Loadelectro665

1. 5.9 Cummins Flywheel Housing
2. Cummins Flywheel Specs
3. Cummins Flywheel Housing

The only difference in 3921263 & 3906807 is the position of the ring gear on the flywheel.4933458, 3908575, 3908574, 3907564, 3903308, 3921264, 3974913. 60: 206 / 305: 3903309.540 THICK: 8 Bolt Holes: 3922645: 8.3L C Series Flat 138 tooth (Ref.# 3922644) This flywheel. P C Industries supplies both Genuine and OEM Replacement parts for Cummins engines. We utilize the same numbering system as Cummins. OEM is the abbreviation for Original Equipment Manufacturer. Along with Cummins Flywheel Housings, we offer an unmatched inventory of Flywheel Housings for Diesel applications. Our strength is the ability to service “truck down” and rush shipments. We fill those requests for the every-day parts or hard-to-find parts. Cummins Flywheel Housing Choosing Genuine Cummins parts means you get precision design, state-of-the-art manufacturing and diligent testing that ensures our parts perform at Cummins factory-specified levels of efficiency, reliability and durability. Genuine Cummins. Application: Aftermarket Cummins Flywheels NT855 Small Cam Big Cam N14; Design: Flat with 8″ Opening Mounting: 6 Bolt Holes & 2 Threaded Holes Size: SAE #2 Clutch: 15″ Ring Gear: AK-4797 (AK-3065151) 17″ O.D. – 103 Teeth Cross Reference Numbers: AK-129594; Flywheel.

Cummins

PLEASE NOTE: The 5.9 & 8.3 have the same casting #’s. You MUST verify ring gear thickness, location & tooth count.

5.9 Cummins Flywheel Housing

Cummins N14 – Flywheel Housing – Installation

Install two 5/8-18 x 4-inch guide studs in the cylinder block to help support and align the housing during installation.

If a wet-type flywheel housing is being installed, do the following:
1. Install a new o-ring on the rear cover. Use vegetable oil to lubricate the o-ring.
2. Install 11 rectangular sealing rings in the capscrew dowel pin counterbores in the flywheel housing. Use gasket adhesive to fasten the sealing rings to the housing.

Install the flywheel housing over the guide studs.
Install the capscrews, and tighten in the sequence shown.
Torque Value: 203 N•m
[150 ft-lb]

Bore Alignment – Measurement
Use chalk to mark the housing at the 12:00 o’clock, 3:00 o’clock, 6:00 o’clock, and 9:00 o’clock positions.
Use dial gauge indicator (1), Part No. 3376050, and dial gauge attachment (2), Part No. ST-1325, to measure the bore alignment.

Attach a dial indicator to the crankshaft as shown.

NOTE: The indicator arm must be rigid for an accurate reading. It must not sag.
Put the indicator at the 12:00 o’clock position. Adjust the dial indicator until the needle points to ‘‘0.’’

Rotate the crankshaft one complete revolution in a clockwise direction (viewed from the front of the engine).
Record the indicator reading at three different positions: 3:00 o’clock, 6:00 o’clock, and 9:00 o’clock.

Continue rotating the crankshaft until the dial indicator is at the 12:00 o’clock position.
Check the dial indicator to make sure the needle still points to ‘‘0.’’

Determine the total indicator runout (T.I.R.) as follows:

The maximum allowable total indicator runout (T.I.R.)depends on the diameter of the housing bore. See the following chart:

If the bore alignment does not meet the specifications, loosen the housing capscrews. Tighten the capscrews again, and measure the bore alignment again.

Cummins Flywheel Specs

If the alignment is not within specifications and the bore is round, the housing can be shifted. Refer to Section 16.
If the alignment is not within specifications and the bore is not round, the housing must be replaced.

Face Alignment – Measurement
Install the dial indicator as shown.
Put the tip of the dial indicator gauge against the flywheel housing surface.

Rotate the crankshaft until the dial indicator is at the 12:00 o’clock position.
Push the crankshaft toward the front of the engine. Adjust the dial on the indicator until the needle points to ‘‘0.’’

NOTE: The crankshaft must be pushed toward the front of the engine to remove the crankshaft end clearance each time a point is measured.

Cummins Flywheel Housing

Rotate the crankshaft in a clockwise direction (viewed from the front of the engine).
Record the indicator reading at three different positions: 3:00 o’clock, 6:00 o’clock, and 9:00 o’clock.

Continue rotating the crankshaft until the dial indicator is at the 12:00 o’clock position.
Check the dial indicator to make sure the needle still points to ‘‘0.’’

Determine the total indicator runout (T.I.R.) as follows:

The maximum allowable total indicator runout (T.I.R.) depends on the diameter of the housing bore. See the following chart:

If the alignment is not within specifications, remove the housing. Check for nicks, burrs, or foreign material between the block and the housing.

Check the alignment again. If the alignment is not within specifications, the block or the housing is not machined correctly.

Related Posts

• Cummins N14 - Flywheel Housing - Removal

  Remove capscrews (1) and (2), and install two 5/8 - 18 X 4-inch guide studs.…

• Cummins N14 - Thermostat Housing - Removal

  Disconnect the air compressor coolant return line from the thermostat housing. Remove the four capscrews…

• Cummins N14 - Flywheel - Removal

  Install two 1/2 - 13 X 1 1/2 puller capscrews which have a minimum of…

• Cummins N14 - Rocker Housing Covers - Removal

  Remove the ten capscrews from each rocker lever cover. Remove the rocker lever covers. The…

• Cummins N14 - Dipstick Tube and Housing - Removal

  Remove the four capscrews and the housing.