3800 Engine build
GM's 3800 engine is a 3.8 liter V-6 used in many models, like the
Bonneville, LeSabre, and Grand Prix.
This example is from 1988.
Notes:
- The photos are generally, but not necessarily, in order of assembly.
- Click any image for a larger version.
- See
also GM's
3800 site.
The naked engine block, shown here upside-down.
|
Crankshaft in place.
|
Crankshaft in the block.
|
Still another shot of the crankshaft.
|
The six pistons. The second one from the left is missing its rings!
|
The first piston in place. The block is right-side-up now.
|
Two pisons in.
|
A ring compressor keeps the piston rings in place during insertion.
|
A piston attached to its rod and its end cap.
|
All the pistons in place. Cylinders #1, #3, #5 are on the near side (right to left). #2, #4, #6 (right to left) are on the far side.
|
All the pistons are in place, as seen from the front of the block.
|
From the back of the engine. One of the heads is on. Springs are visible, but rockers aren't in place yet.
|
It's not visible in the picture, but the cam shaft has been inserted. The cam followers are in place.
|
Now with rocker arms!
|
Push rods connect the cam followers to the rocker arms.
|
Both heads on.
|
Both heads with rocker arms and push rods in place.
|
Gears for crankshaft, cam shaft, and balance shaft. Timing chain.
|
Closeup of push rods without rocker arms in the way.
|
Closeup of crank with piston caps.
|
Three rectangles in the center are intake ports; two squares at ends are coolant passages. The balance shaft is in place.
|
Cam shaft gear (lower) and balance shaft gear (upper) in place. The timing marks line up.
|
The balance shaft has a thin metal cover.
|
Mostly together. The pulley is in place on the front of the engine.
|
The block is upside-down again, and the oil pickup has been added.
|
Oil pan is on.
|
The oil filter bracket.
|
|
Intake manifold and valve covers are on. It's done!
|
|