1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Adjusting C6 Transmission

Thread Tools
 
Search this Thread
 
  #1  
Old 11-27-2011, 02:34 PM
bruno2's Avatar
bruno2
bruno2 is offline
Postmaster
Thread Starter
Join Date: Nov 2009
Location: Broken Arrow , OK
Posts: 4,575
Likes: 0
Received 3 Likes on 3 Posts
Adjusting C6 Transmission

I put a Transgo reprogramming kit in . In the directions they had a very specific procedure about adjusting the tension on the band. I cant for the life of me find the paperwork that explains it. Does anybody know what or how this is done?

The directions said something about being able to turn the driveshaft by hand in the forward rotation, but , not in the reverse. However, I dont have any idea if this in N or D or if the truck should be running . No idea and of course their tech support is closed right now.
<!-- / message -->
 
  #2  
Old 11-27-2011, 02:56 PM
cj06's Avatar
cj06
cj06 is offline
Posting Guru
Join Date: Feb 2010
Location: CASA GRANDE AZ
Posts: 2,007
Likes: 0
Received 1 Like on 1 Post
  #3  
Old 11-27-2011, 08:06 PM
bruno2's Avatar
bruno2
bruno2 is offline
Postmaster
Thread Starter
Join Date: Nov 2009
Location: Broken Arrow , OK
Posts: 4,575
Likes: 0
Received 3 Likes on 3 Posts
Thank you CJ!

Ok , I found it.

Most procedures for tightening up the intermediate band for the C6 goes like this:

Back off the retaining nut from the adjustment bolt. Then torque adjustment bolt to 120 inch pounds or 10 ftlbs. After that is done back the adjustment bolt off 1-1/2 turns. After that is complete hold the adjustment bolt with a wrench so that it doesnt move while tightening the retaining nut to 35 ftlbs.

However, The transgo reprogramming kit (67-#1 and #2) instructions go like this:

Snug adjustment screw with a short wrench. Notice that the output shaft or driveshaft will not turn backwards by hand with the screw tightened. (Wheels off the ground, trans in neutral and engine off).Loosen screw slowly until you can just turn the output shaft or driveshaft backwards by hand. Then loosen 1/4 turn more and tighten locknut.

I dont know what the difference is between the adjustment procedures, but , I have this reprogramming kit in my transmission. So I feel inclined to use this technique instead of the other standard procedure I listed above.
 
  #4  
Old 11-28-2011, 08:23 AM
Gary Lewis's Avatar
Gary Lewis
Gary Lewis is offline
Posting Legend
Join Date: Jul 2010
Location: Northeast, OK
Posts: 32,866
Likes: 0
Received 26 Likes on 24 Posts
Yes, I'd use the Transgo instructions since it is their kit. My guess, and this is only a guess, is that you arrive at about the same spot, but they assumed that few people have an inch-pound torque wrench.

Speaking of that, I'm considering buying something to calibrate torque wrenches with since I have several and they do not agree. For instance, my clicker-style inch-pound wrench reads low compared to my beam-style, which I had assumed is accurate because the beam shouldn't change. But, when I used it to torque down the pan bolts I felt like they went in too tightly. Given that I'm seriously considering getting the Eastwood device that goes between a ratchet and socket and gives a reading to within +/- 1%.

So, when you come to something like the C6 and it calls for an accurate torque to adjust, I'm not sure which wrench to use. And that's why I like the Transgo approach - no torque wrench needed.
 
  #5  
Old 11-28-2011, 10:20 AM
Stangrcr1's Avatar
Stangrcr1
Stangrcr1 is offline
Posting Guru
Join Date: Jul 2010
Location: Marysville, WA
Posts: 1,154
Likes: 0
Received 2 Likes on 2 Posts
Gary, check this link: How to perform your own torque wrench calibration testing - GL1800Riders

And Bruno, I would use the TransGo procedure. I have used many of their parts and they have not let me down.
 
  #6  
Old 11-28-2011, 10:39 AM
Gary Lewis's Avatar
Gary Lewis
Gary Lewis is offline
Posting Legend
Join Date: Jul 2010
Location: Northeast, OK
Posts: 32,866
Likes: 0
Received 26 Likes on 24 Posts
Stang - Thanks. I found the video equivalent of that page and came to the conclusion that it would be fiddly to do that test on all my wrenches at several points on their scale. (And, btw, while sometimes videos are better than written procedures, this is one case where the written is the best.)

I remembered seeing something at Eastwood that was intended for calibrating torque wrenches. But, I can't find it in their catalog so am looking at their Torque-Angle Adaptor: Electronic Torque Angle Adapter - Eastwood It is said to be +/- 1% from 15 to 150, and also does the angle trick which newer engines require.

But, that device won't calibrate the smaller wrenches so I may have to resort to the approach you sent. If I do go down the dangle-the-weight path I may just do it on all the wrenches. I think I have some bar bell weights that would be a good start, so am seriously thinking of doing that.

Thanks again.
 
  #7  
Old 11-28-2011, 04:16 PM
bruno2's Avatar
bruno2
bruno2 is offline
Postmaster
Thread Starter
Join Date: Nov 2009
Location: Broken Arrow , OK
Posts: 4,575
Likes: 0
Received 3 Likes on 3 Posts
The clicker style of torque wrenches have to be unloaded after use. If you are leaving the spring loaded up then it will not be accurate after a while. Take em down below zero for storage.
 
  #8  
Old 11-28-2011, 04:19 PM
Gary Lewis's Avatar
Gary Lewis
Gary Lewis is offline
Posting Legend
Join Date: Jul 2010
Location: Northeast, OK
Posts: 32,866
Likes: 0
Received 26 Likes on 24 Posts
Originally Posted by bruno2
The clicker style of torque wrenches have to be unloaded after use. If you are leaving the spring loaded up then it will not be accurate after a while. Take em down below zero for storage.
Actually, mine have a designated position to stop at instead of below zero. And, I've been religious in doing that.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Connecticut Calvin
1948 - 1956 F1, F100 & Larger F-Series Trucks
12
09-29-2015 08:47 AM
d-day
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
15
04-12-2014 05:16 PM
dcdave
Clutch, Transmission, Differential, Axle & Transfer Case
15
08-26-2007 11:27 PM
DrFord
Clutch, Transmission, Differential, Axle & Transfer Case
3
02-08-2003 08:15 AM
StrangeRanger
Clutch, Transmission, Differential, Axle & Transfer Case
2
01-01-2002 05:20 AM



Quick Reply: Adjusting C6 Transmission



All times are GMT -5. The time now is 05:43 PM.