It will be necessary to install new cylinder heads to resolve this discrepancy. The Harley Davidson 103 engine can also have valve stick issues. The most commonly reported issue is oil leaks, which can be caused by worn or damaged gaskets and seals. The 103 Harley engine is reliable. However, youre probably looking at several culprits. While the Twin Cam is arguably one of the most reliable engines in Harley-Davidsons lineup, there have been several issues with certain models over the years. These simple steps will go a long way toward making sure your Harley stays healthy for years to come! In addition to this feature, it includes a higher compression ratio than previous models resulting in improved fuel efficiency without sacrificing much power output when compared to other engines within Harleys lineup such as V-Twin or High Output twins like those found on Softails or Dynas. This video explains some of those problems that you may or may not be having. However, when it comes to the crankshaft itself, one of the most common issues is the incorrect positioning of the crankshaft position sensor. Engine overheating is one of the main technical issues encountered by Harley 103 engine 2. Hard Starting A motorcycle that is hard to start can be a significant inconvenience. These engines don't like high RPMs, they hate continuous riding sessions without a stop during hot weather. Engine overheating is one of the main technical issues 6 Common Harley Davidson 103 Engine Problems, Triumph Speedmaster Common Problems & Fixes, Harley Davidson Error Codes, Meanings & Fixes, Harley Davidson 103 Compensator Problems & Fixes, Harley Davidson Fuel Gauge Not Working: Causes & Fixes, Harley Davidson Radio Display Not Working: Causes & Fixes, 8 Common Harley Davidson Street 500 Problems & Fixes, Kawasaki KRX 1000 Common Problems & Fixes, Always check the radiator heating position. When it comes to purchasing a Harley Twin Cam, there are certain years that should be avoided. Remember, a well-maintained engine not only functions efficiently but also increases the lifespan of your bike. The M8 also features more efficient oil circulation which helps reduce internal component wear and tear by providing better lubrication throughout its life cycle. The Harley Davidson 103 engine is known for its power and performance, but in some cases, it may exhibit instability and produce unusual sounds such as pinging, There are many reasons you would have an engine overheating, and fortunately, most of them are easy to solve. Compared to previous Big Twin engines, the 103 produces 10 percent more torque at lower RPMs for better acceleration and hill climbing ability. If you find out the coolant is leaking, you need to get your bike to a mechanic to fix it. The sound was extremely loud and top dead center form the tank. The main advantage to this larger engine is increased power output. This makes it slightly bigger than traditional Big Twins like the 80ci Evolution or 88ci Twin Cam models that came before it. However, the problem can be detected early through regular checkups and maintenance. With the right care and attention, your Harley can provide many years of enjoyment on the open road. This is why regular maintenance and replacement of spark plugs is crucial to ensure optimal engine performance. Worst Years for Harley Twin Cam Years to Avoid? Check the radiator when you are at the workshop, Ensure that the oil tank is full for regular riding. This means that you will never lose interest in riding your bike. Several factors can cause this, including loose wiring, a damaged alternator, or a dead battery. WebSeveral potential Harley Davidson 103 Compensator issues can cause engine hesitation or stall. The failure of this part can damage the entire lower end of the motorcycle requiring extensive repairs. To start with, the Harley Davidson 103 engine is one of the most popular engines used in motorcycles today. However, it is not without its flaws. If youre hearing a knocking noise coming from your engine, try switching to a higher octane fuel and check your timing advance. On all grounds, the Harley Davidson engine 103 horsepower is a great option for anyone looking for a reliable, powerful engine. After pouring in the oil, it is essential to check the oil level to ensure that it is at the appropriate level. The engine runs on an oil cooler that does not effectively cool the engine system. Its unsafe on public roads and highways. In addition, engine overheating can be a very serious problem, causing possible damage to your engine. The High Output Twin Cam 103 has more cam lift and a So, heres a list with rare issues and culprits: 01. However, like any other part of a motorcycle, the belt and chain require regular maintenance to avoid any potential problems on the road. In this article, we will And it is available in a variety of sizes, so you can choose the right one for your needs. Are you having trouble with your Harley Davidson 103 engine? Harley 103 engine produces 103 hp which equals to 110 lbs-ft of torque. See options LONGBLOCK Therefore, its vital to address them as soon as possible to ensure safety. The main problems of Harley 103 engines include overheating during long rides, excess noise production, loss of the crankshaft, and starter failure. Have you been experiencing some issues lately? Not at the high miles you ask, but I have 47,000 miles on my 20 month old 2011 Road King Classic, 103 engine is perfect and has had no problems or concern. Sometimes, it tends to go out of position because of those forces. Great motor. Neglecting the brakes can not only lead to accidents but also cause costly damage to your bikes other parts, including the wheels and tires. WebWe know how annoying Harley Davidson 103 engine problems can beespecially when you cant find anybody with a similar problem. } It will help you know when your coolant is short for you to refill. On the other hand, if the sensor is placed onto the core but is too loose, it will lose power on its acceleration while idling. Take the necessary time to ensure that everything is correctly placed to prevent any potential damage and ensure optimal performance. It could cause the engine not to start. Harley Davidson 103 is a great choice for anyone looking for a powerful and reliable motorcycle. Its recommended to check them frequently and replace them if necessary to avoid any unexpected issues while riding. You should also perform a monthly check up on the fuel valves, fittings, and lines for leaks. Required fields are marked *. Stage 1 (intake, exhaust, tune) average 10K miles per year. The M8 brings several improvements over its predecessor including increased displacement up to 114 cubic inches (1868 cc), improved cooling system with four valves per cylinder instead of two found in earlier designs, as well as reduced vibration at idle speeds due to a counterbalancing system that runs off both ends of the crankshaft. It all depends on your individual needs and preferences regarding performance, power, and reliability. In addition to this feature, it includes a higher compression ratio than previous models resulting in improved fuel efficiency without sacrificing much power output when compared to other engines within Harley's lineup such as V-Twin or High Output twins like those found on Softails or Dynas. From issues with excessive heat to oil leaks and more, owners of these bikes have experienced some frustrating and costly repairs. Some people have had good experiences with Harley Davidson 103 Engine because they could maintain the engine in the right way. Due to the drop in the outside temperature, it becomes tougher for the engine to start instantly. However, in general terms, most Harley-Davidson 103 models can be expected to get around 35 MPG (miles per gallon). 99 Fatboy was my favorite bike out of the 6 I have owned. Crankshaft Issue Pressed with the 400-ton press at the factory and sooner, it will come out of the crank earlier 03. In order for an internal combustion engine to run properly, there must be an adequate amount of compression in each cylinder. This will help keep dust out of your engine and improve performance. Another common problem associated with the Harley-Davidson 103 engine is oil leakage from either the crankcase breather valve or various seals throughout the motor. During each episode I got of the gas; the pinging would quit and then started up again. A new engine was on the way from Harley. Any of these problems can cause electrical faults, which could result in electrical shock or fires. With this upgrade, the engine can deliver optimal performance, allowing you to enjoy a more comfortable and exciting riding experience. Stay updated with the latest news, reviews, and troubleshooting guides for all things related to motorcycle parts, gears, accessories, and more, 2023 BIKERWHIZZ - IS A PARTICIPANT IN THE AMAZON SERVICES LLC ASSOCIATES PROGRAM, AN AFFILIATE ADVERTISING PROGRAM DESIGNED TO PROVIDE A MEANS FOR SITES TO EARN ADVERTISING FEES BY ADVERTISING AND LINKING TO AMAZON, Harley Davidson 103 Engine Problems and Solutions. I believe that most of the issues with Harleys are the owners getting in above their heads and trying to do work they really shouldn't be doing and then blaming Harley or some aftermarket part maker for burning up their 2 Pinesthi Mukti Rizky Wibowo Mechanic at home. Starting at 2400 rpm & up. If so, youre not alone. - Electronic Sequential Port Fuel Injection (ESPFI): This fuel injection system allows for precise control over fuel delivery by detecting changes in air pressure throughout each combustion cycle for optimal performance and efficiency levels every ride. Required fields are marked *. Thats an important question to consider when investing in such a powerful piece of machinery. WebEngines Longblock Engine Program HARLEY-DAVIDSON LONGBLOCK PROGRAM Your engine is the heart and soul of your Harley-Davidson motorcycle. The Harley Davidson Twin Cam 103 engine has 1688 cc (103 cubic inches) of displacement producing 72.8 horsepower @ 5500 rpm and 84.4 ft lbs of torque @ 4250 If a crankshaft issue causes a major problem with the Harley Davidson engine, you need to get the motorbike to your mechanic for proper fixing. After a regular drive, you should drain your engine oil and refill with a new one. - Dual Overhead Cams: The dual overhead cams provide greater valve timing accuracy resulting in smoother running operation with improved horsepower" This engine has push rod-operated overhead valves with hydraulic self-adjusting lifters and two valves per cylinder, a bore of 3.87 inches and stroke of 4.37 read more The Twin Cam engine evolved from the 88 to the 103 top-notch engines of the Project Rushmore over its manufacturing run. Performing this task is simple and can be easily accomplished by anyone. When it comes time to repower your Twin Cam-equipped motorcycle, the first stop should be your local Harleydealer. A lower number means it will flow easier at colder temperatures. These include problems with the charging system, improper lubrication of drivetrain components, and electrical problems due to faulty wiring or spark plugs. Harley-Davidson recommends engine oil with a viscosity of 20w50. I have personally have blown one oil pump on my 2017 RGU in 3,000 miles but there is a new oil pump that cures the problem. If youre a Harley Davidson enthusiast, then you know that the 103 engine is one of the most iconic and reliable engines in the Harley line-up. I am David Riedel founder of Bikerwhizz, I'm a technician at Keystone Harley Davidson with more than 10 years of industry experience. Other problems with the crankshaft include oil leakage issues near each main bearing or poor lubrication that ends in premature wear and tear on all of your bearings. Additionally, all owners should take care not to overload their bikes with excessive" This article will address some of the more common Harley Davidson 103 Engine Problems riders have been having, as well as their few solutions. The High Output Twin Cam 103 has more cam lift and a longer airbox, allowing it to provide more power. Its worth noting that improper connections can cause the bike to fail to start. If you have noticed any of these problems in your engine, you can take these steps to correct them. These noises are not normal and Yes! You must know the problems to help you find a better way to fix them for the best performance. The Harley 103 engine was released in 1999 as an upgrade to its predecessor, the 88 CI (1,450 ccs) engine. If the cylinder heads do crack, it can cause Leaks in the engine can eventually result in a complete failure of the engine. The engine could get too hot requiring riders to stop by for cooling. The spark plug works with air and fuel, so there could be rust due to corrosion on it. The 107 was introduced in 2017 as part of Harleys Milwaukee 8 lineup and offers improved performance over previous generations thanks to increased displacement size at 1,753 cc combined with improved airflow management technology across all cylinders. Save my name, email, and website in this browser for the next time I comment. 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