What is k Jetronic system?

What is k Jetronic system?

K-Jetronic (1973–1994) K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi). The volume of air taken in by the engine is measured to determine the amount of fuel to inject.

How does lh Jetronic work?

Overview of L/LH-Jetronic Fuel Injection Systems In pulsed injection, all air entering the engine first flows through an air-mass meter. The air-mass meter measures the air, which indicates engine load, and converts that measurement into an electrical signal to the control unit (ECU).

What is the difference between d Jetronic and l Jetronic?

d-jet used manifold pressure as it’s primary input for engine load. L-jet used an air flow sensor (flapper valve style) which directly measured engine air consumption as its primary input combined with an engine rpm input from the ignition module.

How cis fuel system works?

On a CIS engine, the air intake lifts a plunger, and fuel is injected in varying quantities depending on the position of the plunger. Should you have an air intake or vacuum leak, the plunger will not lift fully, and your engine will run lean, or potentially not start, depending on the severity of the vacuum leak.

How do you adjust K Jetronic fuel injection?

Remove one injector line from the top of the fuel distributor, and while looking into the injector port in the top of the fuel distributor turn the mixture adjustment screw clockwise until the port just starts to fill with fuel then turn the mixture screw 1/2 turn counter clockwise.

How does a warm up regulator work?

The Warm-up regulator ensures that the engine runs smoothly when looking for one cold start slowly getting warm. It is directly connected to the motor so that it can measure the motor temperature directly as a controlled variable. When the engine warms up, the bimetal spring bends back up.

What is KJET?

K-Jetronics is CIS, continuous/constant injection. it uses a mechanical ‘fuel distributor’ to adjust the fuel pressure according to the airflow, and the injectors always spray. Volvo abandoned K-Jet circa 1981 or 82 in favor of LH electronic injection.

What is CIS injection?

The continuous injection system (CIS) is so-called because, unlike many other fuel injection systems, the injectors do not open and close-they deliver fuel continuously. The main function of the fuel injectors is to atomize the continuous flow of fuel being supplied under pressure from the fuel distributor.

How do you adjust a CIS injection?

The mixture is adjusted by placing the adjustment tool in-between the fuel distributor and the large rubber boot (shown by arrow). The screw is indexed so that you can feel distinct ‘clicks’ as you rotate it. Turn it clockwise to richen up the mixture, and counter clockwise to lean it out.

What does a fuel accumulator do?

Re: Exactly what does a Fuel Accumulator do? ( It retains fuel pressure in the system to aid hot starting (reduces fuel vaporisation in the fuel lines), it doesn’t influence cold starts as the pressure does stay that long. It also smooths the pulses of the fuel pump (like a damper).

How much is a jet boat?

Jet boats fall within the usual range of recreational boats. They’re no more or less affordable than a bowrider runabout in the same size range, about 15- to 28-feet long. At the time this information went live, the price range for jet boats ranges from about $21,000 to about $66,000.

How do you troubleshoot a K-Jetronic engine?

K-Jetronic Troubleshooting – From a couple of specialists 1 Ignition. Inspect the cap, rotors, wires, and plugs. 2 Fuel delivery inadequate. Check for binding of airflow sensor, control plunger, incorrect control or system pressure and restricted injectors. 3 Injectors. Unequal delivery or poor spray pattern. Do a test and

What is the average system pressure on a K-Jetronic fuel system?

The average system pressure on all K-Jetronic fuel systems should be 520 kpa. The only vehicle that runs a higher pressure than this is the Porsche Turbo Carrara models from 1975 to 1979 which have a system pressure of 600 kpa. The system pressure of the K-Jetronic can not be reduced like an EFI system when cleaning with our LB291/2F Flow Meter.

What connectors can be used with D-Jetronic?

There is no connector or software coding in D-Jetronic. So you can combine absolutely everything from various manufacturers, even you can connect an injector to the air temperature sensor connector and vice versa. There is only one exception: You cannot connect a 4 pin throttle switch to a 5 pin connector for those cars with full-load contact.

What are the symptoms of a bad cold control valve?

1: Cold control pressure incorrect. The movement of the control plunger will be limited if the cold control pressure is too high. This in turn will limit the amount of fuel able to be delivered through the injectors. The result will be a lean ratio and will cause rough idle. 2: Auxillary air valve defective.