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 TM 55-1905-223-24-3
(1)
Place the bearing support in the bore of the gear cover. Do not install the packing (17) on the
support at this time.
(2)
Push the support against the camshaft so the camshaft gear rests against the camshaft thrust
washer.
(3)
Hold the support against the camshaft, and use a feeler gauge to measure the space between the
gear cover flange and the support bearing (Figure 3-42).
FIGURE 3-42. Support Bearing Clearance.
(4)
The clearance between the bearing support and the camshaft gear must be 0.008 to 0.013 inch
(0.20 mm to 0.33 mm). After measuring the space between the bearing support and the gear cover
flange, add an additional 0.008 to 0.013 inch (0.20 mm to 0.33 mm) to that number to determine
the thickness of the shims required. Example: Space of 0.060 inch (11.52 mm), measured with a
feeler gauge, plus 0.010 inch (0.25 mm) for clearance would require 0.070 inch (1.77 mm) shims.
(5)
Use a micrometer to measure the shims removed from the support at the time of disassembly.
Add or remove shims as required to obtain the correct clearance between the bearing support and
the camshaft gear. Shims are available in the following thickness:
3-81
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