Why You Need To Replace Cylinder Head Gasket
They are many reasons you can remove your car cylinder head. Between cylinder head and the block is the head gasket installed. The procedure to remove cylinder head from your car is different from car to another one. First, you going to learn the cylinder head remove description. This description is to help you to understand your auto mechanic when he start explain all the reasons why your car cylinder head going to be removed from your car.
What Are The Most Reasons To Remove Cylinder Head From You Car?
The reason for cylinder head remove from your car is your worry about the smoke coming out of the exhaust. Knowing the reasons for the smoke explained by your auto mechanic, you going to save money. Is the time to learn and understand what your mechanic is talking about all the possibility, reasons and the work going to be done to stop the smoke coming out from your car exhaust, and why your car cylinder head should be removed?. There are three colors of smoke can come out from your car exhaust. Black, withe, or blue smoke. The most common reason for your car cylinder head remove is overheating.
Cylinder Head Description
The cylinder head comprises of single camshaft, or double camshaft, single valve rocker shaft assembly or double shaft assembly held by bearing caps. Are valves namely inlet valves, exhaust valves. Depending on the specs, there are from 8 to 24 valves, that are in cased by guides of the same number. The valves are secured in the guides by lower spring seat, valve stem seal, valve spring, upper spring seat and locked by cotters. The camshaft run on the top of cam followers, hydraulic lifters or bucket tappet with shim, turned by camshaft sprocket locked with key behind it oil seal.
How To Remove The Valves?
If you want to remove the valves from the cylinder head you need to use valve spring compressing tool. Compress the spring, remove the cotters, release the tool and remove the valve, spring, retainers and stem seal. When the stem seals are removed they must be replaced with new one. The valve bent, scored stems, burned or pitted heads or faces must be rejected. The valves with faces are badly pitted, the seats must be cleaned, grinded and refaced on a valve grinding machine. Or you can also use suction tool and grinding pastes. Under the heading of the valves must be cleaned off all traces of grinding paste from the valve and the seats.
The Guides Removed
The guide are worn that mean are oversize. Don’t use the new valves with worn guides. To check the clearance of the guides and the valves is inserting the valve into the guide and moving it from side to side. Worn guides can cause the oil from cylinder to go through and rest on the top of the piston. The guides need to be pressed out from the head.
The Valve Seals.
The Hydraulic Lifters, Cam followers, Bucket Tappet
If your car cylinder head was removed and skimmed the tappet must be sit and adjust according to the specification of your car, if this adjustment not done the tappet going to be noisy. The hydraulic lifters must be bleed, they can cause noisy tappet and the malfunction of the opening and the closing of the valves. The bucket tappet must be shimmed eliminating the tappet noise and the perfect functioning of the valves.
The adjustment of the valve clearance is very important as they effect engine timing and the performance of your car. The excessive clearance will reduce the valve lift and the opening duration and your car engine performance. The clearance can cause also excessive wear on the valves and noisy. Tight or zero clearance effect timing too, can hold the valve clear of its seat, result of lost of compression and burned valves and seats. This information going to help you if anything go wrong after fitting the cylinder head back in your car, can save you also from another extra charges from your mechanic if the work wasn’t done perfectly on the first time.
I, Fouzi thank you for subscribing, visit, and your comment. This information is free for you and one of my ebook. Subscribe and get your ebook is free. The part one ( How You Diagnose Your Car Problem To Save Money ) is Free for you . If your car is in need for any problems with cylinder head visit Fouzis Service Centre for free quotation and repairs.