M/T - Hard Shift to 2ND Gear After Cold Start

Bulletin No. 004/92
Issued 7/7/92
Revised

Category
J

Applicable Model/s
MX-5 Miata
RX-7 Non-Turbo

Subject
HARD SHIFT TO 2ND GEAR AFTER COLD START





DESCRIPTION

Hard shifting into second gear before the vehicle has had sufficient time to warm up may be caused by insufficient clearance between 2nd gear synchronizer ring and the 1-2 clutch hub. Design changes have been made to the 2nd gear synchronizer ring and clutch hub sleeve to correct this problem since April 1, 1991.

If you experience hard shifting into 2nd gear after a cold start with an RX-7 (non-turbo) or Miata produced prior to April 1, 1991, replace the 2nd gear synchronizer ring and 1-2 clutch sleeve (or 1-2 clutch hub set) with redesigned ones. Refer to Section J of the workshop manual for installation procedures.

VIN OF PRODUCTION-CHANGE

MX-5 Miata JM1NA351*M*232720 April 1, 1991
RX-7 (Non-Turbo) JM1FC3***M0906971 April 1, 1991





PARTS INFORMATION

WARRANTY INFORMATION

(Applies to vehicles covered under warranty.)

Warranty Type Code:
A

Customer Comment Code:
99

Damage Code:
99

Part No. of Main Cause:
M502 17 265C (Qty. 1)

Related Parts:
M503 17 262A (Qty. 1)
M505 17 260B (Qty. 1)

Miata RX-7
Operation No: J0315XRX J0315ARX
Labor Hour: 5.2 Hrs. 5.1 Hrs.