D349 INDUSTRIAL & MARINE ENGINES Caterpillar

preparatory steps:

a) remove oil pump

b) remove pistons

c) remove flywheel housing

d) remove front timing gear cover

1. Install a 1/2"-13NC forged eyebolt in front of crankshaft. Install one of the flywheel retaining bolts in rear of crankshaft. Attach a hoist to the crankshaft.

2. Remove the crankshaft main bearing caps, retaining nuts and washers. Install rubber hoses over four inside studs to protect crankshaft during removal and installation.

3. Remove the crankshaft-weight 600 lbs. (272 kg).

4. Remove the crankshaft main bearings from the cylinder block and main bearing caps.