Posted By: asesino
727 lock up - 10/25/11 12:23 AM
Hi, can someone tell me how many rpm begins to operate the lock up in a 727 transmission thanks 
727 lock up
Posted By: scratchnfotraction
Re: 727 lock up - 10/25/11 01:34 AM
should loc up around the 40-45 MPH
they run the loc up off the hydrolic pressure as it get up to speed.
they run the loc up off the hydrolic pressure as it get up to speed.
Posted By: asesino
Re: 727 lock up - 10/25/11 03:36 PM
Quote:thanks then operate trough mph. How many difference feels to a 727 non lock up? To 40-45 mph
should loc up around the 40-45 MPH
they run the loc up off the hydrolic pressure as it get up to speed.
Posted By: JohnRR
Re: 727 lock up - 10/25/11 04:10 PM
What year is the transmission/car you are asking about ?
Posted By: asesino
Re: 727 lock up - 10/25/11 06:43 PM
Quote:the transsmision was for a ram 90 and the car is a 71 charger with 318
What year is the transmission/car you are asking about ?
Posted By: John_Kunkel
Re: 727 lock up - 10/25/11 07:08 PM
The rpm drop at converter lockup will be about 200 rpm.
A '90 Ram with a 727 wouldn't have a lockup converter and a '71 wouldn't either, only '78 and later.
Posted By: asesino
Re: 727 lock up - 10/25/11 08:05 PM
Quote:well, thats what the seller told me, when i buy was droped in the floor
The rpm drop at converter lockup will be about 200 rpm.
A '90 Ram with a 727 wouldn't have a lockup converter and a '71 wouldn't either, only '78 and later.
Posted By: dogdays
Re: 727 lock up - 10/25/11 09:07 PM
Huh? Isn't a 1990 pickup later than 1978? Or did I miss something?
R.
R.
Posted By: larrymopar360
Re: 727 lock up - 10/25/11 10:30 PM
My two Dodge police cars with lock up have gone into lock up at about 35mph. My one civi Diplomat went in to lock up at 40-45mph.
Posted By: John_Kunkel
Re: 727 lock up - 10/25/11 11:21 PM
Quote:
Huh? Isn't a 1990 pickup later than 1978? Or did I miss something?
The '71 couldn't have lockup because it is pre-'78 but the '90 Ram with a 727 was one of those that didn't get lockup even though others of that year did.
Posted By: asesino
Re: 727 lock up - 10/25/11 11:58 PM
I know that 71 don't have lockup, i quit my old 727 because began to fail, and put a 727 lockup. We did some tricks and woks good
Posted By: Fury Fan
Re: 727 lock up - 10/26/11 09:11 PM
Quote:
My two Dodge police cars with lock up have gone into lock up at about 35mph. My one civi Diplomat went in to lock up at 40-45mph.
We had a civi Dippy (1980, 318-2, 2.2 axle) and it would go into LU at 35 mph no matter what the driving conditions were. Full throttle and uphill? It didn't care.
Posted By: asesino
Re: 727 lock up - 10/26/11 09:44 PM
Quote:Quote:
My two Dodge police cars with lock up have gone into lock up at about 35mph. My one civi Diplomat went in to lock up at 40-45mph.
We had a civi Dippy (1980, 318-2, 2.2 axle) and it would go into LU at 35 mph no matter what the driving conditions were. Full throttle and uphill? It didn't care.
Why do some work to 35 and others 40-45 mph?
Posted By: asesino
Re: 727 lock up - 10/26/11 10:01 PM
When i drive to 45 mph i start to hear some kind of buzzing, but the car is not shake , only hear, comes and goes.
will have something to do with the lockup?
to less speed, not heard ,always be at the same speed
will have something to do with the lockup?
to less speed, not heard ,always be at the same speed