FLYWHEEL OEM 12A, —NLA— 81-82

Related Products:

• 

  CLUTCH KIT, 79-82

  

  Clutch Kit, 79-82
  Stock/Original Equipment

  OEM Street Clutch Kit
  Includes Disc, Pressure Plate, T/O Bearing, Pilot Bearing and seal, and Alignment Tool

  We open every Exedy Kit to make sure that the correct Pilot Bearing and seal are included, due to Exedy rarely includes the pilot seal and sometimes has the incorrect bearing.

  SKU:	07020
  Manufacturer SKU:	07020

  $159.05
  Add to cart
• 

  FLYWHEEL STEEL, 74-82 WITHOUT COUNTERWEIGHT

  Flywheel Steel, 74-82 Without Counterweight

  Does NOT include Counterweight!!

  Applications
  Designed to retain enough mass for comfortable standing starts this flywheel is ideal for street use, yet it is sufficiently lighter to afford a noticeable improvement in low speed acceleration and to make shifting much smoother. For street use our lightweight steel flywheel not only allows the engine to accelerate more rapidly, but it also eliminates much of the rubbery feel that occurs at clutch engagement while shifting.  

  Precision Machining
  Precision CNC-machined from high strength steel, our flywheel assembly is mated to the Mazda OEM ring gear, then surfaced hardened using a ferritic carburizing heat-treating process, creating an extremely durable disc wear surface. The ring gear is thermally-mated to the flywheel and bolted in place for added security to prevent slippage during engagement of the starter motor.

  Weight Comparison
  The weight of the stock flywheel is 23 lbs., compared to 13 lbs for this Flywheel. The actual reduction in inertia from stock is much greater than the weights suggest, since the stock flywheel is 1 to 2 inches thick at its outside edge.

  Retaining Critical Engine Balance
  The installation of an aftermarket flywheel requires the use of a Mazda rear counterweight unit to ensure critical balance of the internal rotating assembly (engine rotors). As produced by Mazda, the original stock rotary flywheel features a pronounced balancing mass included in the flywheel casting. This balancing mass, combined with the stock front counterweight unit, provides the correct balance required for the optimal rotational operation of the engine rotors.

  To allow an aftermarket flywheel to be used on several different rotary engine applications, this balancing mass is eliminated from the design of the rotary flywheel. However, this critical balancing mass must be replaced with an alternative balance weight or risk severe engine damage due to an “unbalanced” engine. A convenient alternative is to install an appropriate rear counterweight from an automatic transmission-equipped RX-7. We offers this counterweight separately if needed.

  Rear Counterweight (Required)
  All aftermarket flywheels require the use of an automatic transmission rear counterweight for correct operation.

  Installation Hardware

  Our Flywheel kits include the flywheel unit and the appropriate mounting hardware, which includes the appropriate tensile-strength hardware to attach the pressure plate to the flywheel.  DO NOT use other aftermarket flywheel mounting kits with the our flywheels. 

  We strongly recommend replacing the throwout bearing during any clutch work to ensure trouble free performance. Also, we recommend replacing the transmission front and rear seal kit when re-installing the transmission to reduce the possibility of leakage.

  Safety Warning
  None of the flywheel or clutch components shown in this site should ever be allowed to exceed 10,500 RPM under any condition. This same RPM limit applies to stock components. You must use an engine RPM-limiter to prevent excessive RPM. If your engine is capable of exceeding 8,500 RPM you must install a transmission scatter shield, or ballistic blanket. Failure to implement the above may result in serious injury or even death.

  SKU:

  11436

  $450.00
  Add to cart
• 

  FLYWHEEL SOCKET TOOL, 54MM IMPACT SOCKET

  Flywheel Impact Socket Tool, 54mm, 3/4″ drive

  SKU:	49-22009HD

  $50.38
  Add to cart
• 

  FLYWHEEL STOPPER TOOL, ALL Non-Turbo diameter flywheels

  Flywheel Stopper Tool, All Non-Turbo diameter flywheels (Except RX-8’s)

  Flywheel stopper makes getting the flywheel / counterweight nut off a LOT easier.
  For flywheels 11 3/4″ diameter.

  SKU:	49-220NT
  Manufacturer SKU:	49-220NT

  $23.86
  Add to cart
• 

  REAR COUNTERWEIGHT, 12A 79-82

  

  Rear Counterweight, 12A 79-82

  SKU:	11-751A-1883
  Manufacturer SKU:	1883-11-751A

  $267.46
  Add to cart
• 

  FLYWHEEL KEY, REAR KEY WAY

  

  Rear Flywheel Key Way

  SKU:	11-7050-0820
  Manufacturer SKU:	0820-11-705

  $5.69
  Add to cart