Calling Pete K for 4l60E Tech Assisitance
Thread Starter
Drifting
Joined: Nov 1999
Posts: 1,502
Likes: 12
From: Yorktown Heights NY
So Pete, she shifts fine and doesn't overheat...drove home in bumper to bumper traffic cause of the storms tonight didn't go over 203F. 
One question...think its break-in related.
Only have 100 miles on it now and noticed when converter is in lockup and I push it to just before it downshifts the TCC clutch (new refurbished converter) shudders a little just before the downshift. If I nail the throttle, this doesn't happen, it just dowshifts and kicks ***
I did notice that the above situation has gotten a little smoother over time. Is this a normal break in procedure for the TCC clutch or is the TCC slipping a little under high torque load ?
One question...think its break-in related.
Only have 100 miles on it now and noticed when converter is in lockup and I push it to just before it downshifts the TCC clutch (new refurbished converter) shudders a little just before the downshift. If I nail the throttle, this doesn't happen, it just dowshifts and kicks ***
I did notice that the above situation has gotten a little smoother over time. Is this a normal break in procedure for the TCC clutch or is the TCC slipping a little under high torque load ?
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
So Pete, she shifts fine and doesn't overheat...drove home in bumper to bumper traffic cause of the storms tonight didn't go over 203F.
One question...think its break-in related.
Only have 100 miles on it now and noticed when converter is in lockup and I push it to just before it downshifts the TCC clutch (new refurbished converter) shudders a little just before the downshift. If I nail the throttle, this doesn't happen, it just dowshifts and kicks ***
I did notice that the above situation has gotten a little smoother over time. Is this a normal break in procedure for the TCC clutch or is the TCC slipping a little under high torque load ?
One question...think its break-in related.
Only have 100 miles on it now and noticed when converter is in lockup and I push it to just before it downshifts the TCC clutch (new refurbished converter) shudders a little just before the downshift. If I nail the throttle, this doesn't happen, it just dowshifts and kicks ***
I did notice that the above situation has gotten a little smoother over time. Is this a normal break in procedure for the TCC clutch or is the TCC slipping a little under high torque load ?
I presume protorque converters use the same(or similar) lining.
I would not worry about it.
Thread Starter
Drifting
Joined: Nov 1999
Posts: 1,502
Likes: 12
From: Yorktown Heights NY
Thanks Pete.
BTW, it's confirmed the excessive pump rotor & vane clearance was my problem, as I got up to 213F today in drop dead stop and go traffic and everything was fine. Forward clutch pack didn't realease as it had in the past.
Think you're right, as it seems like it only shudders just a little above 65mph when I push it hard just prior to the TCC clutch disengaging. Doesn't happen below that speed as I belive it downshifts to third at that lower speed. Also, doesn't happen when leaning on it at lower TCC engaement speeds.
BTW, it's confirmed the excessive pump rotor & vane clearance was my problem, as I got up to 213F today in drop dead stop and go traffic and everything was fine. Forward clutch pack didn't realease as it had in the past.
Think you're right, as it seems like it only shudders just a little above 65mph when I push it hard just prior to the TCC clutch disengaging. Doesn't happen below that speed as I belive it downshifts to third at that lower speed. Also, doesn't happen when leaning on it at lower TCC engaement speeds.
