CORE A.-TOP 7S8791 - Caterpillar

Type 1 Engines and 9RM Engines
Illustration 1 g00296342
Cylinder and valve location for Type 1 engines and 9RM engines
(A) Exhaust valves
(B) Inlet valves Note: Type 1 engines can be identified in two ways. The first method refers to Illustration 1. When the valve cover is removed, look at the cylinder head valves. Type 1 engines have two exhaust valves in a row and two inlet valves that are in a row.The second method does not require the removal of the valve cover. Refer to the inlet manifold and the exhaust manifold. Type 1 engines have two exhaust ports in a row and two inlet ports that are in a row.Type ... Four cylinder and four strokeCombustion system ... Direct injectionNominal Bore ... 100 mm (3.937 inch)Stroke ... 127 mm (5.00 inch)Capacity ... 4 liters (243 in3)Compression Ratio ... 16:1Number of cylinders ... 4Arrangement of cylinders ... in-lineFiring Order ... 1, 3, 4, 2 Valve Lash Inlet valve ... 0.20 mm (.008 inch)Exhaust valve ... 0.45 mm (.018 inch)When the crankshaft is viewed from the front of the engine the crankshaft rotates in the following direction: ... ClockwiseWhen the camshaft is viewed from the front of the engine the camshaft rotates in the following direction: ... ClockwiseNote: The front end of the engine is opposite