Service Manual, General Motors 4.3L Engine (TP ... - Kohler Power

6-84 Marine/Industrial 4.3L Engine
4. Install the crankshaft bearings into the crankshaft bearing
caps.
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5. Install the crankshaft bearing caps in the original positions
and with the arrow on the crankshaft bearing caps in the
direction of the front of the engine block.
Notice: Refer to Fastener Notice in Cautions and Notices.
6. Install the crankshaft bearing cap bolts.
Tighten
6.1. Tighten the crankshaft bearing cap bolts on the first
pass to 20 N•m (15 lb ft).
6.2. Tighten the crankshaft bearing cap bolts on the final
pass an additional 73 degrees using the J 36660.
7. Remove the crankshaft bearing cap bolts.
8. Remove the crankshaft bearing caps. The gauging plastic
may adhere to either the crankshaft bearing journal or the
crankshaft bearing surface.
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9. Without removing the gauging plastic, measure the
compressed width at the widest point using the graduated
scale on the edge of the gauging plastic envelope.
If the flattened gauging plastic tapers toward the middle or
the ends, there may be a difference in clearance indicating
taper, low spot or other irregularity of the crankshaft bearing
or the crankshaft bearing journal.
• Normally the crankshaft bearing journals wear evenly and
are not ou-of-round. However, if a crankshaft bearing is
being fitted to an out-of-round 0.0254 mm (0.0010 in)
(maximum) crankshaft bearing journal, be sure to fit to the
maximum diameter of the crankshaft bearing journal. If
the crankshaft bearing is fitted to the minimum diameter
and the crankshaft bearing journal is excessively out-ofround,
the interference between the crankshaft bearing
and the crankshaft bearing journal will result in rapid
crankshaft bearing failure.
2000 Marine/Industrial