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Tuesday, March 15, 2011

Introduction.

This is what we did in class and how we took apart the transmission and how you check every componet for any faults, we found out how every gear is engaged and how they work, for example when a small gear on a large gear. wil mean more torque, eg: 1st gear but a large gear on a small gear. will mean more speed with less torque, eg: 4th gear because then the engine will jus need to keep it at one speed, as for when you start off in the 1st gear then the engine will need more torque to get the car rolling and all that weight moving. we also learned the range of bearings thier are and springs, each one of them is different and different how perform, we learnt different cuts on gears like straight cut gear teeths and herringbone and whole other heap,

Monday, March 14, 2011

Today we learnt how a manual gearbox works and why you would open a transmission.It'l most probly be because there is something wrong with the gears or clutch.


this is gone be the transmission we'r check for any damage or faults with the gears,
                                            
This is a image of the transmission after we took the back cover off which covers the fifth gear.
this after we took the gear shifter off, and we used a screw driver to ingage to gears to lock the fifth gear.The bolt holding the fifth was realy hard to get off.


this is after we took the shift fork off, which is used to engage the gears.

   this is after we got the shift fork out, now we were ready to get the fifth gear off. for that we needed a  spical tool called a gear puller.



this is the tool we used to get off the fifth gear, you had to be realy patient with it so you dont end up damaging or breaking the fifth gear,

this your gear input and output shafts,i'm holding the input shaft which has your 3rd and 4rd driver gears and has 1st and 2nd driven gears.The output shaft has the 1st and 2nd driver gears which mesh in with the 1st and 2nd driven gears on the input shaft, you use a fueler gauge and messure the gap between the driver gears on the output and input shafts.


this is when we finshed checking the transmission for any damage or faults and we assmbled it back together and we were finsh after we have checked and made sure all the part are put back correctly and made sure we can stil select gears,



Thursday, March 10, 2011

transmission and driveline.

This is a image of how the engine is connected to the rear wheel, in a rear wheel driven car. The input shaft is between the engine and the transmission. The output shaft is attached to the drive shaft, which then is connected to tha differential which then turns the wheel.the transmission converts torque made my the engine and turns into speed.for example when your in first gear you have more torque but less speed because you have a small gear turning a large gear, but when your in the top gear for instant 5th gear you have a large input gear on a small output gear. which means less torque and more speed.