Quote:
Originally Posted by saand
Thanks all for your replies, looks like a resounding "no that wont work" however it seems like from the responses it wont kill my transmission if i try it out once.
I had also expected the drive wheels to not be able to back power the engine therefore making bump starting impossible however some time ago i once tried turning off the engine while traveling at a good speed and the engine kept rotating, i turned the key back into the on position and it fired up again. So it makes me wonder.
I think ill have to try this out just once to see if its possible now that i know it wont kill my transmission straight off.
I also like the idea of a pump powered off the output shaft, may be a bit too much effort for little gain though, will have to think about this if my bump starting attempt doesn't work
Shadetree regarding the manumatic conversion, i have written up the method in the wiki have a look here (even has some pretty pictures)
Manumatic - EcoModder
regarding the age old auto transmission lubrication debate, im not getting into this one but i will say I am happy to risk my transmission to go up in smoke over time as long as i have fun doing it. My car is on the way out anyway so im really at the point of seeing what crazy stuff i can do even if there is a bit of a risk of damage. |
A couple things could have happened, regarding the engine starting back up, but I can't say for sure without more information.
1. Vehicle speed = engine speed. If you're going fast enough, and only turned the key off for a second, it may not have stopped rotating completely before you turned the key back on, and thus would fire back up.
2. Locked torque converter. On some cars, if the converter is locked, and you shut the engine off, it doesn't default to unlocked, it just stays that way. This would cause the engine to continue to spin, because w/ the torque converter locked, the transmission can drive the engine. The clutch in the torque converter, however, is not strong enough to instantly transfer transmission load into the engine to start it, so using that method is strongly advised against.
For #2 to happen, a series of events would have to be fulfilled:
1. You can't let off the gas, as this signals the torque converter to unlock (or touch brakes, in some cases).
2. You turned the key off, but not back on, as this would reset the TCM and cause an unlock command to be sent.
3. You were traveling in top gear, or any gear in which the torque converter could lock.