Cylinder head grinding: work and cost
Content
Cylinder head grinding, also known as face milling, is an operation in which the parting line is corrected so that it remains flat. Thus, it is an intervention that often occurs after a localized leak on the cylinder head gasket. This loss of tightness causes deformation of the parting line due to its overheating. Find out in this article all the answers to your questions about cylinder head grinding!
🚗 How is cylinder head grinding done?
Made of cast iron or aluminum. buttock denotes the top of your engine... Thus, it is he who most often contains intake, injection and ignition system. Its role is to keep the cylinders inside and close the combustion chamber.
The seal between the cylinder head and engine blocking provided with a cylinder head gasket. However, if the cylinder head gasket is damaged leaksmachine oil or coolant may occur. These leaks can damage the cylinder head if not repaired in time, as the engine will overheat.
Replacing the cylinder head is a complex and rather expensive operation. Luckily when this one got hurt one overheating with one of two liquids, its deformation or corrosion can be corrected by surfacing buttock... Correcting or face milling the cylinder head will restore the flatness of the head gasket plane.
To perform this operation, several conditions must be met, they are listed below:
- Exceeding the minimum height recommended by the manufacturer is not allowed;
- The cylinder head must not already be repaired. Indeed, this cannot be corrected more than once;
- The manufacturer does not allow the cylinder head to be repaired, as this may impair the operation of the engine.
Special care must be taken to avoid grinding the cylinder head. maintaining your cooling system.
🔎 What thickness of the cylinder head gasket is required after grinding the cylinder head?
After grinding the cylinder head, the cylinder head gasket must be thicker than the original... Indeed, since the cylinder head has been planed, the original gasket will not be thick enough to guarantee a tight cylinder head.
Usually the thickness of the cylinder head gasket is overhang height of various pistons... If you are surfacing the cylinder head yourself, be sure to replace the cylinder head gasket with a new, suitable thickness. In any case, if you go to a professional cylinder head grinding, he knows exactly the thickness of the new cylinder head gasket that will be installed on your car.
⚡ Does grinding the cylinder head increase power?
If the cylinder head is repaired according to the power increase principle, the maneuver is different. Indeed, this is not done as part of the repair because the symptoms are present. Thus, grinding the cylinder head to increase power at the engine level consists of several stages:
- Grinding the cylinder head with a planer;
- Lapping valves ;
- Valve calibration;
- Cylinder head polishing;
- One reprogramming e.
It should also be noted that in order to obtain a noticeable increase in power, the change Butterfly body or air filter may be needed. These are maneuvers that require you to notify your insurer of the conclusion of a contract about your Car insurance.
💰 How much does cylinder head sharpening cost?
When you go to a cylinder head grinding mechanic, he will start with check the tightness of the cylinder head. Then he can start fixing the cylinder head.
As a rule, this maneuver is carried out only in specialized auto repair shops.
Then the cylinder head gasket is also replaced with a different thickness corresponding to the thickness of the rectified cylinder head. On the other hand, the mechanic will discover the cause of the cylinder head deformation. It could be a leak coolant, refusal thermostat or the cooling radiator is clogged. On average, this intervention will cost you from 200 € and 600 €.
Cylinder head grinding is a delicate operation that must be performed in the event of a malfunction in the cooling system. When unusual signs appear in the engine, it is necessary to respond as quickly as possible to avoid chain reactions that can lead to the breakdown of other parts.
