exactly what is "rebuilding a engine"??? i'm just curious?

Question

what does it do??

Answer 1

Depends on what the engine is hahaha jk jk. Well hmmm, first you would want to check the heads, block, crank for any damages. If all is good then you would proceed to the rebuilding which means hmmmm replacing all the worn parts in your motor. This means getting new pistons, rings, bearings, valves, bushings. Calibrating your throttle body bla bla ect. ect lol.

If you are asking this, don't try to rebuild. Go to your local junior college and take auto mechanics. Get good grades, and do projects where you have to rebuild or put together motors hehehehe. Once you got the know how then do yours or if you dont mind risking your motor, do it as one of the projects hehehee.

Good luck.

Answer 2

By now, you have a good idea of what is involved in rebuilding an engine. Everyone says that it is cheaper than getting a crate engine. I say that it depends on what you put into the rebuild. The hi-performance parts can add up quick. Especially, if you are putting in the stronger forged crank, pistons, and connecting rods. Roller cams and strong valve train components can mount up. So it could go either way.

If you decide to have the engine rebuilt, get a list of the work that is to be done and use that as a standard to compare other estimates from different shops.

good luck.

Answer 3

Not to add another statement on the tail end of rebuilding an engine but a further refinement is blue-printing an engine to either replacement parts manufactures specifications.

Piston clearance in the cylinder bores and cylinder bore finish greatly add to overall motor performance. Proper selection of main, rod and cam bearings allow for tighter clearances for less oil loss while the engine is running. It's vital that the valve guides be fitted properly for minimum oil loss. Today's high RPM motors depend on the use of low viscosity engine oil for best *adsorbsion, low oil temperatures and fast pump up to critical engine parts during start-up where 95% of engine wear occurs. The particular engine manufacturer publishes a good starting point for engine clearances. Aftermarket ring, bearing and piston manufactures often publish suggested clearances and finishes other than manufactures specifications which should be followed for best results.

Answer 4

The wear parts in an engine are some bearings, on the one hand, and the pistons and cylinders themselves on the other hand. In a full rebuild, you'd have to bore bigger cylinders and fit bigger pistons to make that fit like new. Then you'd replace all the bearings, which is much cheaper than fitting new pistons. Most of the money goes into reboring the cylinders and buying the new pistons.

Generally, you'd also replace the oil pump and the timing chain when you do this, but again that's small, cheap, easy stuff to do.

Answer 5

Rebuild mean to strip it and then RE-build it.

The engine is take down to the basics. And it is build back up. But certain parts that are known to wear are completely replaced. Other parts are measured for specs and if they are not within limits they are also replaced (sometime they are reworked to within specs).

Essentially it is re-built. In theory the rebuilt engine should be as good as new. But in practice, much depend on the skill level of the rebuilder.

Good Luck.

Answer 6

Depends on what its being rebuilt for.

Usually its reconditioning the parts to original Specifications and replacing bearings, seals, and Gasket all that. The block is usually machined to match original specifications. When having a engine rebuilt its always good to ask what exactly is going to be done. Each shop has there idea of what consists in a rebuild. What services will be done and what parts will be replaced new.

Answer 7

There are a lot of internal parts of an engine--cylinders, pistons, rods, valves

Rebuilding is basically going inside the engine and fixing or repairing whatever isnt working properly or is broken. An engine could be working totally find and you can still rebuild it.

For example: Lets say you want to make your engine stronger because you want to run NOS in your car. It would be smart to rebuild it with stronger forged internals, such as pistons.

Answer 8

The engine is stripped down, cleaned, and the worn parts replaced or reforged to original specifications.
Doing this brings it back close to its original durability and power, for much less money than building a new engine.

Answer 9

New valves, rings, bearings, anything that is worn out.