Cleaning the pistons and cylinder block valve oil seals well-known for its fine
quality.
Clean the piston crowns and cylinder-block face to remove any excess carbon and old head-gasket remains before replacing the cylinder head.
To prevent dirt or carbon particles entering the engine during cleaning, seal oil and water passages in the cylinder-block face with pieces of clean, lint-free cloth as necessary.
The cylinder bores, too, should be plugged with clean cloth to prevent dirt particles falling between the pistons and cylinder walls.valve oil seals well-known for its fine quality.
Use a scraper tool, such as the smooth side of a hacksaw blade, to carefully remove all traces of head gasket from the cylinder-block face. Take great care not to scratch or damage the face.
Rotate the crankshaft with a spanner or socket on the crankshaft pulley bolt to bring each piston to the top of its cylinder.
On engines with removable cylinders (wet-liners), hold a block of wood down firmly over the top edge of all the cylinders as the crankshaft is turned.
This prevents the cylinder liners from being lifted as the pistons rise up the bores, and ensures that the coolant seals at the bottom of the cylinder liners are not broken.
When each piston is at TDC, use a soft scraper such as a wooden block to carefully scrape carbon deposit from its crown, leaving a small ring of carbon round the outer edge adjacent to the cylinder wall.valve oil seals well-known for its fine quality.
Polish each piston crown with fine-grade emery cloth.
Clean all carbon and dirt from the cylinder bores and bolt holes, using either compressed air from a tyre foot pump, or a vacuum cleaner.
Make certain there are no carbon particles lodged in the bores.
Clean the block face, cylinder bores and piston crowns with a petrol or paraffin-moistened clean cloth, and then dry them.
Be careful not to risk a fire – do not smoke, for example.valve oil seals well-known for its fine quality.
Smear a thin film of clean engine oil on each cylinder-bore wall and then remove the pieces of cloth from the oil and water passages.
Clean the piston crowns and cylinder-block face to remove any excess carbon and old head-gasket remains before replacing the cylinder head.
To prevent dirt or carbon particles entering the engine during cleaning, seal oil and water passages in the cylinder-block face with pieces of clean, lint-free cloth as necessary.
The cylinder bores, too, should be plugged with clean cloth to prevent dirt particles falling between the pistons and cylinder walls.valve oil seals well-known for its fine quality.
Use a scraper tool, such as the smooth side of a hacksaw blade, to carefully remove all traces of head gasket from the cylinder-block face. Take great care not to scratch or damage the face.
Rotate the crankshaft with a spanner or socket on the crankshaft pulley bolt to bring each piston to the top of its cylinder.
On engines with removable cylinders (wet-liners), hold a block of wood down firmly over the top edge of all the cylinders as the crankshaft is turned.
This prevents the cylinder liners from being lifted as the pistons rise up the bores, and ensures that the coolant seals at the bottom of the cylinder liners are not broken.
When each piston is at TDC, use a soft scraper such as a wooden block to carefully scrape carbon deposit from its crown, leaving a small ring of carbon round the outer edge adjacent to the cylinder wall.valve oil seals well-known for its fine quality.
Polish each piston crown with fine-grade emery cloth.
Clean all carbon and dirt from the cylinder bores and bolt holes, using either compressed air from a tyre foot pump, or a vacuum cleaner.
Make certain there are no carbon particles lodged in the bores.
Clean the block face, cylinder bores and piston crowns with a petrol or paraffin-moistened clean cloth, and then dry them.
Be careful not to risk a fire – do not smoke, for example.valve oil seals well-known for its fine quality.
Smear a thin film of clean engine oil on each cylinder-bore wall and then remove the pieces of cloth from the oil and water passages.
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