REPAIR INSTRUCTIONS 10. On the shift piston, install a new O-ring into the lower (wide) piston groove. 450
Using a piece of crocus cloth to polish and remove any sharp edges from the installer/sizer tool will ensure that the seal will not be damaged as it is being installed. 8. Continue gently pushing the tool into the bore until the flat end of the tool is flush with the inside bottom of the cylinder.
Examine the seal as the tool is being pushed into place. If the seal moves out of position on the O-ring, or if the fold or a portion of the fold becomes kinked, immediately remove the tool and reseat the seal against the O-ring before reattempting to use the tool to seat the seal. 449
Figure 450 — Installing O-Ring in Second/Lower Groove on Piston
11. Carefully install the Teflon® seal over the O-ring. Work the seal over the O-ring by hand as much as possible. Once the seal is in position, slide a small screwdriver under the section of the seal that is not in position, and pry the seal into position.
Be sure the screwdriver does not have any sharp edges on the blade or nicks on the shank. DO NOT over-stretch the Teflon® seal, and make sure that the seal lips seat over each side of the O-ring. 451
Figure 449 — Installer/Sizer Tool Fully Inserted and End Flush with Bottom of Cylinder
9. After the tool has been fully inserted, leave the tool in place while the remaining cylinder rebuild procedures are performed. This allows the Teflon® seal to form to the circumference of the shift rail bore.
Figure 451 — Installing Teflon® Seal
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