It isn’t always easy to change engine heads or cylinder heads. However, you can undertake this work at home. The more automotive knowledge you have, the easier the work will be. Follow the steps below to successfully replace your engine cylinder head.
1 – REMOVAL
To start, raise the front end of the car onto jack stands to help make workspace. Remove the left front wheel of the car, and take away all the belts for the accessories in the engine. Loosen the V belt and the timing belt tensioner too. Now, use sockets to take away the exhaust pipe at the manifold by unbolting it. Take out the air cleaner and all of its hoses. Remove too the sensors that are attached to the cylinder head. You should be able to do all of this with hand.
After stopping the fuel pressure, unbolt both the fuel lines, the throttle cable and the kick down cable for the transmission. Empty the radiator and remove the upper radiator hose. Finally, take out the spark plug wires. You will now have complete clearance to the engine head. To remove it, loosen the outside bolts on opposite sides and work inward. Once you’ve removed all the bolts, you will need a pry bar to remove the engine head.
2 – PREPARATION
Before you the cylinder head, you have to clean off all the surfaces thoroughly to take off the accumulated grease and grime. A scrubbing pad is good for this job and should be accompanied by using a rag soaked in brake cleaner.
Take time to put the timing mark on the cam gear according to the service manual. This makes sure the valves will be in the right position. You’ll need a locking tool to hold them back in place. Follow this by aligning the marks on the block to the marks on the crankshaft.
3 – GASKET
Before mounting on the new engine head, you’ll need to fit a new cylinder head gasket. Make sure the correct side is facing up and locate it over the pins on the block, ensure everything is correctly lined up.
4 – NEW HEAD
To replace the engine head, put the new head on the block using the pins to ensure it’s placed properly on the block. Before fixing the bolts in place, you should lube each one and then tighten slightly with your hand.
To tighten down the engine head, you’ll need to use a torque wrench. Don’t forget that you need to tighten down the bolts in the proper order and to the correct torque. The information for this will be found in your service manual. When fully tightened, start to reattach all the other engine elements. You should do this in the reverse order to the way you disconnected them. With the belts, make sure they’re properly taut. Before lowering the car from the jack stands, check all connections once more for tightness and correctness