You possibly have a leak in the cylinder head gasket.You possibly have a leak in the head gasket.
engine block, piston, cylinder head, cylinder liner, camshaft, crankshaft, valves, crankcase/sump, inlet manifold, exhaust manifold, cylinder head cover
Steel or aluminum
Most cylinder heads are made from cast iron or aluminum.
Cast iron or aluminum are the most common materials used.
If its coming from under the chrome cylinder head cover, its the head cover gasket.
blown head gasket,cylinder head not torqued to specs. cracked/warped cylinder head.those are some causes.
Overheating or head bolts not properly torqued down when assembled.
usually there is a blown head gasket or warped head to get water in a cylinder
Warpage in an aluminum cylinder head is typically caused by overheating, which can lead to thermal expansion and subsequent distortion of the material. This can occur due to prolonged high engine temperatures, inadequate cooling, or a failed head gasket. Additionally, improper torque specifications during installation can contribute to uneven stress distribution, resulting in warping. Regular maintenance and monitoring can help prevent these issues.
Bad cylinder head gasket or valves.
Bad plug, plug wire, burnt valve, blown head gasket, on that cylinder.
rotted out headgasket and/or warped cylinder head . Aluminum head sensitive to no water in the engine.If it's just the headgasket it's not a big deal on a 4 cylinder datsun engine
The torque setting for the cylinder head on a Yamaha QT50 is typically around 18-22 ft-lbs (24-30 Nm). It's important to follow a specific tightening sequence and to ensure that the head is torqued evenly to prevent warping. Always consult the service manual for the most accurate specifications and guidelines specific to your model.
The cylinder head bolt torque specifications for the Isuzu 4BE1 engine are typically around 50 Nm (37 lb-ft) for the initial pass, followed by a second pass of 90 degrees. It's important to consult the specific service manual for your vehicle to confirm these values, as they can vary based on the model and year. Always ensure to follow the correct tightening sequence to avoid warping the cylinder head.
when refitting a cylander head , there is a proper bolt tightening sequence. this is to ensure the head is pulled down and tightened evenly to prevent warping of the head. by not using proper torgue and sequence, the head is liable to warp, crack or leak. this will then just make you start all over again
A blown head gasket or a cracked cylinder head. Or a cracked oil cooler ( if equipped )