How damaged custom piston seals can impact car engine performance?

How damaged custom piston seals can impact car engine performance?


An ultimate guide to stop engine leakage via oil seals


Custom piston seals
Can we repair a broken custom piston seals engine?

The custom piston seals tailored at any seal manufacturer are intended to owners of motorcycles and / or vintage cars as well as holders of conventional vehicles or competition.

They adapt to most makes of vehicles as well as to different types of engine. Constructed from copper, steel, stainless steel or reinforced paper, custom piston seals can be of various shapes and dimensions, in accordance with the originals:

valve stem seals, cylinder head seals, exhaust manifold and intake seals and all technical seals…Can we repair a broken engine? In theory yes.

Be careful though! The result of a misdiagnosis or a bad repair can ultimately cost you much more than a change. Before making a decision, know what is repairable and what is not.

Role of custom piston seals in Slammed head gasket

If the water or oil leaks to the outside, custom piston seals repair is easy and not surprisingly. In this case only, you can have the cylinder head disassembled and replace the worn seal.

Cost of the operation: around 600 €. Warning ! If it is a high-mileage engine, it is better to change the cylinder head.

Oil in water leak: Custom Piston seals

If the leak is internal and the oil goes into the water, it may be a faulty cylinder head gasket or a porous engine block. A kind of thick mayonnaise forms in the oil pan (rare).

Moreover, you can try to replace the cylinder head gasket or seal the porous part by adding an anti-oil leak. The result is far from guaranteed. A porous block often means replacing the entire engine.

Pressure increase in the cooling system

The pressure of the explosions passing through the water circuit is often the result of major overheating. The cylinder head is often deformed and sometimes cracked.

Quality custom piston seals repair involves testing and rectifying the cylinder head, two costly operations. If the engine is old with a high mileage, it is better to think of changing

Damaged Custom piston seals can make engine sound

A connecting rod

The engine is still running, but it makes a strange noise. Repeated “clack clack” escapes. One of the connecting rod bearings probably has a lot of play. Furthermore, It is possible to reach them by removing only the lower casing.

This makes it possible to locate the sick pin, to dismantle the connecting rod cap and to check the appearance of the crankshaft for a low cost.

Generally, the pads can even be replaced. Usually this repair does not take long. Better to dismantle the whole engine and replace the crankshaft and the bearings.

Hole in the housing

In a great crash accompanied by thick smoke, your engine stopped permanently. A large hole adorns the block and the oil has spilled on the ground. Similarly, connecting rod has just perforated the housing.

The engine cannot be repaired. More than an old block in good condition, it is better to look for a complete second-hand engine. You will be a big winner. But you need not to ignore importance of custom piston seals.

Custom piston seals on a petrol engine

A broken timing belt causes damage to the valves. On a petrol engine, the space left in the combustion chamber considerably limits the damage.

Custom piston seals in china
Broken camshaft on a diesel engine

Subsequently, it is possible to repair. There will only be a few bent custom piston seals to replace. We don’t straighten them. But we only replace those that have been damaged.

The diesel engine usually does not survive the breakage of the timing belt. In most cases, the valves are in crumbs. The camshaft is broken into two or three pieces and the cylinder head is ruined because the camshaft bearings are bent.

Replacing broken parts costs between 1,500 and 4,000 €. If the engine has more than 100,000 km, it is not profitable. Opt for the standard exchange or the purchase of a used motor.

Engine consumes oil with damaged custom piston seals

Every week, you have to refuel. An oil consumption of more than one liter per thousand kilometers is abnormal. Moreover, the exhaust tip is always greasy and sends blue and foul-smelling smoke into the atmosphere.

If your engine is rare, have the valve stem seals or custom piston seals changed. If it’s a small, current model, you can find a used one.

The car no longer “pulls”

Little or no oil or water consumption, but the car no longer travels uphill. Similarly, the cuts are small. Diagnosis: your engine is “flushed”.

You can try to “re-inflate” it with a “miracle” additive. The result may be minimal, not to say zero. Pistons, shirts and resetting all games will cost you more than a change of engine.

Diesel does not start anymore: custom piston seals defect

In the chilly morning, you have to do it several times so that your diesel ends up snapping in a big cloud of blue smoke. This may be due to lower cuts. Have them checked. If they are bad, the engine is dead. A replacement is preferable to a DIY.

The segmentation of the engine consists of a set of metal rings (segments) inserted in special slots (grooves) of the piston. It allows the latter to integrate perfectly into the interior surface of the cylinder.

Generally two or three in number per piston, these segments are in the form of open loops made of elastic steel which facilitate their mounting on the piston.

During engine intake and compression times, the custom piston seals the gases and prevent leakage. While during the explosion and exhaust times, the piston rings are responsible for wiping off the excess oil from the lubrication of

Custom piston seals Roles

In an engine, a distinction is made between the fire segment, the sealing segment and the scraper segment. The role of the fire segment is to seal the burning combustion gases and to avoid the transmission of heat to the rest of the piston.

Custom piston seals & suppliers
Secondly, it allows the oil sent by the scraper segment to be spread over the walls of the cylinder. So that the first segment finds enough lubrication. Finally, the scraper segment prevents the oil from the rod from rising.
The sealing segment plays a double role. First, it strengthens the custom piston seals in the control of gases and the transmission of heat.


The custom piston seals are subject to wear due to their reciprocating movements in the cylinder, their low weight and the intensity of the gases and the heat which they support. When due to gas and oil leaks, they can no longer play their role properly, we must therefore think of changing them.