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| All flywheels for A-series engines interchange -- for rear-wheel drive vehicles. The A12 flywheel weighs a bit less is the main difference. | All flywheels for A-series engines interchange -- for rear-wheel drive vehicles. The A12 flywheel weighs a bit less is the main difference. | ||
| + | * A12: 9.7 kg (PN 12310-H1000) | ||
| + | * A12: 6.4 kg (Race Option flywheel PN 12310-H2310] | ||
| In 1974 flywheel bolts changed from British Threads to Metric threads. So the bolts are not interchangeable from early to late. | In 1974 flywheel bolts changed from British Threads to Metric threads. So the bolts are not interchangeable from early to late. | ||
| + | |||
| + | = Lightening = | ||
| + | For race cars, a light flywheel allows the engine to rev faster according to this principle: | ||
| + | The more weight, the more time it takes to accelerate | ||
| + | |||
| + | |||
| + | Now a street car wants a heavier flywheel, so that it will: | ||
| + | * smooth out the combustion pulses | ||
| + | * smooth out the drivetrain | ||
| + | |||
| + | |||
| + | These are the factory specs for flywheel weight reduction: | ||
| + | |||
| + | [http://datsun1200.com/modules/myalbum/photo.php?lid=3913 http://ddgonzal.members.winisp.net/getThumb.aspx?width=220&uri=http://datsun1200.com/modules/myalbum/photos/3913.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=1014 http://ddgonzal.members.winisp.net/getThumb.aspx?width=220&uri=http://datsun1200.com/modules/myalbum/photos/1014.jpg] | ||
| + | |||
| + | |||
| + | Finished wheight is about 6.5 kgs --a total of 2 kgs removal | ||
| + | |||
| + | |||
| + | Reference: ''[[Competition Tune-Up Manual|Datsun B110 Competition Tune-Up Manual]]'', Nissan Motor Co. Ltd., Tokyo Japan 1974 | ||
| [[Category:Clutch]] [[Category:Engine Mechanical]] | [[Category:Clutch]] [[Category:Engine Mechanical]] | ||
Revision as of 01:58, 12 January 2008
Datsun 1200 uses a traditional type of flywheel at the back of the engine. The face matches the Clutch while a ring gear is attached to the perimeter for the Starting Motor to turn the engine.
All flywheels for A-series engines interchange -- for rear-wheel drive vehicles. The A12 flywheel weighs a bit less is the main difference.
- A12: 9.7 kg (PN 12310-H1000)
- A12: 6.4 kg (Race Option flywheel PN 12310-H2310]
In 1974 flywheel bolts changed from British Threads to Metric threads. So the bolts are not interchangeable from early to late.
Lightening
For race cars, a light flywheel allows the engine to rev faster according to this principle:
The more weight, the more time it takes to accelerate
Now a street car wants a heavier flywheel, so that it will:
- smooth out the combustion pulses
- smooth out the drivetrain
These are the factory specs for flywheel weight reduction:
Finished wheight is about 6.5 kgs --a total of 2 kgs removal
Reference: Datsun B110 Competition Tune-Up Manual, Nissan Motor Co. Ltd., Tokyo Japan 1974