Quick Answer

Your Question What torque should flywheel bolts be?

What is the torque spec for flywheel bolts?

Fastener Type Torque Spec
Harmonic Damper Bolt 60 ft.-lbs.
Flywheel/Flexplate Bolts 65 ft.-lbs.
Pressure Plate Bolts 35 ft.-lbs.
Bellhousing Bolts 25 ft.-lbs.

What are the torque specs for a 5.9 Cummins?

Cylinder Head Torque Settings

For the Cummins 5.9-liter engines made between 1983 and 1989, the bolts in the cylinder head must be tightened to 89 foot-pounds plus an extra 1/4 turn. For engines made between 1998 and 2003, the figure is 77 foot-pounds plus the extra 1/4 turn.

How much does a Cummins flywheel weight?


Part # Description Weight
3922645 8.3L C Series Flat 138 tooth (Ref.# 3922644) This flywheel has very thick ring gear, that is it’s characteristic.
3946387 5.9L B Series Dodge w/ 12.25″ or 13″ clutch (*3922644) 60
398060 Tooth 152 64

Are flywheel bolts torque to yield?

All of the documentation that I found indicated the flywheel bolts are torque to yield, and not reusable.

How do you calculate flywheel torque?

Tfw = m*r^2/2/a

  1. Where Tfw is the Flywheel Torque (N-m)
  2. m is the flywheel mass (kg)
  3. r is the radius (m)
  4. a is the angular acceleration (rad/s^2)

How do you torque clutch bolts?

A small amount of threadlocking compound is recommended on all clutch fasteners. DO NOT use a washer with this pressure plate bolt. Tighten all bolts evenly, ¼ turn at a time in a crisscross pattern until pressure plate is completely drawn-up to the flywheel. Final torque to: 25 – 28 ft/lbs.

What does a 12 valve Cummins weigh?

9 12 Valve Cummins Engine Weigh?

Engine: Cummins 6BT (commonly referred to as the “12 valve Cummins”)
Horsepower: 160 – 215 HP @ 2,500 RPM
Torque: 400 – 440 lb-ft @ 1,600 RPM
Governed Speed: ~ 2,700 RPM
Engine Weight: ~ 1,100 lbs, dry & dressed (~ 890 lbs dry, engine assembly only)

How much horsepower does a 2006 5.9 Cummins have?

Engine: 5.9-liter Cummins turbodiesel in-line 6 with 325 horsepower at 2,900 revolutions per minute and 610 foot-pounds of torque at 1,600 rpm.

Is the 5.9 Cummins a 24 valve?

The new 5.9L Cummins engine had 24 valves, or 4 valves per cylinder. The mechanical “P-Pump formally known as the Bosch P7100 fuel injection pump was replaced with a rotary electric VP44 injection pump.

How much does a dd15 flywheel weight?

HDFW-42 New Flywheel for an Automatic Transmission – Detroit Diesel DD15 motor 15-1/2 in. Flat

Part #: HDFW-42
Brand: IATCO
Weight: 76
Handling Time: 1-2 days

Can you reuse flywheel bolts?

The stock bolts stretch during installation so they’re not reusable – this set of bolts is not only reusable but actually costs about half as much as a new set of Toyota bolts.

Are Miata flywheel bolts torque to yield?

End of dialog window. Apparently some flywheel bolts on other cars are torque-to-yield units. Meaning you torque the bolts to the point that they begin to yeild, or stretch, making them a single use bolt. The Miata does NOT use this type of bolt, and unless otherwise damaged, can be reused a number of times.

Can you reuse Duramax flywheel bolts?

Dont reuse them if you can help it. They are too inexpensive to chance.

How do you measure flywheel size?


How do you calculate flywheel energy?

stored energy = sum of kinetic energy of individual mass elements that comprise the flywheel. Kinetic Energy = 1/2*I*w*w. I = moment of inertia –&gt
ability of an object to resist changes in its rotational velocity.

What is the angular acceleration α of the flywheel?

A flywheel has angular acceleration αz(t)=8.60rad/s2−(2.30rad/s3)t, where counterclockwise rotation is positive.

What’s the torque on a clutch?

The torque capacity of the clutch is the amount of torque that can be transmitted by the clutch when it’s slipping or when it’s fully closed. The torque capacity of a clutch depends on a series of factors: total area of the friction surface. friction coefficient.

How do you pressure plate torque?


What is a pressure plate?

Definition of pressure plate

: a plate in an automobile dry disk clutch that is pressed against the flywheel to transmit propulsion torque to the wheels.

How heavy is a NV4500?

Torque Ratings and Other Stats

Weight – The NV4500 is a back-breaking 195 lbs versus the TR-4050’s 164 lbs. This is due to the case material. While the NV4500 used cast iron, the TR-4050 makes use of a die-cast aluminum alloy to save weight while offering considerable rigidity.

How long is a 12v Cummins?

The venerable 6BT Cummins was introduced in 1984 for various agricultural equipment applications by Case.5.9L Cummins 12v (6BT) Engine Specs.

Engine: Cummins 6BT (commonly referred to as the “12 valve Cummins”)
Engine Dimensions: Length: 40.0″
Width: 24.9″
Height: 37.9″

What is a 12v Cummins?

The 12-valve Cummins, officially the Cummins 6BT, is the engine at the bottom of the family tree of diesel engines (at least in pickup trucks). Its simple, straightforward design is a symbol of reliability, solid engineering and tractor-style torque.

How much torque does a 12 valve Cummins have?

The Cummins 5.9-liter 6BT 12 valve has 230 HP, 440 lb-ft of torque, and a P7100 inline injection pump right out of the box. The 12-valve is also a popular engine swap choice, powering a slew of Jeep, rat rod, muscle car, and dragster projects.

How much HP can a stock 2006 5.9 Cummins handle?

The 5.9L inline-six mill’s factory rotating assembly from ’89 to ’02 is capable of handling 800 hp (1,400 to 1,600 lb-ft of torque) without breaking a sweat, and is often pushed into four-digit territory before aftermarket rods become a consideration.

How much HP does a stock 5.9 Cummins have?

The last generation 5.9l Cummins engines from 2003 to 2007 used HPCR pump and 24 valves. They have 305-325 HP and 600-650 lb-ft of torque. Cummins made a displacement change in 2007.5 to the 6.7l Cummins diesel.

Is 24v better than 12v Cummins?

In summary, those looking to keep things stock or modest the 24v is the better street engine. If you’re looking for extreme power and performance the older 12v Cummins engine is likely the better choice.

Is a 12 valve Cummins better than a 24 valve?

The 12 Valve engine is hands down more reliable than the 24 Valve. Even guys who have spent the money to get an aftermarket lift pump (a must with a 24 Valve, along with a fuel pressure gauge) have gone through multiple pumps.

How much power can a 12v Cummins make?

Though it’s quite restrictive, the factory cast-iron 12-valve cylinder head will allow you to reach 500 hp, but that aged head gasket might not live at 35-45 psi of boost.