Nissan 370Z Forum  

Service Manual, Diff/Tranny bolt torque

Can anyone help me decipher what the service manual lists the recommended torque to be for the the tranny and rear diff filler and drain lugs? For the tranny, it

Go Back   Nissan 370Z Forum > General > Nissan 370Z General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 08-07-2009, 09:41 PM   #1 (permalink)
A True Z Fanatic
 
spearfish25's Avatar
 
Join Date: Mar 2009
Location: Naples, FL
Posts: 4,117
Drives: to work
Rep Power: 1851
spearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond repute
Send a message via AIM to spearfish25
Default Service Manual, Diff/Tranny bolt torque

Can anyone help me decipher what the service manual lists the recommended torque to be for the the tranny and rear diff filler and drain lugs?

For the tranny, it says 34.5(3.5, 25) and for the rear diff 35(3.6, 26). No where does it list units for any of these numbers. I just want to torque them correctly for my oil changes on Sunday. Which one is the value in ft-lbs...I'm guessing the first...

Thanks
Attached Images
File Type: jpg Picture-1.jpg (144.5 KB, 61 views)
spearfish25 is offline   Reply With Quote
Old 08-07-2009, 11:10 PM   #2 (permalink)
Base Member
 
Join Date: Jun 2009
Location: CA
Posts: 244
Drives: PG 370Z Sport 6MT
Rep Power: 11
davidyan will become famous soon enough
Default

Quote:
Originally Posted by spearfish25 View Post
Can anyone help me decipher what the service manual lists the recommended torque to be for the the tranny and rear diff filler and drain lugs?

For the tranny, it says 34.5(3.5, 25) and for the rear diff 35(3.6, 26). No where does it list units for any of these numbers. I just want to torque them correctly for my oil changes on Sunday. Which one is the value in ft-lbs...I'm guessing the first...

Thanks
It doesn't need to be that precise to the foot pound. 1) hand tighten it; 2) using a socket wrench make it snug so that there is solid resistance without pulling too hard. DO NOT overtorque this bolt. If you strip the threads, it could be a very expensive fix. Have you ever changed your own oil? The bolt should be about as tight as that or just a little more. Make sure you put in a new washer.

Also, I just noticed on the lower part of the diagram you posted, the torque reference is right there. Click on it. However, the number you posted (34 - 35) is probably in NM given how Nissan quotes their torque specs in which case would convert to about 25 ft lbs, the last # before the last bracket.

Last edited by davidyan; 08-07-2009 at 11:18 PM.
davidyan is offline   Reply With Quote
Old 08-07-2009, 11:20 PM   #3 (permalink)
OG Priesthood
 
kdo2milger's Avatar
 
Join Date: Feb 2009
Location: SC
Posts: 17,850
Drives: NISMO T
Rep Power: 54
kdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond repute
Default

should be foot lbs tq

35 inch pounds doesnt sound like enough...

can someone else chime in?
__________________
kdo2milger is offline   Reply With Quote
Old 08-07-2009, 11:22 PM   #4 (permalink)
Base Member
 
Join Date: Jun 2009
Location: CA
Posts: 244
Drives: PG 370Z Sport 6MT
Rep Power: 11
davidyan will become famous soon enough
Default

Quote:
Originally Posted by kdo2milger View Post
should be foot lbs tq

35 inch pounds doesnt sound like enough...

can someone else chime in?
its 25 foot pounds, I just looked it up. However, if you have a crush washer between the bolt (I haven't been down to the differential yet) an additional caution you may want to take if you are using a torque wrench is that you may want to tighten it to make it crush before setting the wrench to 25 ft lbs to make sure it doesn't factor in the washer. If it did, you may be too loose. Doubt this would happen but just in case.

Also, while you are down there, can you take a pic?

Last edited by davidyan; 08-07-2009 at 11:25 PM.
davidyan is offline   Reply With Quote
Old 08-09-2009, 12:08 PM   #5 (permalink)
OG Priesthood
 
kdo2milger's Avatar
 
Join Date: Feb 2009
Location: SC
Posts: 17,850
Drives: NISMO T
Rep Power: 54
kdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond reputekdo2milger has a reputation beyond repute
Default

Quote:
Originally Posted by spearfish25 View Post
Can anyone help me decipher what the service manual lists the recommended torque to be for the the tranny and rear diff filler and drain lugs?

For the tranny, it says 34.5(3.5, 25) and for the rear diff 35(3.6, 26). No where does it list units for any of these numbers. I just want to torque them correctly for my oil changes on Sunday. Which one is the value in ft-lbs...I'm guessing the first...

Thanks
heres the description of symbols. top two on left descibe tqs as:

Black box with white wrench = N*m (kg-m, ft-lb)

White box with black wrench = M*n (kg-m, in-lb)

so it will be 25lbs for the tranny and 26lbs for the rear diff
Attached Images
File Type: jpg Symbols.jpg (158.9 KB, 463 views)
__________________

Last edited by kdo2milger; 08-09-2009 at 12:11 PM.
kdo2milger is offline   Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2009 370z Service Manual Complete ready to Download! kdo2milger Nissan 370Z Owners Manual / Service Manuals 132 06-14-2018 08:23 AM
How much can they 370z tranny handle? gmag21 Engine & Drivetrain 3 05-24-2009 10:52 AM
Hot Oil? At Least it's Not the GT-R Tranny... TheWeatherman Nissan 370Z General Discussions 9 05-19-2009 11:14 AM
370z Factory Service Manual modme Nissan 370Z General Discussions 29 03-17-2009 07:48 AM


All times are GMT -5. The time now is 08:52 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2