Internal Combustion Engine

Engine Technology

https://docs.google.com/presentation/d/128aoq90bhdpaq0ara52fueNDG7lKKvQIdX8gjhyktQA/edit

Electrical

Electrical Questions

What two types of battery are used in automotive? -Maintenance, and maintenance free how many protons and electrons are? -29 Of each What is a circuit? -Something with a current flowing + to - What does EMF stand for? -Electro Motive Force What is resistance and how is it measured? -Factors causing a current to drop. It is measured in ohms What is voltage drop? -When the voltage drops through a resistor When electrons travel + to - we call this? -Conventional Current Flow When electrons travel - to + we call this? -Electron current Flow What is electromotive force? -Voltage generate from a battery or magnetic field What is a conductor? -A metal with loss electrons which allows current to flow through it easily In a electrical circuit what are the three main numbers? -30,31,15 What is the symbol for a battery? -A 3 cell battery

https://docs.google.com/spreadsheet/ccc?key=0AkuGM_CsIrv2dEVrTmVUNVB4TjRYMy1WZ0VUamMwV3c

Quick Engine Rebuild

Vehicle Tech pt.2

Vechicle Tech part 1

Tyres part 1

1. What is the purpose of the wheel? -To carry the mass of the vehicle, and to handle the forces subjected to the car. 2. Name the material that the wheels can be made off? -Steel or alloy 3. Describe the term offset and why is it important? The distance between the wheel centre line and the car hub. It is important as every vehicle needs the right offset to alloy room for the brakes, hub etc. 4. In the making off the wheel what is the purpose of the safety ridges? -Prevent the tyre moving into the well if a blow out occurs. 5. What angle is the bead seats on the wheel? -15 degrees 6. On the steering hub what is the wheel studs made off and why are they made of this? -Heat treated alloy steel, to handle the pressure put onto the hub. 7. Describe the function of the tire? -Provides a cushion between the wheel/car and the road. 8. When the tire are being made what is the angle of the cords on the cross ply? -30-38 degrees 9. What is the the difference in-construction between cross ply and radial? -Cross ply tyres have a latticed, criss-cross structure with alternate crossing layers. -Radial tyres have cord loops running radially from side to side, with 2 or more layers of crossing ply. 10.What happens to the tire if it is under-inflated and over-inflated? -Under inflated tyres will cause wear to the sides of the tyre, as it will flex too much. Over inflated tyres will cause wear to the centre of the tyre. 11. What are the two ways the tire valve is fixed? -With a nut and washer, or pressed firmly in place. 12. Why should the tire be balanced? -To maximise tread life, and to stop wheel bobble. 13. What is the min depth on a tire? -1.5MM

Engineering Technology

My Car

Spent last 3 days in the workshop. First had to remove broken exhaust manifold gasket, which then broke more and droped a peice into the turbo. Then had to take off air intake, manifold, exhaust and turbo. Removed the peice, bolted back together and have now replace the exhaust pipe from the cat back. Big thanks to Ryan, Mitch, Phil, and all others who  helped out, much appreciated :)

How to install a Monza SSQV Blow Off Valve on a EP82 Toyota Starlet!

1.This is what the factory bypass valve setup looks like:

2. Remove rocker cover hose and vacuum hose, and unclip the boost line:

 3. Unbolt the bypass valve, and remove:

4. This is what you should have removed:

5.This is what you will need, some 4mm vacuum line, hose clamps, a screwdriver, Monza SSQV BOV with 19mm adaptor and a 10mm spanner(to adjust BOV spring).

 6. A Blanking plug (19mm) is needed to block off the factory air re-circulation:

7. Insert the blanking plug into the factory air re-circulation pipe, where the factory bypass valve was connected:

8. Use a 12mm mini air breather to replace the rocker cover return pipe, to help the rocker cover breathe:

9. Insert the BOV adaptor into the boost line, aiming the BOV towards the bonnet air scope, secure with a screw type hose clamp (18-32mm):

10. Using the 4mm vacuum hose, connect the bov vacuum pipe to the cars factory vacuum pipe:

 11. Your new BOV is now installed, and ready to go for a boost!

By James Drake

How a rotary(Wankel) engine works

Noice

Towerade

Bottles...

Health and Safety part 1

Health and Safety exercise, you need to read the booklet and fill in the missing words

The Law


Both the employer, Unitec Institute of Technology and its students have statutory obligations under the health and safety in employment act 1992 and all its amendments.

Employer Duties Include:


To take all practicable steps to:
Provide a safe working enviroment
Provide procedures for dealing with emergencies
Provide facilities for staff that include toilets and rest rooms, first aid facilities.
Employees receive appropriate training in all matters
Students Duties include


Taking responsibility for your own safety and health at work.
Ensuring that your action or inaction does not harm others.
Reporting all injuries or near hits to your supervisor as soon as possible after the event.

Hazards


To help reduce the health and safety risks in our workplace we need you to report any hazards that you may identify that have the potential to cause injury or serous harm
Report the problem to your supervisor immediatley so that the risk can be -analysed and preventative action taken
Who is your Health and safety Rob Humphreys

Main Industry