Torque spec
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Cross-Country
Joined: Nov 2005
Posts: 95
Likes: 0
From: Portsmouth, OH
Torque spec
I'm in the process of replacing my engine, and need the torque spec for the torque converter to flexplate. My haynes manual says 20-30 ft lbs, but that seems kinda low. My service manual didn't give the spec. Is this the correct torque?
This is an 89 F150 4x4 5.0/302 EFI AOD trans
Thanks
This is an 89 F150 4x4 5.0/302 EFI AOD trans
Thanks
Last edited by trgrhappy; Jul 15, 2006 at 11:02 PM. Reason: add information
Posting Guru
Joined: Mar 2006
Posts: 1,118
Likes: 0
From: Williamson, NY
I always wondered why they spec a torque range instead of torque value and a 14 ft-lb range seems quite large. I always torque to the upper number as well. Maybe it has something to do with torque wrench calibration and accuracy. Torque wrenches need to be calibrated every now and then and when you get them back from calibration the calibration sheet should give a test results showing for example; Torque Set to 100 ft-lbs and actual torque was 99 +/- 2 ft-lbs. Also a 250 ft-lb torque wrench will be less accurate as a rule say at 20 ft-lbs than a torque wrench rated for 100 ft-lbs. One thing I learned about "click" type torque wrenches is that you are supposed to set them back to their lowest torque setting when you store them and you are also supposed to protect them from temperature extremes as well. Well I've rambled on long enough :-)
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
Originally Posted by cujo8
One thing I learned about "click" type torque wrenches is that you are supposed to set them back to their lowest torque setting when you store them and you are also supposed to protect them from temperature extremes as well.
As for the torque range, that's always kind of annoyed me as well. Especially when it's such a large spread. Seems like it's more important to get them all equal within that range than to set them to a specific value.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
I torque to spec most parts, but never have on the torque converter nuts. They've got the lock ridges in the flange to keep them tight. I just tighten them with a 3/8 rachet and let em ride. Never had them come loose.
