fig. 16 Crankshaft Sprocket To Chain Alignment:
9. The timing mark is located on the middle (or second) sprocket which is for the RIGHT timing chain. Install the left timing chain by positioning the single painted link of the LEFT timing chain onto the tooth of the rear sprocket. That tooth is directly behind the tooth of the middle sprocket that has the timing mark Fig. 16.
Fig. 17 Tensioner Lock:
CAUTION: The timing chain tensioner lock should not be removed. The lock Is held in place by a spring that pushes a steel ball against lock finger Fig. 17. If the lock is removed accidentally, replace the tensioner assembly because there is no way of checking the position of the lock finger in relation to the steel ball.
Fig. 18 Left Timing Chain Tensioner:
10. To install the left timing chain tensioner use a thin blade screwdriver to turn the ratchet counterclockwise. Then push the tensioner arm in. Position the tensioner over the filter and the tensioner shoe into the arm Fig. 18.
11. Tighten the mounting bolts to 6 Nm (53 in.lbs.) torque.
RIGHT TIMING CHAIN
Fig. 19 Crankshaft Alignment:
12. Rotate the crankshaft approximately 150° until the timing mark on the crankshaft middle sprocket is aligned with the lower oil pump cover mounting bolt Fig. 19.
Fig. 20 Right Camshaft Sprocket To Timing Chain Alignment:
13. The right camshaft sprocket has a built-in spacer. Install the right timing chain so that the unpainted link between the two painted links is aligned with the stamped timing mark on the right camshaft sprocket Fig. 20.
Fig. 21 Crankshaft To Timing Chain Alignment:
14. Single painted link on the bottom of the timing chain is aligned with timing mark on the middle sprocket Fig. 21.
CAUTION: The timing chain tensioner lock should not be removed. The lock is held In place by a spring that pushes a steel ball against lock finger Fig. 17. If the lock is removed accidentally, replace the tensioner assembly because there is no way of checking the position of the lock finger in relation to the steel ball.
Fig. 22 Right Timing Chain Tensioner:
15. To install the left timing chain tensioner use a thin blade screwdriver to turn the ratchet counterclockwise. Then push the tensioner arm in. Position the tensioner over the filter and the tensioner shoe into the arm Fig. 22.
16. Tighten the mounting bolts to 6 Nm (53 in.lbs.) torque.
17. Install the right camshaft sprocket bolt and tighten the bolt to 80 Nm (59 ft.lbs.) torque.
Fig. 23 Tensioner Ratchet:
18. Push both tensioner shoes in to release the ratchet of the tensioner from the locked position and then let the shoes out Fig. 23.
VALVE TIMING CHECK
NOTE: Once the crankshaft is rotated, the paint marks on the timing chains will not align with the marks on the sprockets. when checking valve timing, it is the position of the timing marks in relation to one another that is checked, NOT the position of the paint marks on the chains.
Fig. 24 Right Camshaft / Crankshaft Timing Mark Alignment:
1. Rotate the crankshaft 180°. Check that the right camshaft sprocket timing mark and the crankshaft timing are aligned as shown in Fig. 24.
Fig. 25 Left Camshaft / Crankshaft Timing Mark Alignment:
2. Rotate the crankshaft another 90°. The left cam shaft sprocket timing mark and the crankshaft sprocket timing mark should be aligned as shown in Fig. 25.
TIMING COVER INSTALLATION
1. Rotate the crankshaft so that the keyway points up. This will prevent the key from falling into the oil pan.
2. Put a small amount of Mopar Gasket-in-a-Tube Sealer at the mating lines of the cylinder head and block and the lower casing to block.
Fig. 26 Alignment Dowels:
3. Install the timing cover with a new gasket over the alignment dowels Fig. 26.
Fig. 27 Loctite 271 On Bottom Bolts:
4. Install the mounting bolts. On the four bottom bolts, apply Loctite 271 to the bolt threads Fig. 27. Tighten all front cover bolts to 12 Nm (9 ft. lbs.) torque.
5. Install the distributor drive/left camshaft sprocket mounting bolt. Tighten the bolt to 80 Nm (59 ft. lbs.) torque.
6. Install the crankshaft pulley. Apply Loctite 271 to the threads of the crankshaft pulley nut. Tighten the nut to 180 Nm (133 ft.lbs.) torque.
Fig. 28 Timing Cover Gasket Tab:
7. Cut the timing cover gasket tabs flush with the head Fig. 28. The tabs protrude above the front cover and cylinder head.
8. Install valve covers, for procedure see Cylinder Head Assembly/Valve Cover/Service and Repair. Service and Repair