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6A3-16
1977 PONTIAC SERVICE MANUAL
TO THESE
Y
TWO AREAS
4820
Fig. 6A3-3 1 Sealer Applied to Split Line
2. Insert packing tool (J 2 1526-2) against one end of the
seal in the cylinder block. Drive the old seal gently into the
groove until it is packed tight. This varies from 1/4"to 3/
4"depending on the amount of pack required. See Fig. 6A3-
32.
3. Repeat Step 2 on the other end of the seal in the
y linder block.
4. Measure the amount the seal was driven
UD
on one
side and add 1/ 16", using a single edge razor blade' cut that
length from the old seal removed from the rear main bearing
cap. Repeat the procedure for the other side. Use the rear
main bearing cap as a holding fixture when cutting the seal.
5. Install Guide Tool (J 21526-1) onto cylinder block.
See Fig. 6A3-33.
Fig. 6A3-33 Guide Tool Installed
Fig. 6A3-34 Packing Short Pieces of Rope Seal Into
Guide Tool and Cylinder Block
6. Using packing tool, work the short pieces cut in Step
4 into the guide tool and then pack into cylinder block. The
guide tool and packing tool have been machined to provide
a built-in stop. Use this procedure for both sides. See Figs
6A3-33 and 6A3-34.
It may help to use oil on the short pieces of the rope seal
when packing into the cylinder block.
7. Remove the guide tool.
8. Install a new fabric seal in the rear main bearing cap.
Install cap and torque to specifications.
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