Valve body repair FW6AEL FW6AXEL GW6AEL GW6AXEL (using valves in standard + size)

FW6A-EL (GW6A-EL) - is a modern 6-speed automatic transmission developed by Aisin Warner specifically for Mazda, mainly found on the Mazda CX3, CX5, CX7, 3, 6.

Upon reaching a run of 100-150 thousand km. there are problems with the valve body , because of the hot oil containing abrasive impurities, which destroys the anodized coating of the plungers .

In the FW6A-EL valve body there are 2 highly loaded valves (Accumulator Piston) that are the first to fail and lead to the following symptoms:
 

• Torque converter quick lock up
• Slippage when switching from 2 to 3 and from 4 to 5 gears

Maktrans engineers have developed a repair technology that consists in replacing damaged plungers with new ones made in the size of +0.015 mm from the standard.

Main advantages of using standard + valves:
 

• Speed ​​and ease of repair - no need to bore the channel in the hydraulic plate, just polish the hole with an inexpensive  tool .
• Reliability - the coating of our plungers is more resistant to mechanical damage compared to the factory ones, since cold hard anodizing is used.
  
  
  Repair beginning. Vacuum testing shows extremely low rates and such valves definitely need to be replaced.
   

Worn out plungers removing.

Maktrans production plunger on the left, plunger with critical wear  on the right

New plungers installing

Repeated vacuum testing, the tightness of the channel + plunger pair is restored.

Then, on a special stand, the solenoids are checked, if necessary, washed or replaced with new ones.

Valve body repair is a more profitable and reliable option for automatic transmission repair than buying a used valve body from disassembly, which is likely to also be malfunctioning. At the same time, Maktrans gives a 1 year warranty on repaired components and assemblies without mileage limitation. Also a common problem of the FW6AEL is the destruction of the housing bearing and the appearance of a workout in the housing itself, we solve this problem,
Tools and consumables that were used for this repair: here you can read about housing repair

Tools and consumables that were used for this repair:

• Accumulator Piston Valve (size +0.015 mm) FW6AEL FW6AXEL GW6AEL GW6AXEL
• Valvebody channel burnishing tool
• Valve body plate tightness vacuum tester

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