The head gasket is found between the engine block and the cylinder head or heads in a V-type engine. The gasket functions as a seal that prevents the combustion process from leaking into the coolant passages that surround each cylinder. In many cases it seals oil passages from coolant passages so the fluids do not mix.

The price for an independent mechanic to replace a head gasket can be high due to the time-consuming labor involved, so, it is essential to know why you need to replace the head gasket. Have a professional ASE certified Master Auto parts Technician inspect your vehicle to conclusively determine whether or not your car needs to have the head gasket replaced. The purpose of this article is to help you learn how to install a head gasket to save money, but this should only be attempted by someone with a great deal of experience.

1,Obtain a service manual for your car's make and model.It will include step by step procedures with images that explain how to replace your head gasket(s). It will also list any special tools that you may need.

2,Drain all of the oil and coolant from your engine.Remove the parts that are connected to the cylinder head. Refer to your car's service manual for specifics, but in most cases this involves removing the exhaust manifold, the intake manifold, valve cover and drive belts. On many engines, you will need to remove the timing belt or timing chain. Be sure to study the timing belt/chain alignment procedures and be sure you clearly see the alignment marks before you disassemble the timing components.

3,Check the block to be sure no warping has occurred and send the head or heads to an automotive machine shop to be pressure tested.If the pressure test reveals no cracks, have the machine shop resurface the head(s). Don't ever re-install a cylinder head that has not been professionally re-surfaced and examined for cracks.

4,Clean the surface of the head and block.Do not scratch or remove any metal from either, as this may prevent the head gasket from sealing. Prevent any dirt or debris from getting into the cylinders or on pistons during the cleaning process. Inspect the piston tops and cylinder walls for any damage from the overheating or the head gasket problem. Make sure all surfaces are clean and dry.

5,Clean the bolt holes that tighten the head to the block.

6,Fit the head gasket onto the block.Use gasket sealant when specified by the manufacturer, and only use the directed amount in the particular places. Deviating from the manufacturer's recommendations can cause damage to the internal parts of the engine. Most head gaskets will be marked "top" and "up" for proper installation.

7,Place the head onto the block with the head gasket in place.

8,Use a torque wrench to tighten the head onto the block. Check the service manual for the head bolt torque sequence and the amount of torque that needs to be applied for each step. Some head bolts require 3 steps plus specified degree rotation as the final step

9,Replace the other engine components you removed.

10,Set the timing belt or chain back to the proper alignment marks by carefully rotating the camshaft and crankshaft.Check to see if the engine is an interference type of engine. If so, there is a very specific method to rotate and set up the camshaft to crankshaft timing so you don't damage or bend the valves! If equipped, install the distributor so it is properly timed with the number one cylinder. If applicable, adjust the valve clearance to proper specification.

11,Fill the engine with new oil, replace the oil filter and fill the cooling system with new factory specified coolant.When you start the engine, be sure to let the engine idle with the heater on full blast. This is so the cooling system has a chance to bleed out any air bubbles. Some engines require a specific cooling system bleeding procedure, be sure to check for that.

(PS: Our sale contact info. is as below:

Cel.: 86 15872743608

Tel.: 86 719-8111748

Facebook:miaoyuexport

Skype: Ada-miaoyu

Q Q:1105378431

E-mail：ada@miao-yu.com/inquiry@miao-yu.com

Website:www.imyautoparts.com/www.miao-yu.com)　

Posted by: miaoyu at 02:59 AM | No Comments | Add Comment
Post contains 699 words, total size 9 kb.

For decades,China's auto parts industry is in the spontaneous development state, such accumulate over a long period, there are many important problems failed to timely and effectively resolved, so the problem is becoming more and more, but also more serious.

With the massive influx of multinational auto parts companies to compete for the market, the domestic parts enterprises are squeezed. In addition, the innovation ability of our small and medium-sized auto parts enterprises is low, so the competition mechanism is imperfect, and form the extensive, disordered, lag and chaotic state. China's automobile production and sales ranked first in the world, but the auto parts is lack of core technology, so these make the domestic auto parts enterprises be in the "hollow" and "bubble" risk. If we do not reverse this lag situation now, auto power will be impossible. This situation will not be very good improvement in the short term, it may be quite a period of time, so in order to achieve gradual and progressive development, the task of transformation and upgrading is extremely urgent.

In order to promote the deeper transformation and upgrading of auto parts industry in our country, we must strengthen the top-level design reform.

First of all, change the thinking.

Revise the development ideas of "heavy car, light parts," On the development of automobile industry, the way of Japan and South Korea is only to catch the revitalization of the auto parts, and ignore the development of the car, but we are on the contrary, so the experience is worth learning.

Secondly, strengthen the construction of innovation ability.

For many high science and technology, parts enterprises or the whole industries are unable to solve, it must come forward by the national or local administration. From basic research to start, then it is proposed to establish the auto parts innovation system, which enable the auto parts become the core technology. At last, form a kind of innovative industrial chain and realize the disruptive innovations.

Thirdly, change the situation between scientific research and industry.

Try to support the establishment of professional R & D institutions, and develop into industrialization and socialization. In many international automobile manufacturing center, they establish small professional R & D institutions, and make them strong. Realize the commercialization of R & D business, which is very beneficial to the integration of vehicle research and development.

Due to the recovery of global economic crisis and the great progress of science and technology, the global auto industry are vigorously implement the mass customization business model, as a result, it force the small size auto parts enterprises to vigorously innovation. Innovation driven business development and closely cooperate with demand for development of new business model.

In the promotion of this new business model, automobile and parts industry have a new type of division : the main focus for the auto companies deal with the ever-changing market demand, the emphasis is on research, development, innovation of the vehicle, widely adopting outsourcing and obtaining parts by procurement methods. In order to cope with the changing requirements of the vehicle, we must deepen the continuous upgrading of professional parts and components. In this way, a new type of the whole zero relationship, namely collaborative engineering is formed.

About the collaborative engineering, the main expect for auto parts enterprises is : the professional products of their own enterprises must be high, big, fine, sharp, and strive to master the core technology.Collaborative engineering is the development trend of the current and future auto industry, in the development and deepening of China's auto industry, it has become an important microcosm of automobile power. The implementation of collaborative engineering is an important part of the transformation and upgrading of parts and components enterprises, who do well, who is the winner. 　　　　 　　 　　 　　 　　 　　 　　 　　

Posted by: miaoyu at 02:13 AM | No Comments | Add Comment
Post contains 645 words, total size 7 kb.