2. If you are going to buy a remanufactured engine, all external parts should be removed first (see illustrations), that will be installed on the new engine; they are removed in the same way as in the case of an independent overhaul. These external details include:
- Generator and brackets
- Details of the emission control system
- Ignition coil, spark plug wires and spark plugs
- Thermostat and housing cover
- coolant pump
- EFI system details
- intake/exhaust manifolds
- Oil filter
- engine mounts
- Flywheel
Note. When removing external parts from the engine, pay special attention to those points that may be useful or important during installation. Note installation positions for gaskets, seals, spacers, studs, brackets, washers, bolts, and other small parts.
7.3a. 3.1 L engine - view from the side of the drive belt | 
7.3b. Engine 3.1 l - view from the side of the radiator |
7.3v. Engine 3.1 l - view from the side of the heat-insulating wall
4. If you are purchasing "short block", which includes the cylinder block with the crankshaft, pistons and connecting rods, the cylinder heads, oil pan and oil pump must also be removed. For more information related to the various repair options, see "Engine overhaul options".
5. If you plan to carry out a complete overhaul, the engine must be disassembled, and the following general sequence for removing internal parts must be observed (see illustration).
7.5. Details of the V6 engine with a displacement of 3.8 liters: 1 - cylinder block; 2A - front sealing gasket for fastening the intake manifold to the cylinder block; 2B - bolt for fastening the balance shaft gear to the balance shaft; 3 - balance shaft gear; 4 - balancing shaft; 5 - balance shaft gear pin; 6 - balancing shaft bearing; 7 - balance shaft bearing hole cover; 8 - rack of valve rockers; 9 - cylinder head; 10 - pusher rod; 11 - pusher; 12 - cylinder head gasket; 13 - flywheel; 14 - piston with connecting rod; 15 - liners of the lower head of the connecting rod; 16 - connecting rod bearing cap; 17 - connecting rod bolt; 18 - crankshaft; 19 - rear oil seal; 20 - main bearing shell; 21 - main bearing cap; 22 - main bearing cap bolt; 23 - oil intake; 24 - oil sump with gasket; 25 - sump tensioner spring; 26 - oil pump; 27 - front cover; 28 - front cover seal; 29 - antivibrator; 30 - timing chain drive; 31 - oil filter flange; 32 - camshaft sprocket; 33 - timing chain tensioner; 34 - camshaft; 35 - camshaft bearings; 36 - not used; 37 - crankshaft sprocket; 38 - cotter pin; 39 - thrust main bearing
- valve covers
- intake and exhaust manifolds
- Rocker arms and valve lifters
- Valve lifters
- cylinder heads
- Timing chain cover and oil pump
- Timing chain and sprocket
- Camshaft
- balance shaft (only for 3.8L engine)
- oil sump
- Pistons with connecting rods
- Crankshaft with main bearings
6. Before beginning any disassembly and overhaul, make sure you have the tools and materials listed below. Also study the list of tools and materials required for assembly, which is given in the section "Engine Overhaul - Assembly Sequence".
- Ordinary hand tools
- Small cardboard boxes or plastic bags for storing parts
- Scraper for removing gaskets
- Shoulder Removal Tool
- Antivibrator puller
- Micrometers
- Set of micrometers with indicator head
- Valve spring compressor
- Hone for surface treatment of cylinders
- Piston ring groove cleaner
- Electric drill
- Set of taps and dies
- Wire brushes
- Brushes for cleaning oil lines
- cleaning solvent