cars
2006-12-22 16:58:58 · 13 answers · asked by ankushwaman 1 in Cars & Transportation ➔ Maintenance & Repairs
I own a transmission shop, and have messed with stuff like this for years. The answer is; you "don't" have to use a clutch for nothing more than taking off and stopping, but it can be at a cost if you don't do this right. It is called power shifting, and you can do this by keeping your foot on the floor and forcing the gears to change once you learn how. A modification is reccomended for your brass rings in the schronizers though. You need to remove every other one of the teeth on the brass synchro rings that you intend to power shift to. But yes you are very correct in stating you don't need a clutch for shifting gears. I've done it many times. You need to practice doing it like this until you get it down though. Run about 3/4 throttle in first gear, ease up on the accelerator just a little, and change the gear. You cannot hesitate or it will bang, and you may loose that gear. It is done easier with the higher gears to start with. Once you let off the accelerator pedal a little you will feel the shifter come out of that gear real easy. This is critical to do; While keeping pressure on the gear stick in the direction of the next gear you wish to go to, let off the accelerator, and when the stick moves "any", force it to the next gear, and back on the accelerator all in one motion. You can even down shift (once you get the hang of doing it) by reving the RPM's up while keeping pressure on the stick, and letting the accelerator off quickly. Move the stick to neutral, apply pressure on the stick to the next gear, rev the RPM's up again and let off quickly on the accelerator, and when the engine RPM's match that which is needed it will move to the gear, but don't forget, once it starts to go, "go" with it, and "do not" hesitate with it. You hesitate and you may drop a gear. It's like this: Rev, let off, shift to neutral, rev, let off, shift to next gear.
This isn't crazy, and has been around for a long time. I have seen many drag cars that the only time they use the clutch is to launch, and the rest is power shifting. They do the modifications to the transmission to do this, but it is a more positive way of shifting, and you never miss a gears. It does work, and I have done it for years. It freaks people out when I show them I'm not using the clutch to change gears, and they are just amazed.
Glad I could help you. Good Luck!!!
2006-12-22 18:04:14 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Because gears in modern cars are "synchro-mesh" gears, which means they have rotating components to allow the gears to mesh with each other. Attempting to put these gears together under power will cause the gears to grind each other apart. Older transmissions required you to match the engine speed to how fast it would be running in the next higher or lower gear. For example in a large truck, you only need the clutch to start and then can shift without it, by just co-ordinating engine and transmission speed with the accelerator pedal. The "synchro" gears do away with this hard to learn skill, but, require using the clutch for every shift, which for most people is a small price to pay.
2006-12-23 01:11:04 · answer #2 · answered by Jim N 4 · 0⤊ 1⤋
The reason for using the clutch when shifting is to save the synchros in your transmission.
I have owned a couple of cars with hydraulic clutches that had the clutch go out and had to drive them without the clutch in a pinch. However it wears out the syncros faster and makes it more difficult to shift even when you do use the clutch.
Also, the it is nearly impossible to start out from a standstill without either using the clutch or turning off the engine and "starting" the car in gear to get going.
Since replacing the synchros in the tranny is expensive, it makes sense to just use the clutch and avoid the wear and tear.
2006-12-23 01:36:25 · answer #3 · answered by bogey 4 · 0⤊ 1⤋
The clutch disengages the engine from the transmission... it allows you to shift the gear without interfering with the car's motion... letting out the clutch after the gear has shifted lets you resume accelerating in the new gear.
2006-12-23 01:09:12 · answer #4 · answered by Jeebz88 3 · 0⤊ 1⤋
clutch mechanism is used to temporarily disconnect the power from the engine to the gear box.
When you want to shigt the gear, you neeed to use the clutch so that you temporarily cut the power from the engine, so that when you shift the gears, they shift easily. because when the clutch is not used, the gear box would be fully powered and when you shift the gear, they would be subjected to more wear and tear, which would lead to damage of the gear teeth soon. moreover there would be sudden change in the power supplied to the wheels which is very difficult to drive and handle.
So you use the clutch, for changing the gear in order to safeguard the gear box and for easy driving during gear shifts.
Hope i have made it clear to you.
2006-12-23 01:13:45 · answer #5 · answered by vEnKat 3 · 1⤊ 1⤋
we dont operate gears using clutches but clutches are just used to engage and disengage the output shaft of engine and the input shaft of gear box....clutch is just a link between engine and gearbox of a vehicle.
but since we need variations in speed so we need to shift gears however if we do so without disengaging the two shafts(i.e by pressing clutch) the shaft may get damaged and their may be lot of noise also engine will stop due to jerk....
2006-12-23 12:17:51 · answer #6 · answered by diksha_winsome 1 · 1⤊ 1⤋
Most people just do not understand standard transmissions. I have driven standards for years, old,new,truck, car, e.c.t.. never trashed one yet for this reason. And I rarely use a clutch other than for starting movement, or ceasing movement. I have rebuilt, and/or replaced quite a number for people who do not know what they are doing with them, clutches too, from people who cannot get it out of their head to get their foot off the clutch pedal while driving down the road.
2006-12-24 06:16:13 · answer #7 · answered by Burts chevy 3 · 0⤊ 1⤋
Its like this, the transmission in your car is made up of gears, if you switch from one gear to another without disengaging the drive gear you will tear your transmission appart, its would be like setting up two marry-go-rounds (I hate those things) next to one another, spinning one of them really fast and stepping off one to the other without stopping it, your probably going to miss, and if you don't your not going to feel to happy about hitting a pole.
2006-12-23 01:10:38 · answer #8 · answered by Mark G 7 · 0⤊ 1⤋
anser itself is in the question because it is for changing gears otherwise the gear will not move and make krrrrrrrrrrrrrrrrrrrrrrrrrrrr noise
2006-12-24 01:15:16 · answer #9 · answered by vijay g 1 · 0⤊ 1⤋
why not? well you could spend extra money and get that thing where you just press a button to switch gears.. i think i saw it in a fararri.
2006-12-23 01:07:59 · answer #10 · answered by Dont get Infected 7 · 1⤊ 1⤋