Why does a flywheel crack?
A flywheel can crack on the friction surface from heat caused by a slipping clutch. The ring gear on a flex plate and a flywheel can fail. They can wear from normal wear and tear, but usually fail because the teeth on the gear are ground away or even break off from a bad or week starter motor.
When do I need to change the flywheel?
You will rarely need to replace the flywheel, but the flywheel should be resurfaced whenever the clutch disc is replaced in a high-mileage car, and that can be easily done when the clutch assembly has been removed.
What’s the best way to replace a dual mass flywheel?
A more affordable alternative is to replace the OEM dual-mass flywheel with an aftermarket one-piece solid flywheel (which also requires a different clutch and clutch disk). In most cases, you can get a new flywheel and clutch for hundreds less than what it would cost to replace a dual-mass flywheel itself.
How big of a Jack do I need to replace the flywheel on my car?
The transaxle-to-engine brace bolts should be tightened to 32 foot-pounds. Park the vehicle on a level floor. Jack up the front, then the back, of the car to place one jack stand under four supporting frame points to carry the vehicle at least 24 inches off the ground to replace the flywheel on an automatic transmission.
What happens if the clutch and flywheel fail?
On a manual transmission vehicle, the clutch and flywheel are the two main components responsible for transmitting power from the engine to the transmission. If either one fails, the car will not be driveable.
You will rarely need to replace the flywheel, but the flywheel should be resurfaced whenever the clutch disc is replaced in a high-mileage car, and that can be easily done when the clutch assembly has been removed.
When did GM change the flywheel on the small block engine?
GM engineers redesigned the crankshafts used in production small-block V8 and V6/90-degree engines in 1986 to use a leak-resistant one-piece rear seal. This change from a two-piece to a one-piece seal required a change in the bolt pattern on the crankshaft flywheel flange.
How big is the bolt circle on a Chevy flywheel?
This change from a two-piece to a one-piece seal required a change in the bolt pattern on the crankshaft flywheel flange. The bolt circle on pre-1986 production crankshafts is 3.58″ in diameter. 1986 and later cranks have a 3.00″ bolt circle.
What makes a Chevy flywheel a challenge to install?
Different bolt hole and counterweight combos are what pose a challenge to the motor install process, and whether or not those patterns match make the difference between being able to match your torque converter and not being able to match your engine and transmission correctly.