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Engine
If you're planning on working on your Mid-Size Polaris Ranger's engine, it's important to have a good understanding of how it works. Let's start with something basic, like engine oil. There's a lot of debate online about which oil brands and types are the best, but the truth is, as long as the oil meets the requirements for the engine, you can use any brand or type you want. Unlike some other vehicles, UTVs don't require synthetic oil for their mechanical timing mechanisms. We've talked to mechanics and engine builders who have never seen an engine fail because of the oil inside it. So, pick a brand you like, such as Mobil1, Rotella T6, Amsoil, or Napa Gold, and use the correct weight. You could even use 0-4 oil to save money. Don't stress about what type to use, as your Polaris Ranger doesn't care.
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If you are a Polaris Ranger owner, you may eventually need to rebuild your engine or replace some parts. This is a common issue among vehicle owners, and the Mid-Size Ranger is no exception. However, the good news is that you have options available to you.
If you're looking to get your engine rebuilt, places like Indy Speciality can do it for around $2,500, assuming that you trade in your own core. Of course, this can be expensive, so if you're looking to save some money, you can rebuild your engine yourself.
To rebuild your engine, you will need to purchase some parts. The crank and bearings will set you back $650-$700, while the jug pistons/rings go for around $250. With the right tools and some knowledge, you can have the motor out of your machine and on a bench in less than an hour. You can get the service manual from your local dealer, which has step-by-step instructions as well as every torque specification and other specs you'll need. However, don't forget the valve guides as well.
If you're looking to increase the horsepower of your Mid-Size Ranger, bore kits are also a popular engine mod. Companies like Alba and Millennium Tech Kit offer 602cc bore kits with claims of up to 25% horsepower increases. Some riders feel that bore kits are a waste of money, but a cam swap and ECM flash can give comparable results. Even a gain of only 4 horsepower is nearly a 10% gain, which is hardly unnoticeable. So, if you need an engine rebuild anyway, it might be worth the extra cash to get the big bore on your Mid-Size engine.
In conclusion, rebuilding your engine or upgrading its horsepower is possible for Mid-Size Polaris Ranger owners. While it may be expensive to have a professional rebuild your engine, doing it yourself or using a bore kit can be more affordable options. Either way, make sure to use the right tools and follow the instructions carefully to ensure that your vehicle runs smoothly.
