Engine Block Cleaning and Inspection F Car

Tools Required

1. Clean the following areas:

Notice: Do not use a caustic solution to clean the aluminum engine block.

Important: When cleaning an engine block in a thermal type oven, do not exceed 232°C (450°F).

•	The engine block in the solvent

•	Remove all sludge, dirt, or debris. Refer to Cleanliness and Care .

Caution: Wear safety glasses in order to avoid eye damage.

•	Dry the block with compressed air.

•	The gasket surfaces

•	Refer to Replacing Engine Gaskets .

•	The coolant passages

•	The oil galleries

•	The main bearing caps

•	The engine block cylinder head bolt holes for threadlocking material

•	Thread repair driver tool J 42385-107 may be used to clean the threads of old threadlocking material.

2. Inspect the following areas:

•	The cylinder walls for excessive scratches, gouging, or ring ridge

•	The coolant jacket for cracks

•	The valve lifter bores for excessive scoring or wear

•	The crankshaft bearing webs for cracks

•	The gasket sealing surfaces for excessive scratches or gouging

•	Refer to Replacing Engine Gaskets .

•	The oil galleries for restrictions

•	All threaded bolt holes for damage

3. Measure the following areas:

•	The cylinder bores for taper

•	The cylinder bores for excessive ring ridge at the top of the cylinder

1. Adjust the micrometer to 99.0 mm (3.897 in).



2. Insert the J 8087 into the micrometer and zero the bore gauge dial.
3. Use a bore gage and measure the cylinder bore for taper, out-of-round, and oversize.

Slide the bore gage up and down throughout the length of the cylinder bore. Check the bore both parallel and perpendicular to the centerline of the crankshaft.

A cylinder that measures 99.0-99.018 mm (3.897-3.898 in) may be honed and serviced with a standard size piston.

A cylinder bore that exceeds the maximum diameter must be serviced with an oversized piston.

Engine Block Cleaning and Inspection Y Car

Tools Required

1. Clean the following areas:

Notice: Do not use a caustic solution to clean the aluminum engine block.

Important: When cleaning an engine block in a thermal type oven, do not exceed 232°C (450°F).

•	The engine block in the solvent

•	Remove all sludge, dirt, or debris. Refer to Cleanliness and Care .

Caution: Wear safety glasses in order to avoid eye damage.

•	Dry the block with compressed air.

•	The gasket surfaces

•	Refer to Replacing Engine Gaskets .

•	The coolant passages

•	The oil galleries

•	The main bearing caps

•	The engine block head bolt holes for threadlocking material

•	Thread repair tool J 42385-107 may be used to clean the threads of old threadlocking material.

2. Inspect the following areas:

•	The cylinder walls for excessive scratches, gouging, or ring ridge

•	The coolant jacket for cracks

•	The valve lifter bores for excessive scoring or wear

•	The crankshaft bearing webs for cracks

•	The gasket sealing surfaces for excessive scratches or gouging

•	Refer to Replacing Engine Gaskets .

•	The oil galleries for restrictions

•	All threaded bolt holes for damage

3. Measure the following areas:

•	The cylinder bores for taper

•	The cylinder bores for excessive ring ridge at the top of the cylinder

1. Adjust the micrometer to 99.0 mm (3.897 in).
2. Insert the J 8087 into the micrometer and zero the bore gauge dial.



3. Use a bore gage and measure the cylinder bore for taper, out-of-round, and oversize.

Slide the bore gage up and down throughout the length of the cylinder bore. Check the bore both parallel and perpendicular to the centerline of the crankshaft.

A cylinder that measures 99.0-99.018 mm (3.897-3.898 in) may be honed and serviced with a standard size piston.

A cylinder bore that exceeds the maximum diameter must be serviced with an oversized piston.