Formula # 1 - Adjusting Pulley Alignment

(The tool being used is P/N 499575600 and is shown in the 1989 Justy Service Manual, section 1-6, page 10.)

This formula pertains to the thickness of the selected shim only. Therefore, X will represent the calculated thickness of the shim.

Formula: X = A - (B + Lp - Ls) + 0.054 mm - 24.45 mm
t = Shim thickness (This is the actual shim you will use. The table
on the right column of p. 73 of section 3-2 of the 1989 Justy
Service Manual shows the shims by part number in the center, the
actual thickness on the right of the chart and the result of the

formula on the left of the chart.)

A = Indicated primary pulley dimension (This will only be marked on
new replacement pulleys, not on the ones found in the

transmission.)

B = Indicated secondary pulley dimension (This will only be marked on
new replacement pulleys, not on the ones found in the

transmission.

Lp = Depth between side case mating surface and primary pulley
bearing seat (Average of 4 measurements.)

Ls = Depth between side case mating surface and secondary pulley
bearing seat (average of four measurements.)

24.45 mm: A constant

0.054 mm: Another constant

NOTE: (0.054)(-24.45) may be combined to form (-24.396 mm ) and remain a constant.

* Perform the measurements; refer to the chart in the Service Manual for the correct selection.


Lp Ls
Pg. 39 TRB Pg. 40 TRB
89 MY Update 89 MY Update