Ferrari 488 rear popping noise (with video)

Brake pads shift back and forth once per cycle .. hard for me to tell ..

 

Axle splines shifting in he hub. disassemble clean and reinstall with new nuts and green Loctite bearing retaining compound on the splines, common issue we have seen many times.

 

Really? I have never seen such a thing on any car! How did you discover this and what is the cause? Poor tolerances in the splines? I must remember this one..

 

Actually this one sounds worst then most but we have seen it on the 456-812 and 430 to current. Some models seem to be worst then others. just enough of a tolerance issue to pop between reverse and forward. You will find a small amount of rust dust when you pull them apart make sure it is cleaned out haven't had it return once it is serviced..

 

Going strictly off of a video is always tough. Red Loctite is not designed to take up clearances like the shaft retaining compound but it should have worked for a bit.
Other items to look at are the torque of the axle bolts themselves, someone already mentioned the brake pads but this noise sounded more significant and it occurred on acceleration not on application of the brakes. Appears closer to suspension travel then perhaps the application of torque. Perhaps remove the lower shock bolts, ensure the spacer insert is properly in the lower arm and then reassemble the bolt with plenty of molly lube when there spacer fits into the arm and the bolt contacts the lower arm and passes through the arm and the shock. Bolt is the lower pivot and while I haven't seen that bolt make noise on the 488 it was really common on the 360/430 to the point Ferrari updated the bolt with a coating. The coating really didn't sort it out for long and we went back to molly grease. See attached picture for lubrication points. Otherwise some electronic chassis ears may help pinpoint. tough ones like this separate the men from the boys when it comes to diagnosis and fixing odd issues. Image Unavailable, Please Login

 

It is a loud noise.. But it is definitely rotational. I wonder if it is not a bad c.v joint

 

I'd second something in the drive shaft or CV joint.

 

The noise on my 599 was not a " Popping " but a " Click, Click noise ", mainly when reversing but then after reversing and then going forward.
Technician at Ferrari said its a common problem on Ferraris, the drive shaft locking nut comes loose over time just enough to cause slack in the drive system, so you get a click, click on take up.
They replaced with new nuts and Loctite thread locker, once fitted you have to wait at least 24 hrs before driving to allow the Loctite to set.
Has been fine for over a year, but now just this week it i heard a click, click again on the OS rear, aaggh!

 

What was the fixed ..re-position and tighten ?

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