8.25 preload adjuster torque

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bkhudgins

NAXJA Forum User

Location

Jasper GA

• Feb 23, 2010

• #1

I am finishing up a gear install on my 8.25. does anyone know how much torque you need to put on the preload adjusters. It seems like it would not take much to adjust it. I have put about 70lbs on it and it does not change my backlash. It does turn and is threaded right. also the right side is totally loose. So I cant figure out what to do, I am afraid to put to much torque on it. One more thing how tight should the bearing caps be while I am adjusting the preload?
Thanks in advance.
Briain

 

soopergoober

NAXJA Forum User

Location

San Marcos, CA

• Feb 23, 2010

• #2

No offence intended and I hope you get this all straightened out, but this is exactly why I refuse to do my own regear. :wierd:

That said, I'll check some manuals for you and see what I can come up with...

 

soopergoober

NAXJA Forum User

Location

San Marcos, CA

• Feb 23, 2010

• #3

The highest trq I see is 75 ft/lbs, excessive adjuster tourqe will introduce a high bearing load which could cause premature bearing failure. Wish I knew/could find more.

 

tbburg

NAXJA Forum User

Location

Scottsdale AZ

• Feb 23, 2010

• #4

Bearing caps should be tight/torqued down. Can you turn the adjusters by hand? If not, it's cross-threaded. If you have one adjuster pushed hard over, and the other one is loose, either the ring gear is hard against the pinion, or something isn't set right.

 

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bkhudgins

NAXJA Forum User

Location

Jasper GA

• Feb 23, 2010

• #5

I am going to take the carrier back out and start over. I need to grind one of the teeth down so I can get the center pin out. I didnt notice that till now, Glad I didnt get it set up and then notice that. I will update once I get it set up.
Yeah this is my first gear install and my last.....

 

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bkhudgins

NAXJA Forum User

Location

Jasper GA

• Feb 23, 2010

• #6

Thanks for the replies ...I'm an idiot I didnt't have my bearing pressed on all the way.

 

asp

NAXJA Forum User

Location

Westport, MA

• Feb 23, 2010

• #7

when i reset my carrier i found that the spec was 100 ft lbs...

 

jeeperjohn

NAXJA Forum User

Location

Temecula, CA

• Feb 23, 2010

• #8

The bearing preload adjusters should be torqued to 100 foot pounds with the bearing cap bolts good and snug (like about 20 foot pounds), after you have the backlash set torque the bearing caps to 85 foot pounds. Don't forget the loctite.

 

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RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Feb 23, 2010

• #9

bkhudgins said:

I am going to take the carrier back out and start over. I need to grind one of the teeth down so I can get the center pin out. I didnt notice that till now, Glad I didnt get it set up and then notice that. I will update once I get it set up.
Yeah this is my first gear install and my last.....

Click to expand...

When I install the ring gear,I prefer to index it so the crosshaft pin falls "between" 2 teeth.I means less material(teeth) removed(per tooth).