The
process that engineers and experts used to generate reconditioned cylinder
heads is not very intricate. Several steps are to be taken in a very strict
order and once this is done, you can be assured about high quality results. In
this post, we take a brief look of the steps to take to bring out perfectly reconditioned
cylinder heads.
In
most cases, it happens inside the engine that valves contact with pistons with
such a force that the heads of some valves get damaged minutely or severely. To
make sure that they become just like what they were earlier, the following
steps are taken.
- In the first step, all the components of the cylinder and removed and once done, the cleaning process is initiated.
- These heads and all its components are left in the alkaline based hot take for overnight and the temperature of this tank is maintained at somewhere around 80 degrees.
- The benefit is that all the bulk of the sludge and carbon deposits that had built up over the years get removed completely.
Amidst
this, it is important to understand that the corrosion throughout the cylinder
is a major cause behind the failure of cylinder head gaskets. Engineers say
that this can be done easily with the help of quality coolant and by
maintaining a good earth.
- In the next step, experts use a die grinder and with it, the component gets prepared for welding.
- This welding will repair the corroded area and also the damages that valve failure caused to the component.
- Once all the damages are welded, the next step involves machining and with its help, technicians can reconstruct all the water jackets.
- They then, re-shape the combustion chambers and bring them back to original factory specifications.
- In case, the broken valves have damaged some of the valve seats, experts will remove them to install completely new seats.
Other
steps of the process of generating reconditioned cylinder heads are –
- The cylinder head is media blasted and pressure tested and is ready for machining.
- The gasket face is machined to within .0001″ to provide an exceptional mating surface for the head gasket to seal.
- It is finally washed and laid out ready for assembly.
- Once assembled and tested, reconditioned cylinder heads are now ready for delivery back to the customer.
