How Many Miles Will A Rebuilt Engine Last
- Posted by:
- Admin
- Tags:
- Rebuilt Engines, Build Or Replace Engine, Car Engines
- Posted date:
- 20-07-2022

Does a rebuilt engine last long? Is it better to replace or rebuild the engine? This article asks: how many miles will a rebuilt engine last? and covers many common questions regarding the effectiveness of rebuilt engines.
How Many Miles Will A Rebuilt Engine Last?
An adequately rebuilt or overhauled engine should last just as long, if not longer, than the original. A rebuild is a hand-built engine assembled using upgraded bearings, valves, valve seals, valve springs, gaskets, rings, oil pumps, camshafts, and more.
The engines are balanced, machined, and assembled to the exact specifications that the manufacturer creates through the mass production process. The proper machining and honing of a long-serving engine block also produces the more exact cylinder bore dimensions and cylinder wall straightness.
If the block is bored, then the engine gains displacement. This will then usually develop into higher compression and more power. The rebuilding of an engine can also allow for tailoring the output/performance of the engine for a specific use.

Read More About Engine Rebuild Services In Northallerton And North Yorkshire
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What Is The Purpose Of Engine Refurbishment?
What Improves Engine Performance?
What Engine Modifications Make A Car Faster?
Does Rebuilding An Engine Make It New?
A rebuilt engine is an engine that has been used for the majority of its lifespan and has now gone through a complete overhaul in order to extend the vehicle's lifespan. A rebuilt engine has been fully taken apart and then had its internal components either repaired, refinished, or more commonly replaced with new or refurbished parts.
A rebuilt engine is not a new engine, but when an engine is rebuilt fully, it can massively extend the lifespan of an engine and your vehicle. A rebuilt engine is not the same as a remanufactured engine.
A remanufactured engine has entirely new parts and has been totally overhauled to the original factory settings or high-performance specifications.
Should I Buy A Car That's Had An Engine Rebuild?
If the process is done correctly, a rebuilt engine is a fantastic investment. Rebuilt engines can perform just as well, if not better, than the vehicle's original engine. This is because many of the replacement parts that will be used for putting inside the engine will actually exceed the original engine's factory specifications.
Some rebuilt engines will even include warranty coverage so you can have some peace of mind. Warranties are commonly available, and they can range from one year to three years to even more. It is not only older vehicles that have been well-used that have their engines rebuilt. Newer vehicles can also experience boosts in performance with engine rebuild repairs on their records.

Engines are sometimes rebuilt in order to address problems such as excessive oil consumption. While the original issue can be a consequence of an improper break-in procedure or a factory defect, the newly rebuilt engine will be fully functional, as well as feature the balance of the original warranty.
If you are thinking of purchasing a car that has a rebuilt engine, ensure that you receive all the proper documentation about when the engine rebuilding service was performed. Pre-purchase inspections are always important and a great idea whenever you are looking at a used car, but it is especially crucial when you are looking at vehicles with rebuilt engines.
Is It Better To Rebuild Or Replace The Engine?
If your car is having massive issues and the worst-case scenario is that you need a new engine so you can get your vehicle up and running, you need to make a decision on whether it would be wise to replace or rebuild the machinery.
You need to take a look at the pros and cons. Depending on why exactly your engine has failed, it may actually be cheaper to have your engine rebuilt rather than purchasing a new one. The process of rebuilding an engine is not too difficult. It just takes attention to detail and a lot of time, so long as you understand what you are actually doing.
The process begins with removing the engine from your vehicle and then disassembling it. Once the engine has been disassembled, it is time to locate all of the engine's broken or damaged parts. The parts that are faulty or malfunctioning need to be replaced with new or refurbished parts.
The engine is then reassembled and reconnected to your vehicle. For car owners who have a lot of experience with auto repair and mechanical experience, the engine rebuilding process should be very straightforward and can result in the individual saving thousands of dollars.
However, the process of rebuilding an engine should only ever be done by professionals who know what they are doing. Any small mistakes can lead to the entire engine being ruined and lead to the vehicle as a whole becoming damaged.
It is not uncommon that parts of the engine that need to be replaced will end up costing just as much as a whole new engine. When you are faced with this dilemma, we would recommend just opting for replacing your engine rather than the rebuilding process.
There are several benefits to having a brand new engine installed rather than a rebuild. For example:
- Majorly increase the lifespan of your vehicle as a whole
- Ensures that your vehicle is more reliable than it was previously
- Cuts out the costs associated with repair and replacement for belts, filters, hoses, and coolant
If you do happen to experience a total engine failure with your vehicle, then it is important to remember that the cost of a brand new engine may not be something you are willing to pay for, or even able to pay for.
In this situation, it is often less expensive to spend the money on a new or used car that has a functioning engine installed.
How Long Will A Replaced Engine Last?
You can run a rebuilt engine for an unlimited amount of miles as long as the system is properly lubricated and well maintained. These kinds of discussions can vary wildly depending on the type of engine that you own.
Your specific engine may have some kind of fundamental manufacturing weakness that can limit the chances of your reaching two hundred thousand miles, but it is hard to say without knowing the specifics of your engine. There are some engines which are designed with planned obsolescence systems installed into the engine.
The engine will begin to break and malfunction due to several tweaks found within the design of the engine. This can be assigned to low durability metals, leaner parts, or even hidden Achilles' heels hidden within the engine's design.
Volkswagen is very well known for adding planned obsolescence systems into their engines. The manufacturer's famous 1.8T engines were designed with an oil pan that is simply far too small, as well as an ultrafine oil-pickup screen.
This led to the oil overheating which led to coking.
Does Rebuilding An Engine Make It Last Longer?
Rebuilding an engine can be a fantastic way to extend the lifespan of your vehicle. This will allow you to use your vehicle for several more years. This is assuming that the other parts of the vehicle, such as the chassis, are in good working condition too.
The work associated with an engine rebuild will typically come with a warranty that will cover at least one year or twelve thousand miles. However, other warranties can extend further to around three years and even unlimited miles.
Do keep in mind that an engine rebuild is not always the best solution for all engine issues. In many cases, a minor repair will be cheaper and sufficient enough to resolve the vehicle's issue.
There are many benefits of having an engine rebuilt. If you live in Northallerton or North Yorkshire, you and are looking for ways to improve your car performance you can contact us today.