Moparchat - Home of MOPAR enthusiasts worldwide!



Go Back   Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > Dakota Truck Forum

Click here to search for Mopar cars and parts for sale.


Reply
 
Thread Tools Display Modes
  #1  
Old 12-01-2001, 12:45 AM
jamepc jamepc is offline
Inactive User
 
Join Date: Jan 2001
Location: Palm Coast, FL
Posts: 238
Default lock up / non lock up stall converter

so.. what's the differance?
Reply With Quote
  #2  
Old 12-01-2001, 10:05 AM
tobs440's Avatar
tobs440 tobs440 is offline
Inactive User
 
Join Date: Nov 2000
Location: Palm Bay, Fl
Age: 45
Posts: 2,518
Default

ok you know when you are driving fast (on the track)....and you go into overdrive then you get on last little rpm drop... that is the converter going into lock-up. if you tap the breaks it comes out and the rpms rev up again...it has to do with the overdrive, my deffinition isnt very ughhhh technical as most would say but that is the jist of it.. you thinking of getting one?? i have the 166k sitting hre right next to me screaming put me in put me in....
Reply With Quote
  #3  
Old 12-01-2001, 10:19 AM
HankL HankL is offline
Inactive User
 
Join Date: Jul 2000
Location: Durham, NC, USA
Posts: 1,910
Default

The non-lockup torque converter is like the old style used in muscle cars of the 1960s and 1970s. It does not have a clutch built inside of it.

The lockup clutch was added in the late 1980s to improve gasoline mileage.

The non-lockup torque converter will probably be much more durable if you hot rod your truck, or increase the HP of the engine greatly - like with a supercharger.

The penalty in MPG is probably about 10-15%.
Reply With Quote
  #4  
Old 12-01-2001, 10:55 AM
jamepc jamepc is offline
Inactive User
 
Join Date: Jan 2001
Location: Palm Coast, FL
Posts: 238
Default

Hey - Thanks for the info.
When I raise the rear off the ground the wheels spin @ about 5 mph in neutral. Could this be pre-mature lock up? I have to rebuild the tranny anyways and it is a new MP converter in there now, but I was wondering if there was anything speficic I should look for while I'm in there. My other guess is that it's the rear clutch sticking. Any other ideas?

Thanks
Reply With Quote
  #5  
Old 12-03-2001, 01:27 AM
Walkercolt Walkercolt is offline
Inactive User
 
Join Date: Apr 2001
Location: Tulsa,OK
Posts: 4,288
Default

jamepc, that's about normal. With NO load on the driveline, the engine idling can turn the wheels. Good example is motorcycles. In NEUTRAL, with the clutch PULLED IN, most bikes will turn the rear wheel at idle. You can take a wrench and put it against the tire, and stop it with almost no effort. Just the "sympathetic vibrations" of the engine are enough to rotate the clutch, the transmission parts and move the chain, thus, the rear wheel. Now if your truck crawls at 10 MPH at idle on level ground, you've got a problem.
Reply With Quote
  #6  
Old 12-04-2001, 12:51 AM
disavowed disavowed is offline
Inactive User
 
Join Date: Mar 2001
Location: lumberton,texas
Age: 43
Posts: 194
Default

the way i under stand it is it is when your converter goes to a 1 to 1 ratio.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
High stall lock up converter... c318cuin Drag Racing Forum 4 12-11-2005 05:32 PM
Lock Up Converter URDUSTED Diesel & Turbo Diesel Chat 2 03-23-2003 10:50 AM
converter lock up monsta34 Dakota Truck Forum 0 02-20-2001 10:45 PM
Anyone ever heard of 3.5 turns lock to lock Manual Steering? Joecuda Performance Talk 4 06-26-2000 07:45 AM
A998 High stall lock up Hemi Mike Performance Talk 1 11-28-1999 08:08 AM




All times are GMT -4. The time now is 10:36 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
. . . . .