Should there be a washer here?

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dsvw
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Joined: Fri Nov 09, 2018 3:18 pm
Car: 2013 Infiniti G37x

Should there be a washer here?

Postby dsvw » Sat Oct 02, 2021 8:57 pm

Hi, I have a 2013 G37X.

I replaced the front right cv axle with an aftermarket one. The new right front axle does not have a cotter pin to hold the large nut on over the hub like the left front one does. The aftermaket cv axle came with a self locking nut with crimped edges.

Should there be some type of large washer under this nut?
A spring washer perhaps?

Mine keeps coming loose.

Thanks!


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VStar650CL
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Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 8:31 am

Those crimp-nuts can be problematic, I've seen a few that kept getting loose as you describe. There is generally no harm in adding a flatwasher plus a split lockwasher underneath the big nut to keep it in place. Never tried a belleville (wave) washer, but I doubt it would be as effective as a splitter. Split washers have the advantage of both bite and spring force.

dsvw
Posts: 9
Joined: Fri Nov 09, 2018 3:18 pm
Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 8:38 am

Thanks for the reply.

So the order would be...Large nut, split washer (otherwise known as a lock washer) and a regular washer against the hub?

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VStar650CL
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2004 Nissan Altima 2.5 S

Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 8:43 am

Yep. You can't just call it a lockwasher, though, there are lots of different types. This is a split-lock:

Splitter.jpg
Splitter.jpg (7.43 KiB) Viewed 82 times

dsvw
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Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 8:56 am

Thanks. Big help. I guess I am going to have to find a new nut as well. I think they are single use only?

dsvw
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Joined: Fri Nov 09, 2018 3:18 pm
Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 9:01 am

Also, Do you know what the proper torque is for this nut. I have read anywhere from 180 to 203 foot pounds of torque.

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VStar650CL
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2004 Nissan Altima 2.5 S

Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 9:43 am

The OE nuts are not flagged for single-use, only the cotter is (which of course yours doesn't have). Torque is 92 lbs/ft. It's not specified in the ESM, but I highly recommend a generous coating of grease on the axle splines to prevent any clickety-clack noises on takeoff and turning.

dsvw
Posts: 9
Joined: Fri Nov 09, 2018 3:18 pm
Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 11:19 am

Sorry to sound dense here, but by flagged do you mean the compression nut that I have is only good for single use and the nut that uses the cotter pin can be reused?

Or can I reuse my compression nut that came with the aftermarket axle.

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VStar650CL
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Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 11:31 am

No, it means Nissan doesn't require replacing the nut unless it's damaged. When stuff is flagged "single-use" on the exploded diagrams in the ESM, it should be replaced anytime you remove it. In fact, if we do a warranty repair that requires single-use parts and they aren't all billed out on the repair ticket, Nissan will kick back the entire job and refuse to pay for it. Serious stuff if the single-use part happens to be a $0.05 cotter pin and the replaced part is a $400 axle. ;)

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VStar650CL
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2004 Nissan Altima 2.5 S

Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 11:40 am

Here are the exploded diagrams for the front axle of your AWD G. The red arrow indicates the symbol for a single-use part. The symbol is the same in all recent Nissan/Infiniti SM's. That's also where you'll find torque specs, and most of them are the same as what's shown here. The figures are N.N(K,F.F) where N is Newton-Meters, K is Kilogram-Meters, and F is pounds-feet). With smaller fasteners they will usually show centimeters and inches instead of meters and feet.

13 G37 AWD Front Axle.jpg

dsvw
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Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 2:13 pm

Thanks. You have been a big help. I was able to find a washer big enough to fit the axle at one of the big box hardware stores today but I couldn't find a split washer big enough. I will try NAPA tomorrow for a large split washer and new nut.
I have been fighting this thing coming loose all summer. Next time I will buy a Nissan factory axle with the cotter pin hole.
This compression nut has been useless.

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VStar650CL
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2004 Nissan Altima 2.5 S

Re: Should there be a washer here?

Postby VStar650CL » Sun Oct 03, 2021 2:31 pm

Try Grainger or Zoro online. Grainger will let you pick up a small order if you have a Grainger warehouse locally, and Zoro sells on eBay so you can usually get onsie-twosie orders economically that way.

dsvw
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Joined: Fri Nov 09, 2018 3:18 pm
Car: 2013 Infiniti G37x

Re: Should there be a washer here?

Postby dsvw » Sun Oct 03, 2021 3:14 pm

I will try one more single use nut, lock washer and locktite for this application. If it comes loose again, I may try a small weld. I am all out of ideas less drilling a hole through the bolt and adding a cotter pin.


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