What should compression be on a Rotax engine?

What should compression be on a Rotax engine?

If the test pressure is 80 psi then 76-78 psi is normal. The Rotax is so tight and solid that a 8-10 psi spread is a lot. You may be off these numbers 1-2 psi, but more than that may signal an issue or a bad test gauge.

How many horsepower is a Rotax 912?

100 HP
Technical details

Engine family 4-Stroke
Performance 73 kW / 100 HP
~ Weight 56.6 kg
Performance / RPM 73.5 kW / 5800 rpm
Engine torque / RPM 128 Nm / 5800 rpm

How many hours does a Rotax 912 last?

2000hrs Current maximum TBO for a 912 or 914 series engine, see later section regarding Overhaul.

How many cc is a Rotax 912 engine?

1,211 cc

The Rotax 912 was first sold in 1989 in non-certificated form for use in ultralights and motorgliders. The original 80 hp (60 kW) 912 UL engine has a capacity of 1,211 cc (73.9 cu in) and a compression ratio of 9.1:1.

What should the compression be on a Rotax 503?

110-130 and both sides should be pretty close to each other, and it will run good.

Is the Rotax 912 a good engine?

912 engines are reliable in the extreme. I trust mine with my and my famly’s life. Like any mechanical item there are always things to maintain or repair, but overall they are as good if not better than “certified” aircraft engines.

How much does a Rotax 912 is cost?

$23,918
Earlier this year, Rotax introduced a fuel-injected version of the 100 hp 912 ULS, called the 912 iS. Schlitter said the current price for the 912 iS is $23,918.

How reliable is the Rotax 912 engine?

What is the TBO for a Rotax 912?

TBO is specified in both operational hours and calendar time since first put into service. Per the Rotax Maintenance Manual, TBO for newer 912ULS engines is 2000 hours or 15 years, whichever comes first.

912ULS Exrended TBO.

Title Category Replies
High Oil Temp 912ULS 912 / 914 Technical Questions 16

How much does a Rotax 503 weigh?

Rotax 503 UL DCDI 50HP Aircraft Engine

Performance
Compression ratio Theoretical: 10.8 Effective: 6.2
Weight
Engine with carburetors 73.2lbs / 33.2Kg
Exhaust system 11.2lbs / 5.1Kg

How much does a Rotax 912 cost?

Earlier this year, Rotax introduced a fuel-injected version of the 100 hp 912 ULS, called the 912 iS. Schlitter said the current price for the 912 iS is $23,918.

Why are Rotax engines so good?

The Rotax engines are very smart, with dual-path [engine control units] controlling the fuel injection. This allows for fully automated precise control over the fuel mixture which improves fuel efficiency, reliability and longevity providing super-efficient lean of peak operation.”

How much fuel does a Rotax 912 use?

According to the Rotax test data, the 912 ULS burned an average of 4.65 GPH in the test profile, while the 912 ULS burned 3.25 GPH for the equivalent power output, an efficiency improvement of 30.1 percent.

What iS the TBO for a Rotax 912?

Is the Rotax 503 reliable?

503 is a good engine: simple and reliable. If you use it following Rotax advise you will not regret to have bought it.

What is the horsepower of a Rotax 447?

41.6 hp
The Rotax 447 is a 41.6 hp (31 kW), inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.

How reliable are Rotax engines?

They are by far the most reliable power plant I have ever owned. I have bought used Aircraft with them, and sold several new LSA kits with new Rotax 912 units, and I have never had any issues with my own fleet or any of my customers. You change the oil, follow the maintenance schedule and just fly.

Is the Rotax 447 still in production?

The Rotax 40hp 447 and the 50hp 503 engines are no more. The last available unit was sold in January.

How much does a Rotax 447 weigh?

Rotax 447 UL SCDI 40HP Aircraft Engine

Performance
Compression ratio Theoretical: 9.6 Effective: 6.3
Weight
Engine with carburetor 61.3lbs / 27.8Kg
Exhaust system 10.8lbs / 4.9Kg

How many Rotax 912 engines have been made?

More than 50,000 engines of the Rotax 912 / 914 series were sold since 1989, resulting in more than 45 million flight hours of the fleet.

Are Rotax aircraft engines reliable?

Rotax four stroke aircraft engines have proven themselves as reliable pieces of machinery. They can be bought as experimental (UL), sport (S) or certified (A and F) engine and there are four main models (fuel injected too: i models) to date.

Where is the Rotax engine made?

Rotax engines are high-perfomance powersport engines, manufactured in Austria. Rotax offers a wide range of engines from 8 HP, 1-cylinder, 2-stroke models to 310 HP, 3-cylinder, 4-stroke supercharged engines. You can find Rotax engines in aircraft, snowmobiles, karts, onroad and offroad vehicles and Sea-Doos.

iS the Rotax 912 a good engine?

How much is a Rotax 912 engine?

Earlier this year, Rotax introduced a fuel-injected version of the 100 hp 912 ULS, called the 912 iS. Schlitter said the current price for the 912 iS is $23,918. “This engine is supposed to save fuel and increase range,” he said.

What is different about a Rotax engine?

AMT: What makes them different? Vogel: Well, Rotax engines use liquid cooling to keep their size and weight down. They have five-piece crankshafts, rather than the traditional one-piece forging used in most aviation engines.

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