Jump to content
The mkiv Supra Owners Club

Dumb question about autos


Schtuv
 Share

Recommended Posts

OK - I'm not the most technical/car person in the world, but I kinda get how things work, and I know I could probably look this up, but I've been wondering:

 

Automatic gearboxes use torque converters to drive a car forwards, and don't have a clutch installed. I guess this is why your have automatic-forwards-creep when you take your foot off the brake pedal.

 

So what exactly goes on when you have the car in neutral or park? Yeah - I get the bit where 'Park' locks the wheels, but do P and N have a clutchy thing somewhere in the line that disconnects the engine from the wheels? I assume that revving the car in P or N won't cook the transmission oil, like holding the foot brake and accellerator when in drive?

Link to comment
Share on other sites

There are something like five clutches in the non-turbo A340(e) box and seven in the turbo version. The clutches are used on gear changes and I suppose probably on engage/disengage of the engine too.

 

I would have thought your assumptions to be correct though.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.