G3508B, G3512B, G3512B, G3516B and G3520B Petroleum Engines Caterpillar

Removal Procedure

Start By:

1. Remove the rocker shaft assemblies and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rod - Remove".

Note: Repeat the procedure for each cylinder head.

1. Drain the coolant from the cooling system into a suitable container for storage or disposal.
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   Illustration 1	g00759319

2. Remove the bolts that fasten bracket (1) to the water manifold.

3. Remove the bolts from the valve cover base (2). Remove valve cover base (2) from the cylinder head.
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   Illustration 2	g00760142

4. Remove exhaust temperature sensor (3) from the cylinder head.
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   Illustration 3	g00760018

5. Remove the bolts from air inlet elbow (5). Remove gasket (7).

6. Remove the bolts and tube (4) . Remove gaskets (6).
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   Illustration 4	g00760271
   Typical example

7. Remove the bolts from exhaust elbow (9). Remove gasket (8).
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   Illustration 5	g00760306

8. Install Tooling (A) on cylinder head (11). Use the holes for the bolts that hold the valve cover base.

9. Fasten a suitable lifting device to cylinder head (11).

10. Remove bolts (10) and bolts (12) from cylinder head (11).

11. Remove cylinder head (11) from the engine. The weight of cylinder head (11) is approximately 47 kg (105 lb).
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    Illustration 6	g00760369

12. Remove cylinder head gasket (16), four seals (13), four seals (14), and O-ring seal (15) from the spacer plate.

13. Remove spacer plate (17).
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    Illustration 7	g00760395

14. Remove spacer plate gasket (18) from the dowels.

15. Remove O-ring seal (19) from the dowel.