Connecting Rod Bolt/Nut

CAUTION: Be sure not to scratch the cylinder wall or crankshaft journal with the connecting rod. Push the piston down until the connecting rod bearing seats on the crankshaft journal.

Note: Lubricate the pistons, piston rings, connecting rod bearings and entire cylinder bores with Super Premium SAE 5W-30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G prior to installation.

Note: Check piston rings for correct orientation prior to installing piston into cylinder bore.

Note: Install pistons with arrows on pistons to front of engine.

Note: After installation of each piston and connecting rod, rotate the crankshaft to verify smooth operation.

Turn the crankshaft until the crankshaft throw is at the bottom of the stroke. Using the special tools, install the piston, connecting rod, and connecting rod bearing assemblies Nos. 1 and 4. Tighten the bolts in three stages:
- Stage 1: Tighten to 23 Nm (17 ft. lbs.).
- Stage 2: Tighten to 43 Nm (32 ft. lbs.)
- Stage 3: Tighten an additional 90°.

Install the piston, connecting rod and connecting rod bearing assemblies Nos. 2 and 5. Tighten the bolts in three stages:
- Stage 1: Tighten to 23 Nm (17 ft. lbs.).
- Stage 2: Tighten to 43 Nm (32 ft. lbs.).
- Stage 3: Tighten an additional 90°.

Install the piston, connecting rod and connecting rod bearing assemblies Nos. 3 and 6. Tighten the bolts in three stages:
- Stage 1: Tighten to 23 Nm (17 ft. lbs.).
- Stage 2: Tighten to 43 Nm (32 ft. lbs.).
- Stage 3: Tighten an additional 90°.

Check the connecting rod side clearance for all of the connecting rods.