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to get more aire flow though the block.
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∙ 12y ago
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What is difference between valve and port?
valves are use in four stroke engine, and ports are use in two stroke engine.
How do you tell if a 49cc engines is a 2 stroke or a 4 stroke for a pocket rocket?
It should be a 2 stroke .Ans. 2A 2 stroke engine has a transfer port from the bottom of the cylinder to about half-way up it; it has no valves.A 4 stroke engine has no transfer port, but has inlet and exhaust valves, with their associated valve gear.
Why in two stroke engine at the place of valve there is valve?
In a typical two stroke (petrol) engine, the valves are replaced by ports in the cylinder wall, and closed / unclosed by the motion of the piston. Piston rising, vacuum under draws (fuel) mix into the crankcase through the carburettor. Piston falling, inlet port closes, pressure forces mix up through transfer ports into combustion chamber. Rises and fires at TDC, then falls to uncover exhaust port.
What allows burned gasses to leave the cylinders through tubelike chambers into the exhaust pipe?
It depends whether you are talking about a 2-stroke or 4-stroke engine. A 2-stroke is typically rotary valved where a port opens near bottom dead center of the piston stroke. This port is often in the cylinder wall and this is where the exhaust exits and where the new air/fuel mixture enters. A 4-Stroke has a camshaft that operates intake and exhaust valves. after the combustion stroke of the piston the cam actuates the exhaust valve. As the valve is open the piston comes up pushing the exhaust gas into the exhaust manifold, sometimes called a header or header pipe.
Which valve is the intake valve on number 1 cylinder for a 460 Ford engine?
the valve on intake port side and exhause valve on exhaust manifold side.
How do you polish an exhaust port on a 4 stroke engine?
http://www.angelfire.com/space/neon/porting.html
What is a 305?
A Chevrolet V8 engine with 3.736" bore and 3.48" stroke and tuned port injection.
In a 2 stroke engine what carries the valves?
The standard, simple type of two-stroke gasoline engine does not have valves in the sense that a four-stroke engine has them. The two-stroke principle remains the same but they may be achieved by various mechanical means. A main problem with simple two-stroke engines is that they are not very effective in getting rid of the burnt exhaust gases. The difference between models is in how the combustible gas is introduced and also on scavenging or exchanging the exhaust gas for a fresh blend of gasoline and air, finally there are different exhaust methods. The piston-port method is the simplest in small engines, but there are other designs such as the reed and inlet rotary valve, the stepped piston engine, the power valve system and direct injection.
What is a 305 tpi?
A Chevrolet V8 engine with 3.736" bore and 3.48" stroke and tuned port injection.
How do i install a PCV valve on a 2004 Ford Mustang V6 3.8L?
On the passenger side valve cover, under the engine intake. A tube connects the PCV valve to a port on the upper intake plenum which sits on top the engine.
Where is the evap purge valve located on a S-10 Chevrolet pickup 2wd?
Up on top the engine, passenger side assuming the engine is a 4.3 V-6. The year and engine info would help. You can also look for the small green plastic cap within the engine bay. The valve under the cap is a test port for the EVAP system. Follow the line to the engine from the test port. It will lead you to the EVAP purge valve.
2005 dodge caravan PCV valve location?
Look for a large rubber tube attached to the manifold port located on the top left side (passenger) rising up and and then curving down to the rear valve cover pcv port. It is a squeeze, but work the hose off the pcv port, and "voila" the pcv valve is INSIDE the port. Pull it out with its attached grommet. Do not attempt to clean. Replace, only, and save the receipt for the engine warranty. This engine can burn oil if it is a valve seal or manifold plenum proplem.
