Friday, 29 March 2019

29/03/2019 taking off covers

Today we took of another two parts of the engine we took off the oil transfer cover which in were the oil travels around the engine. We also took of the valve spring cover. There was also an oil leak. We spent some time cleaning the engine and making sure we got some of the oil out of the hole. (My phone was not working so photos did upload.)

Wednesday, 27 March 2019

27/03/2019 updating manual

Today we spent most of the time working on the Manual. we added how to take off the cylinder head and the fly wheel. And on the engine disassembly process we talked about snapping one of the screws. We also went to the woodwork room and measured the screws so we could explain what size spanner or ratchet head to use. On Friday we are going to continue working on the engine.


Friday, 22 March 2019

22/03/2019

Today we spent some time cleaning grime off the engine. It was very dirty and we used screwdrivers to scrape it off. We also took of the cylinder head. While we were taking it off one of the screws was very tight and was refusing to move. But after a few attempts we got it out but it had snapped clean in half. We also spent some time cleaning the cylinder head. We also took the head gasket off and spent some time cleaning them. We could now see the piston and combustion chamber. We also cleaned some oil out of the combustion chamber and cleaned the piston. We also took the flywheel off. We took the big bolt holding it off then we used two hammers and hit the flywheel off. Next week we are going to film the four strokes and valves on our engine and upload them.



Wednesday, 20 March 2019

20/03/2019

Today we spent the afternoon catching up and making sure that all our paperwork was up to date. We spent some time on the engine disassembly manual and made sure that we had instructions on how to remove each part of the engine we had taken off. We also added links for our work onto workspace. We looked through the photos we took and started to explain how to remove the carburetor. We learnt a new part of the engine the governor arm. it is the rod that is attached by a spring to the carburetor.

Image result for governor arm

Friday, 15 March 2019

15/03/2019 Creating the engine disassembly manual

Today we spent most of the time doing paperwork. We created our engine disassembly slideshow. On it we explain how to disassemble the different parts of the engine. We explain where the screws are placed and what size  spanner or ratchet head you need to undo. We also explained where every thing was placed. To measure the screws we used the Vernier caliber. it is a tool that gives the most exact measurement of a screw/ bolt in millimetres. We also started cleaning the engine in block three but as we cleaned it some oil spilled out of the engine. We had to spent the last part of the time in the woodwork room cleaning up the oil and attempting to get rid of the majority of it. We also used a screw driver to scrape some of the dirt of the engine. We spent most of the time in the woodwork room taking photos and measuring the screws and writing the manual.



Wednesday, 13 March 2019

13/03/2019 Working on the engine disassembly process

Today we did not go into the workshop because it is Wednesday and we only have one block. So we spent some time working on the engine disassembly process. We started to upload photos of the parts that we had taken of the engine. But my phone was not working and the emails were not going through, so we had to take Luca's phone and go to the woodwork room and re-take some of the photos. Also while we were in the woodwork room we checked all the zip lock bags and made sure that we had got the names of the parts right. When we had the photos we uploaded them to the slideshow. We also went through and made sure all of our plans and reflections are up to date. On Friday we will continue to work on the engine. 

Friday, 8 March 2019

8/03/2019 taking of the exhaust and carburator

Today we took of the carburetor, exhaust, intake pipe and spark coil it was very good progress into disassembling the engine. We also learnt more about the engine and how it worked. When we took the exhaust of it had some water/oil inside it, so we emptied that. When we took the intake tube out we could see some parts inside the engine.




Friday, 1 March 2019

Reflection 1/03/2019 looking at alternator and learning the four strokes.

Today Luca brought in an alternator for us to look at and maybe take apart. but the alternator had been sitting for 20 years and we were unable to start taking it apart. We also looked at a four stroke engine that had been opened so you could look at it. You could see the piston go up and down and the valves open and close. We you could also see the flywheel and how a spark plug would get it's electricity. We also learnt the four strokes of a four stroke engine. The intake stroke, the compression stroke, the power stroke and the exhaust stroke. We also learnt how a spark plug gets it's electricity. We also looked at a two stroke engine for interest. Luca also accidentally took a screw out of the pulley starter and a coil fell out so we had to spend some time trying to get that back in it. I also filmed while Luca span the crankshaft to show how the piston moved up and down. I also filmed the valves going up and down. Next week we are going to continue working on the push lawn mower engine.

27/02/2019 starting to take the engine apart

Today we started to take the engine apart we removed the air filter cover. We removed the top cover and dip stick. We learned how to use the ratchet and took photos of the engine. When we removed the oil cap we found that the tank was full of oil. So we worked around school and found a container to pour the oil into. we emptied the oil and since it was a Wednesday we only had one block.