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

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6-84 Marine/Industrial 4.3L Engine 4. Install the crankshaft bearings into the crankshaft bearing caps. 334342 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. 334329 500656 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
Engine Marine/Industrial 4.3L 6-85 • If the crankshaft bearing clearance is within specifications, the crankshaft bearing is satisfactory. If the clearance is not within specifications, replace the crankshaft bearing. Always replace both the upper and lower crankshaft bearings as a unit. • A standard or undersize crankshaft bearing combination may result in the proper clearance. If the proper crankshaft bearing clearance cannot be achieved using the standard or the undersize crankshaft bearings, it may be necessary to repair or replace the crankshaft. Notice: Do not shim, scrape or file bearing inserts. Do not touch the bearing surface of the insert with bare fingers. Skin oil and acids will etch the bearing surface. 10. Remove the flattened gauging plastic. 11. Measure the remaining crankshaft bearing journals. Connecting Rod Side Clearance Measuring Procedure 1. Insert a feeler gauge between the connecting rod caps and measure the connecting rod side clearance. Refer to Engine Mechanical Specifications. 2. Connecting rod side clearances may also be measured with a dial indicator set. 5163 2000 Marine/Industrial
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Service Engine Engine Model: Genera
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Table of Contents Caution Introduct
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Table of Contents, continued Valve
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Introduction This service manual pr
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Cautions and Notices Definition of
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Engine Marine/Industrial 4.3L 6-1 E
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Engine Marine/Industrial 4.3L 6-3 F
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Engine Marine/Industrial 4.3L 6-5 E
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Engine Marine/Industrial 4.3L 6-7 G
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Engine Marine/Industrial 4.3L 6-11
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Notes
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Service Manual, General Motors 4.3L Engine (TP ... - Kohler Power

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