Century V6-204 3.3L VIN N FI (1990)
Note:
The piston return springs are easy to overlook but can definitely be a cause of repeat failure of the 2nd clutch.
1984-1986 - driven sprocket support cast iron seals worn or broken. Check for grooves being cut into the inside diameter of the 2nd clutch drum.
If so, replace the second clutch drum and install a driven sprocket support with the later style support using Vespel ring seals.
1987-1990 - driven sprocket support Vespel ring seals cracked or broken. Check for damaged or mispositioned four lobe support seals under the
Vespel rings.
6.
Check the 2nd clutch apply passage which between the driven sprocket support and bushing. Look for the bushing being out of position or worn. If
either condition is found, the driven sprocket support should be replaced. Blow air through the passage to check for restrictions or foreign
material. If full apply pressure cannot get through to the clutch, it will slip and wear.
7.
Check for a leak at the sealing surface where the driven sprocket support contacts the channel plate.
