0
PORT TIMING DIAGRAM FOR 2S ENGINE
Aim :
To draw the port timing diagram of given two stroke cycle petrol engine .
Apparatus Required :
1. Two stroke petrol engine
2. Measuring tape
3. Chalk
Theory and Description :
In the case of two stroke cycle engines the inlet and exhaust valves are not present . Instead , the slots are cut on the cylinder itself at different elevation and they are called ports. There are three ports are present in the two stroke cycle engine .
1. Inlet port
2. Transfer port
3. Exhaust port
The diagram which shows the position of crank at which the above ports are open and close are called as port timing diagram.
The extreme position of the piston at the bottom of the cylinder is called " Bottom Dead centre " [BDC] . The extreme position of the piston at the top of the cylinder is called "TOP dead centre " [TDC ]
In two stroke petrol engine the inlet port open when the piston moves from BDC to TDC and is closed when the piston moves from TDC to BDC .
The transfer port is opened when the piston is moved from TDC to BDC and the fuel enters into the cylinder through this transport from the crank case of the engine . The transfer port is closed when piston moves from BDC to TDC . The transfer port opening and closing are measured with respect to the BDC .
The exhaust port is opened , when the piston moves from TDC to BDC and is closed when piston moves from BDC to TDC . The exhaust port opening and closing are measured with respect to the BDC.
Procedure :
1. Remove the ports cover and identify the three ports .
2. Mark the TDC and BDC position of the fly wheel . To mark this position follow the same procedure as followed in valve timing diagram .
3. Rotate the flywheel slowly in usual direction (usually clockwise ) and observe the movement of the piston
4. When the piston moves from BDC to TDC observe when the bottom edge of the piston . Just uncover the bottom end of the inlet port . This is the inlet port opening (IPO) condition , make the mark on the flywheel and measure the distance from TDC
5. When piston moves from TDC to BDC observe when the bottom edge of the piston completely covers the inlet port . This is the inlet port closing (IPC) condition . Make the mark on the flywheel and measure the distance from TDC .
6. When the piston moves from TDC to BDC , observe , when the top edge of the piston just uncover the exhaust port . This is the exhaust port opening [EPO] condition . Make the mark on the flywheel and measure the distance from BDC .
7. When the piston moves from BDC to TDC , observe , when the piston completely cover the exhaust port ,. This is the exhaust port closing condition [EPC] . Make the mark on the flywheel and measure the distance from BDC .
8. When the piston moves from TDC to BDC observe, when the top edge of the piston just uncover the transfer port . This is the transfer port opening [TPO] condition . Make the mark on the flywheel and measure the distance from BDC
9. When the piston moves from BDC to TDC , observe , when the piston completely covers the transfer port. This is the transfer port closing [TPC] condition . Make the mark on the flywheel and measure the distance from BDC .
Note : 1. The inlet port opening distance and closing distance from TDC are equal .
2. The exhaust port opening distance and closing distance from BDC are equal .
3. The transfer port opening distance and closing distance from BDC are equal .
Result :
The port timing diagram for the given two stroke cycle petrol engine was drawn.
What else can I help you with?
How do you draw valve timing diagram of four stroke diesel engine?
Jason
Valve timing diagram of 2 stroke engine?
valve timing diagram of two stroke engine
Where are the timing marks on Toyota 2c diesel engine?
Timing Mark for desiel
How do you set timing on 2C Turbo diesel engine?
To start timing on the 2C Turbo diesel engine, you will have to locate or distinguish camshaft timing marks.
How do you sewt up Mazda t3500 diesel pump timing?
To set up the timing on a Mazda T3500 diesel pump, first ensure the engine is at TDC (Top Dead Center) on the compression stroke for cylinder one. Remove the timing cover and locate the timing marks on the pump and engine. Align the pump's timing mark with the engine's timing mark, and then secure the pump in place. Finally, recheck the timing by rotating the engine and verifying that the marks remain aligned before reassembling any components.
Vw lt 35 diesel pump timing diagram 2002 five cylinder?
what year lt is the engine also is it 5or 6 cylinder
Can you have manual of maintenance of lancer car 93 model with diesel engine 4d68?
Mitsubishi lancer 4d68 engine diesel injection timing Mitsubishi lancer 4d68 engine diesel injection timing
What is the difference between inlet valve timing in a diesel engine and a petrol engine?
In diesel engine ,air alone without any fuel is drawn by the falling piston during inlet stroke. In petrol engine, the mixture of air and fuel is drawn in by the falling piston during inlet stroke. There is no difference in the act of actually setting the timing. Inlet valves open slightly before the piston reaches top dead centre, by how much depends on the manufacturers specifications.
Where is the Nissan laurel diesel RD28 timing marks?
where is the nissan laurel diesel rd28 engine timing mark
Where to set the fuel injector timing marks on a 6.5 diesel motor?
On a 6.5 diesel engine, the fuel injector timing marks should be aligned according to the specific timing procedure for that engine. Typically, this involves setting the engine to the TDC (top dead center) position of the compression stroke for the number one cylinder. The timing mark on the injection pump should align with the corresponding mark on the engine's timing cover or block. Always refer to the manufacturer's service manual for precise details and specifications.
What is the difference between low speed engine and high speed engine?
Bore to stroke ratio is a primary consideration. Valve timing (and in the case of a fuel injected engine, the injection timing) will also affect the engine's "power band" rpm range. For a given displacement, longer stroke = smaller bore dia, more torque and lower rpm. Diesels are more efficient if they have a lower rpm because the diesel fuel takes longer to burn. So the diesel engine will normally be designed for lower rpm.
How do you do the timing on Toyota landcruiser 60 series 2h diesel?
To set the timing on a Toyota Land Cruiser 60 Series with a 2H diesel engine, first, ensure the engine is at top dead center (TDC) on the compression stroke for cylinder one. Then, locate the timing marks on the crankshaft pulley and the timing cover. The timing should be adjusted to align with the specified mark for the 2H engine, typically around 8 degrees before TDC. Finally, secure any loose components and recheck the timing after running the engine to ensure accuracy.
