5-101.bk Page 19 Friday, March 17, 2006 11:05 AM
200 ENGINE ASSEMBLY [212 HP] CRANKSHAFT Installation 1. Clean the crankshaft and crankcase area. 2. Thoroughly clean each main bearing bore and the back of each bearing insert before installation. The inserts must be installed dry.
3. Place the upper half of the bearing insert in the block bore, making sure that the locating tab fits into the notch provided. 4. Repeat above step to install the remaining upper inserts. Refer to Figure 6-20 for the part number and location of each bearing insert.
A bearing insert installed at the wrong location can cause engine failure. The hole in the insert should line up with the drilled hole in the block or the bearing will fail due to lack of lubrication. The upper bearing insert is stamped on the back with the word UPPER.
5. Apply a light coat of clean engine oil on the insert surfaces and on the crankshaft main bearing journals.
Figure 6-20 — Main Bearing Insert Part Numbers and Locations 1. Upper insert — 646B348; Lower insert — 646B343 2. Upper insert — 646B345; Lower insert — 646B343 3. Upper insert — 646B345; Lower insert — 646B343 4. Upper insert — 646B349; Lower insert — 646B344
5. Upper insert — 646B345; Lower insert — 646B343 6. Upper insert — 646B345; Lower insert — 646B343 7. Upper insert — 646B350; Lower insert — 646B344
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