What causes water in four cylinder 1 A Z engine

NOTE: Ford does not provide camshaft gear timing marks, or information to perform timing belt service without the special tools shown in this procedure.

REMOVAL
1. Drain engine coolant from radiator and cylinder block by removing the drain plugs.
2. Remove the intake manifold.
3. Remove exhaust manifold.
4. Remove camshafts.
5. Remove valve tappets from cylinder head, then support front of engine with wood block between crankshaft pulley and front subframe.
6. Remove righthand engine lifting eye bolt, then righthand engine lifting eye.
7. Remove power steering pump mounting bracket and cylinder head support bracket.
8. Remove camshaft timing belt tensioner pulley and front cover from front of cylinder head.
9. Remove water thermostat housing from cylinder head as follows:
a. Raise and support vehicle.
b. Disconnect crankcase ventilation tube from positive crankcase ventilation valve.
c. Disconnect upper radiator hose and radiator overflow hose from water hose connection.
d. Remove water outlet connection bolts and water hose connection from water thermostat housing.
e. Remove water thermostat and seal from water thermostat, then seal from water thermostat housing. Inspect seals for damage and replace if necessary.
10. Remove ignition coil bracket from cylinder head as follows:
a. Disconnect fuel charging wiring or engine control sensor wiring from ignition coil, then ignition wires by squeezing locking tabs and twisting while pulling upward.
b. Remove ignition coil bolts or screws, then coil.
c. Remove ignition coil bracket.

Fig. 11 Cylinder head bolt removal sequence


11. Remove spark plugs from cylinder head, then cylinder head bolts in sequence. Discard cylinder head bolts.
12. Remove cylinder head and head gasket from cylinder block.
13. If necessary, remove lefthand engine lifting eye from cylinder head.
14. Inspect cylinder head and cylinder block, then replace components as required.

INSTALLATION
1. Reverse procedure to install, noting following:
a. Clean cylinder head intake manifold, valve cover and cylinder head gasket surfaces. Ensure flatness of cylinder head and cylinder block gasket surfaces meets specifications.

Fig. 12 Cylinder head bolt tightening sequence



b. Torque new cylinder head bolts in sequence, first to 15-22 ft lb, then to 30-37 ft lb. Finally tighten all bolts an additional 90-120° in the same sequence.

Radiator coolant in the engine oil is normally an indication of a failed cylinder head gasket or a crack in the cylinder head or both.

Running the engine in an overheated condition will cause head gasket failure and often a crack in the cylinder head.

The problem you have is coolant is escaping into the engine's lubrication passages via the failed head gasket or head crack and contaminating the engine oil. If not fixed you will cause further damage to the engine as oil contaminated with radiator coolant cannot adequately lubricate the engine.

Running a leak down test on each cylinder will confirm the leak. In this case you are going to need to have the cylinder head removed and thoroughly checked for cracks and any warpage as well as a new cylinder head gasket fitted. The condition the engine block surface will also need to be checked.

Could be a leaking cylinder head gasket or a small crack in the cylinder head. Is the head aluminum? Make and mileage of the vehicle will sometime help as some vehicle makes are notorious for head gasket problems. This allows coolant into the oil and causes this goo on the inside of the cap. Have a trustworthy shop check it out to be sure.

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I also recently replaced a head gasket. There are multiple things to look at when re installing your head all of which are going to require you to tear apart your car again. First did coolant spill into your combustion chambers as you removed the head ? (this would happen if you didn't drain the cooling system before you started)If coolant did spill in it should burn out quickly and then function normally. If not something went wrong as you installed your head and new head gasket and here are some possible causes.
1. Did you get your head machined so it isn't warped or did you replace it along with your head gasket. If not you need to 9/10 cars that blow a head gasket is because the head gets warped
2. Did you install the head gasket correctly. Its very easy to either put your head gasket upside down backwards either of which will cause massive amounts of coolant to go into the cylinders or leakage on to the ground.
3. Did you torque your head bolts to the torque recommended by the manufacturer if you have a repair manual it will say in there. Also it's recommended to replace the head bolts which may also be necessary.
It should be one of these or a combination of these issues also it is po

Then the problem is the water pump or a cracked Head, blown head gasket or cracked cylinder wall causing over pressure in the cooling system. Replace the water pump first then consider the other problems. If you do a compression check and have compression on all cylinders but extremely high compression on 1 or 2 then the problem is the Head gasket, head or Cylinder wall being cracked.

Overheating is not always caused by a bad water pump or bad engine firing timing.

The most common causes are:

• faulty radiator cap: steam/water will be escaping from the caps when engine is hot or oveflow tank overflows or empty!
  
• crack cylinder head gasket: check when engine is cold thru radiator cap hole for milky oil in water radiator or large bubbles in radiator water after starting engine. Also check if water steam comes out of exhaust.
  
• cylinder head itself: same symtoms as for gasket above.

Hope it helps you find your problems.

hi, if you are changing the head gasket then it may be worth checking the water pump and thermostat as it could have been one of these that failed causing it to over heat and then blown the head gasket so check the water pump and thermostat once you have the cylinder head off.

You may need the head checking to see if it has been warped but this is unlikely on this make of vehicle.

Once you have done the gasket make sure that when you fill the coolant up you only trickle the water in to prevent any air lock as this will cause it to over heat again, check for any bleed screws on the coolant system to let the air out whilst filling the coolant up,

Its best you check in the workshop manual for these as their may not be none as it could be self bleed system.

It also worth checking if the head bolts need changing as they do stretch and can cause the gasket not to seal properly so replacing these may be a good idea.

Let me know how you get on or if you need further assistance ok.

ps what makes you think the head gasket has gone??

This is a very common problem with the 2.2 Liter engine. The Cylinder Head Gasket has most likely failed due to expansion and contraction of dissimilar metals. The Cylinder head is Aluminum and the Cylinder Block is Cast Iron. The Cylinder Head expands at a greater rate than the Cylinder Block creating a Scrubbing Action on the Head Gasket. Another problem on this engine is the passenger side rearmost Cylinder Head Bolt is typically overtightened at the factory distorting the Cylinder Head and causing Gasket Failure directly around that bolt. I have had to resurface cylinder heads and replaced gaskets on many of these engines where these symptoms were described.

FastestRobe

The cylinder head is a crucial part of all combustion engines, and cylinder head cracking can result in catastrophic damage to the engine. In some cases, cylinder head cracking may result in such severe injury to the engine that it must be replaced. As a result, most motorists try to prevent cylinder head cracking, as an ounce of prevention in this case is worth many pounds of cure. The causes of cylinder head cracking are all relatively simple and easy to prevent, except in the case of mechanical parts failure through no fault of the operator. The cylinder head, used in combination with a head gasket, seals the cylinders of the car, along with other parts associated with them. The cylinder head is customized for the vehicle, and has very precisely milled surfaces to provide a smooth and flush fit with all connecting parts. In the case of a minor crack, the cylinders may lose compression and misfire. Major cracks can cause severe damage to the cylinders of the engine. For this reason, when replacing either the cylinder head or the head gasket, make sure that you are using the correct parts, including bolts, for the job. Even a brand new car can experience cylinder head cracking if parts have been installed incorrectly or if there are weaknesses in the metal. Especially in the case of a vehicle which is still under warranty, drivers should contest the cylinder head cracking with the dealer. Be certain to inspect any vehicle before you purchase to check for weak spots in the metal or incorrectly installed components. This includes the cylinder head gasket, because improper installation of this vital part can cause cylinder head cracking. Cylinder head cracking has become more common as car manufacturers use mixed metals in their engines. Many vehicles, for example, have a solid cast iron engine block but an aluminum cylinder head. These two metals expand at different rates, and this can lead to cylinder head cracking. The most common cause of cylinder head cracking is overheating. When a vehicle overheats, it puts stress on all of its metal components, including the cylinder head, which is often at the center of the heat. This can cause the head gasket to fail, which may lead to cylinder head cracking as the components warp and pressure begins to leak. All drivers should properly maintain their vehicles to prevent overheating. Many drivers mistakenly pour cool water into the radiator when their vehicles overheat, in an attempt to bring the temperature down. This is not a good idea, because the rapid temperature change will cause cylinder head cracking due to thermal stress. In a case where the cylinder head survives overheating, the driver may inadvertently destroy it by trying to do good. To prevent overheating, make sure that your radiator is filled and in good condition, with a tightly sealed cap. Check to be certain that your engine thermostat is in good working order, and accurately reflecting the temperature. Make sure that you have no leaky belts or stretched hoses, and that the fan is working effectively. If your car does overheat, stop, turn off the engine, and allow it to cool completely before adding water. Cylinder head cracking can also be caused by localized hot spots in the engine, which usually represent a failure in some portion of the cooling system. Always make sure that hot spots are addressed, particularly if your head gasket has failed and required replacement recently. Hot spots are often caused by uneven expansion of engine parts, leaky hoses, and pre-ignition in the cylinders of the engine. If your car has overheated, check the cylinder head and gasket for signs of cracking or warping. If the cylinder head has warped even slightly out a flush state, it will cause cylinder head cracking. In this case, the head gasket may need to be replaced and the cylinder head should be ground even again before it cracks. Thanks for using FiXya - a FiXya rating is appreciated!

This sounds like a blown cylinder had gasket. Although on some engines you will find core plugs below the rocker coverin the head.