This has more to do with the rod bolts(different styles)

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Illustration 1	g01025099

The bolts that are marked "X" are 216 mm (8.5 inch) long. The lengths of the remaining bolts are 194 mm (7.6 inch) long.

Apply 6V-4876 Lubricant to the bolt threads and both sides of the washers. Tighten the bolts in the following step sequence:

 

1. In a numerical sequence, tighten bolts 1 through 26.

   Torque for bolts ... 270 ± 15 N·m (200 ± 11 lb ft)

 

1. In a numerical sequence, tighten bolts 1 through 26.

   Torque for bolts ... 450 ± 15 N·m (330 ± 11 lb ft)

 

1. In a numerical sequence, again tighten bolts 1 through 26.

   Torque for bolts ... 450 ± 15 N·m (330 ± 11 lb ft)

Illustration 4	g00635502
Front view

(8) Dimension from the centerline of the crankshaft bearing bore to the top of the cylinder block

New ... 425.45 ± 0.15 mm (16.750 ± 0.006 inch)

Minimum ... 425.02 mm (16.733 inch)

Note: The total flatness of the top contact surface of the cylinder block must be within 0.10 mm (0.004 inch). The flatness must also be within 0.05 mm (0.002 inch) for any 177.5 mm (6.99 inch) section of the surface.

(9) Bore in the cylinder block for the main bearings

(10) Main bearing cap

Main bearing cap width ... 215.900 ± 0.025 mm (8.5000 ± 0.0010 inch)

Width of the cylinder block for the main bearing cap ... 215.900 ± 0.013 mm (8.5000 ± 0.0005 inch)

(11) New dimension from the centerline of the crankshaft bearing bore to the bottom of the cylinder block pan rails ... 165.10 ± 0.10 mm (6.500 ± 0.004 inch)

(12) Main bearing cap bolts

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Illustration 5	g00562863
Torque-turn tightening method for main bearing cap bolts

Use the following procedure in order to tighten the main bearing cap bolts:

 

1. Apply clean engine oil to the threads of the bolts.

 

1. Tighten the bolts first on the bearing tab side (1) of the cap.

   Torque for bolts ... 260 ± 14 N·m (190 ± 10 lb ft)

 

1. Tighten the bolts on the opposite side (2) .

   Torque for bolts ... 260 ± 14 N·m (190 ± 10 lb ft)

 

1. Put a mark on each bolt and each cap.

 

1. Tighten the bolts on the opposite side (3) from the mark to angle (A) .

   Angle (A) ... 120 ± 5 degrees (2 flats)

 

1. Tighten the bolts on the bearing tab side (4) of the cap from the mark to the following value.

   Angle (A) ... 120 ± 5 degrees (2 flats)

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Illustration 6	g00285129
Right side view

(13) Pipe plug

Apply 5P-3413 Pipe Sealant on the threads of the pipe plugs before installation in the cylinder block.

(14) Piston cooling jet

To prevent damage to the piston cooling jets during service, the piston cooling jets must be removed.

Tighten the bolts that hold the piston cooling jets to the following torque. ... 40 ± 8 N·m (30 ± 6 lb ft)

Minimum permissible clearance between the piston, the piston cooling jet, and the crankshaft ... 0.63 mm (0.025 inch)

(A) Bore in connecting rod for the piston pin bearing ... 59.640 ± 0.013 mm (2.3480 ± 0.0005 inch)

Note: The connecting rod must be heated for the installation of the piston pin bearing. Do not use a torch.

(B) The connecting rod must be heated from 175 to 260 °C (347 to 468 °F) for the installation of the piston pin bearing. Maximum distance for heating the connecting rod ... 85.0 mm (3.35 inch)

(C) Diameter for the bearing of the piston pin ... 55.035 ± 0.008 mm (2.1667 ± 0.0003 inch)

Thoroughly lubricate the piston pin with clean engine oil prior to assembly of the piston and the connecting rod.

(1) The bearing joint must be within ± 5 degrees at either location.

(D) Distance between the centers of bearings ... 261.62 ± 0.05 mm (10.300 ± 0.002 inch)

(2) Etch the cylinder number on the connecting rod and the cap in this location. Mark the connecting rod and the cap with a number 1 through 6. Mark the numbers on the same side of the connecting rod as the bearing tab slots.

(3) Connecting rod bolts

Use the following procedure in order to tighten the connecting rod bolts.

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Illustration 2	g01431988
Torque-turn tightening method for connecting rod cap bolts

 

1. Lubricate the bolt threads and the seating faces of the caps with 4C-5593 Anti-Seize Compound .

 

1. Tighten the connecting rod bolts.

   Torque for bolts ... 90 ± 8 N·m (65 ± 6 lb ft)

 

1. Put a mark on each bolt and each cap.

 

1. Tighten each bolt from the mark to angle (A) .

   Angle (F) ... 90 ± 5 degrees (1/4 turn)

(E) Bore in the connecting rod for the bearing for the crankshaft connecting rod journal ... 96.200 ± 0.013 mm (3.7874 ± 0.0005 inch)

If you have the connecting rods, with two dowel pins and holes(between cap and rod), THEN the dowels go to the front of the engine.

This is just std spec for 3/8" NC bolt = ( 35  +/-  7  ft lbs)

If you read #2, on this rod bolt spec page, it says the "rod numbers" SHOULD BE on the side with the bearing tabs(tangs) , IF that is correct, then the tangs/tabs/numbers should be on the oil cooler side.


The old 3406 engine "rule of thumb" was rod bearing tangs OPPOSITE the camshaft.
(oil cooler is opposite the cam, too)=== ( bearing tangs on oil cooler side)

Thank goodness, for "Copy and Paste", otherwise I could see myself getting burned out, sometimes.

Gotta remember, I glean info from this board too.  John Deere stuff, planter stuff, crop stuff, precision stuff(just trying to learn more about precision ag)