Which Subaru engines have a timing chain?
Subaru vehicles are known for their reliability and innovative engineering, particularly their use of boxer engines. One common question among Subaru owners and enthusiasts is whether their engine uses a timing chain or a timing belt. This distinction is important because timing chains generally require less maintenance compared to timing belts. In this article, we’ll explore which Subaru engines are equipped with timing chains and what that means for your vehicle's maintenance.
Understanding Timing Chains vs. Timing Belts
Before diving into specific Subaru engines, it’s important to understand the difference between timing chains and timing belts:
- Timing Chains: Made of metal, timing chains are durable and designed to last the lifetime of the engine with proper maintenance. They are lubricated by engine oil and typically require less frequent replacement.
- Timing Belts: Made of rubber, timing belts need to be replaced periodically, usually every 60,000 to 100,000 miles, depending on the manufacturer’s recommendations.
Subaru has transitioned from timing belts to timing chains in many of its newer engines, offering drivers the benefit of reduced maintenance costs over time.
Subaru Engines with Timing Chains
Subaru began incorporating timing chains into their engines starting in the early 2010s. Here’s a breakdown of Subaru engines that use timing chains:
- FB Series Engines: The FB series, which includes the FB20 and FB25 engines, features timing chains. These engines are commonly found in models like the Subaru Forester, Impreza, and Crosstrek from 2011 onward.
- FA Series Engines: The FA series, including the FA20 and FA24 engines, also uses timing chains. These engines are found in vehicles like the Subaru BRZ, WRX, and Ascent.
- EE20 Diesel Engine: Subaru’s EE20 diesel engine, used in some international markets, is equipped with a timing chain.
Subaru Engines with Timing Belts
While many newer Subaru engines use timing chains, older models and certain engine series still rely on timing belts. These include:
- EJ Series Engines: The EJ series, including the EJ20 and EJ25 engines, uses timing belts. These engines were widely used in Subaru vehicles before the transition to the FB and FA series.
- EZ Series Engines: The EZ30 and EZ36 engines, found in models like the Subaru Outback and Tribeca, also use timing belts.
Why Timing Chains Are a Game-Changer
The shift to timing chains in Subaru’s newer engines reflects a broader industry trend toward reducing maintenance requirements. Timing chains are more durable and less prone to failure compared to timing belts, which can snap if not replaced on schedule. This change provides peace of mind for Subaru owners and reduces long-term maintenance costs.
Conclusion
If you own a Subaru or are considering purchasing one, knowing whether your engine has a timing chain or a timing belt is crucial for planning maintenance. Subaru’s newer FB and FA series engines, as well as the EE20 diesel engine, feature timing chains, offering enhanced durability and reliability. However, if you drive an older Subaru with an EJ or EZ series engine, be sure to follow the manufacturer’s recommended timing belt replacement schedule to avoid costly engine damage.
At Kevin’s Autos, we specialize in Subaru maintenance and repair. If you’re unsure about your engine type or need assistance with timing belt or chain maintenance, don’t hesitate to contact us. We’re here to keep your Subaru running smoothly for years to come!
Frequently Asked Questions
What Subaru models have a timing chain?
All Foresters from 2011 onward (2014 for the XT) have a timing chain.
Does 2025 Forester have a timing belt or chain?
2025 Subaru Forester Engine Timing Chain.
How do I know if my Subaru has a timing belt or chain?
Cars with a timing belt have a plastic cover near the engine block (often to the left-hand side), which provides easy access to the belt. It needs changing at regular intervals, which is why the removable cover is necessary. In cars with a timing chain, you won't see a plastic cover.
What year did Subaru switch to timing chains?
Simply, then, a 1997 to 2011 Forester will have a timing belt, while any of the fourth-gen Foresters (from 2013 or later) will have a timing chain. And for a brief period from 2011 to 2012, the Forester was fitted with either a timing belt or a timing chain depending on which engine was fitted.
