Mazda 2.5 Wl- T Engine For Sale

4 Things To Check When Buying A used car engine

Oil Quality Check

Checking the oil quality of a used car engine is your first and most important task when buying it. A lot of damage can be done if you buy an engine with bad oil in it, such as rust on parts and greasy valves. Also, parts like piston rings don't last long under these conditions. You want to know for sure that you are getting a good deal and not paying more than the car is worth because you failed to check the engine's oil quality. Even though checking engine oil seems like a simple and obvious thing to do, many people forget about it completely or realize too late they have bought an engine with bad oil in it. The proper way to check the engine's oil is by taking it out and putting it into a bucket of water. If you see bubbles coming from the bottom part of the oil, then this means that there is water in it which should mean that you should stay well away from buying this particular car.

Compression Testing

The next thing on your list to check when looking for used car engines is compression testing. This way, you will know if the engine has any problems before you buy it and how much value for money you can expect. There are two types of compression tests: visual and mechanic. A visual test only tells what sort of shape your valves are in but knowing about piston rings isn't possible. The mechanic test, on the other hand, tells about the condition of the piston rings and is usually only done by a trained mechanic.

Leak-down Testing

Another thing you should check when buying used car engines is leak-down testing. A good way to show how important it is to do this testing successfully is to give an example: if your engine leaks at least 4% of its compression in one cylinder, this means that there is a high probability that after a long time of running, you will have to replace all valves and piston rings in addition to rebuilding the engine due to oil leaking into it from pistons. Of course, some may think that they can spot this by looking at the engine and seeing if there are any oil leaks visible. However, finding a leak-down tester yourself might be difficult and it's not something you should put off doing either. You don't want to risk spending a lot of money on an engine that will need lots of work soon after you buy it!

Basic Engine Inspection

Lastly, you should always check for general wear and tear on the used car engines. This is very basic stuff but many people still forget about small things like checking which way the belts go round or putting some water into the radiator to see if some rusty orange colored liquid comes out. It goes without saying that little details can become big problems so it's always good to check them!

Conclusion

Please note the above information acts as guide only and you should always check everything with a qualified mechanic. If you are not sure what things mean, make sure to ask for assistance before buying anything.

(E&OE)