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M/T - Roller Bearing & Main Shaft Modified

Category Applicable Model/s Subject Bulletin No. 010/85
7 1985 RX-7 & ROLLER BEARING & MAIN SHAFT Issued 5/13/85
1984 B2000/B2200 Revised

ROLLER BEARING & MAIN SHAFT:




DESCRIPTION

To further improve the reliability of the transmission, the following modifications have been made.

1. The roller bearing has been enlarged and the recess in the main drive gear has been enlarged to accept the new roller bearing.

Main Shaft/Retaining Rings:




2. The method of retaining the bearing on the main shaft has been changed from clips to thrust washers with retaining rings.

VIN OF PRODUCTION CHANGE

RX-7 12A: JM1FB331 F0876904 December, 1984
13B: JM1FB332 F0876904 December, 1984
B2000 Short Bed: JM2UC121 E0919987 December, 1984
Long Bed: JM2UC221 E0844354 December, 1984
B2200 Short Bed: JM2UD121 E0801687 December, 1984
Long Bed: JM2UD221 E0803537 December, 1984


PARTS INFORMATION

RX-7

PART NUMBER APPLIED
DESCRIPTION MODEL/ INTERCHANGEABILITY
NEW OLD DESCRIPTION

M506 17 201A M506 17 201 Main Drive Gear (12A) NO

M502 17 221A M502 17 221 Main Shaft (12A) NO

M506 17 201A M506 17 201 Main Drive Gear (13B) NO

M505 17 221A M505 17 221 Main Shaft (13B) NO

M501 17 210 0249 17 210B Roller Bearing - NO

0839 17 305B - Retaining Ring - -

0884 17 632B 0884 17 632A Thrust Washer (T = 6.2) NO

0884 17 633B 0884 17 633A Thrust Washer (T = 6.4) NO

0884 17 634B 0884 17 634A Thrust Washer (T = 6.5) NO

0884 17 635B 0884 17 635A Thrust Washer (T = 6.6) NO

M501 17 651 0862 17 641A Thrust Washer (T = 3.0) NO

M501 17 653 0862 17 642A Thrust Washer (T = 3.1) NO

M501 17 654 0862 17 643A Thrust Washer (T = 3.2) NO

M501 17 655 0862 17 644A Thrust Washer (T = 2.9) NO

M501 17 652 - Ring - -

9995 52 640 - Adjust Washer - -

B2000/B2200

PART NUMBER APPLIED
DESCRIPTION MODEL/ INTERCHANGEABILITY
NEW OLD DESCRIPTION

4114 17 201A 4114 17 201 Main Drive Gear B2000 NO

M502 17 221A M502 17 221 Main Shaft B2000 NO

M502 17 201A M502 17 201 Main Drive Gear B2200 NO

M502 17 221A M502 17 221 Main Shaft B2200 NO

M501 17 210 0249 17 210B Roller Bearing - NO

0839 17 305B - Retaining Ring - -

0884 17 632B 0884 17 632A Thrust Washer (T = 6.2) NO

0884 17 633B 0884 17 633A Thrust Washer (T = 6.4) NO

0884 17 634B 0884 17 634A Thrust Washer (T = 6.5) NO

0884 17 635B 0884 17 635A Thrust Washer (T = 6.6) NO

M501 17 651 0862 17 641A Thrust Washer (T = 3.0) NO

M501 17 653 0862 17 642A Thrust Washer (T = 3.1) NO

M501 17 655 0862 17 644A Thrust Washer (T = 2.9) NO

M501 17 652 - Ring - -

9995 52 640 - Adjust Washer - -
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