Engineering Report
Engine Dismantle
And Rebuild
Travis Wight
TEN053B
Mr. Mulligan
Contents
Introduction p1
What is a Two Stroke Engine? P2
How a Two-Stroke Engine Works
Power Stroke p3 Fuel Intake p4
Compression stroke p5
Dismantling the Engine p
Engine Assessment p
Engine Rebuild p
Appendices
Introduction
The task at hand was to find a medium sized internal combustion engine. With this engine we had to dismantle it recording all the steps taken to pull it down. After the engine had been taken apart, all the functions of the engine had to be observed and recorded. After observing and recording all the information, it was then required to make any minor
…show more content…
This was achieved by un-doing one primary nut, which was attached from the shaft of the engine to the cutting deck of the mower. There was four smaller nuts the attached the engine to actual mower frame. These five bolts were undone with a medium-size shifter. The large bolt had to be "cracked" because it was on tight and tapping it with a hammer causes the nut to crack and let go of the bolt.
Upon removing the engine from the frame of the mower, the casing over the engine was removed with a small shifter by undoing six small bolts around the engine.
The next component of the engine that was taken off was the carburetor, which was attached to the side of the cylinder. It was secured onto the intake port by a tightening mechanism, which worked by tightening two washer-like fixtures around the intake port with a screw. After taking it off all the dirt had been removed from the surface of the carburetor
The head of the cylinder was taken off first. This was achieved after undoing four small bolts or the top of the head. The vacuum advance system was disconnected from the carburetor to allow the removal of the head. See Fig 6
The next component that was removed was the barrel or cylinder. It slid off the four bolts that held the head of the cylinder off. After the barrel had been taken off, the piston was easily accessible. See Fig 7
The plate with cooling fins on it had to be taken off and for that to be removed a large nut had to be cracked
To load the ejection port, turn the gun to its side keeping it against your hip so that the port is now upwards. On the ejection port, there is a small little pin that if you pull backwards, slides open. Grab that pin and slide it back towards your stomach. If done properly, the port will now be open and appear like this.
b. ...adds more fuel to the reheat section of th eengine to produce more power.
tightened, it's time to add the new oil. Unscrew the oil cap on top of the engine and with the
The outer racer of the bearing is fastening into the boss. The whole subassembly is then attached with the steering arm, stub axle by means of welded joints and the plate welded to the chassis by means of Rod end bearing(2). The steering arm is joined with the steering rod by swivel joint as shown in the fig1.
Step 3: Place the oil drain pan under the plug and loosen the plug with a socket wrench. Remember: turn counterclockwise to remove bolts.
Rotated the right hand side of the throttle gently and slowly removed the feet to the foot rest.
You will have to turn the lug nuts counter clockwise to loosen them. Do not remove the lug nuts all the way off the threaded shaft. Next, to get the wheel off the car, you have to raise the corner of the car where the flat is located.
The power system consists of a four-stroke engine, a carburettor to transform incoming fuel into steam, a obstruct to control the air-fuel ratio, transmission, and drum brakes. A cylindrical piston, made of aluminium alloy as most people
Once inverted, built-up gas was released by turning the stopcock to its opened and closed positions. This was repeated for about four times in one minute intervals. Then the layers were allowed to settle until a separation between liquids could be observed. Due to the low density of the product, the top layer was to be extracted. The bottom layer was carefully and slowly extracted out of the separatory funnel.
the stopcock to release the pressure. Close the stopcock, shake the funnel several times, and again release the pressure through the stopcock (see Technique 12, Section
Turn the wrench on the finish of the auger while holding the metal tubing in one hand to broaden the link into your toilet's pipe. Handing the wrench over the other way will withdraw the auger.
5. Look under the car to find your oil reservoir, use the socket wrench to remove the nut. Before you do this, you should have an oil pan ready to keep the dirty oil. After you unscrew the nut, you should see a stream of motor oil draining out of the oil tank. Allow this process to occur for 5-10 minutes and make sure the oil is going into the oil pan. This is the most annoying part of the entire procedure because sometimes things can get messy. Also look for the oil filter and twist in open. We are going to replace it with a new one in our next step.
in grille-work. If I were Moira, I’d know how to take it apart, reduce it to its cutting
The removal of a internally damaged engine from your personal car or truck may seem like a daunting task, but in reality, with the proper tools, equipment, and work space, it can be done within a 6 hour time frame. Having the proper space to pull the motor is the number one key to the engine removal. There will be components of the motor that will have to be disassembled at certain periods during the removal process and if there is no space to lay the parts, then where are you going to put the motor? The proper tools and equipment is another major concern of an engine removal. Not all the bolts and nuts that hold the motor and its components together are not always the same size, and sometimes certain bolts and nuts are in tight spaces so only certain sized ratchets or wrenches will fit to loosen them. Also, there are specialty tools for loosening
The piston then travels down pulling in fresh air, (third stroke), after the piston bottoms again it travels up compressing the fresh air, (fourth stroke). The fuel is then injected and one cycle is completed in 720 degrees or two full rotations of the crankshaft.