wiredup

So, new to me 911 with center locks. Went to change wheels, and both rear nuts separated upon removal. I cleaned them off, and put back together. I put the c ring in it's groove, and got it locked in to the collar. As soon as I go to put the nut on the wheel, the c ring pops out. It's impossible to keep it in the collar. I have researched to death if there is a trick to keeping the C ring in, but no luck. I will say, the metal washer is no longer flat, kind of has a bend in it, wonder if that isn't helping. I will also say that when I tighten the wheel up as is, I am still getting a little movement of the wheel on the hub, so am wondering, how to keep the ring in, and if that is most likes the cause of the wheel not seating 100%? Appreciate any info.

desmotesta

Cant say for sure but there is a chance it was over tightened at some point which resulted in metal washer getting bent?

If you are close to a dealer, get your hands on 1 new metal washer and give it a try.

Carl Over

I had the locknut separation happened on my 2 front wheels. I told the Foreman at the Porsche dealership and he ordered me to circ clips. This solved the problem.

I was able to assemble the lockout after separation but upon next wheel removal, the nut separated again.

I would bring the nut to the dealer and have the dirt it out. Sounds like new circ clips should sort you out since yours are doing the same thing mine did.

Good luck.

Porsche_nuts

I believe the washer is supposed to be wavy and not flat.

Maybe too much grease? Some areas require light greasing.

wiredup

Thanks, yeah, on one of the diagrams, from the side, it shows the washer as being flat. I tried cleaning all the parts out as good as I could, and no luck. I did order a replacment kit from suncoast, hopefully that will help.

Carl Over

Can you post a link to this kit?

wiredup

https://www.suncoastparts.com/produc...BoCu_4QAvD_BwE

It says for 991.1, but I think its the same for 991.2. I will find out.

Porsche_nuts

check this out if you have not already --


https://rennlist.com/forums/991-gt3-...d-clean-2.html

https://rennlist.com/forums/997-gt2-...sassembly.html

wiredup

Thanks, I had read both of those yesterday. I haven't seen anyone else have the issue of the C-ring popping out, I guess I well rebuild it with the kit and see what happens. It's weird it occurred exactly the same on both rear sides.

Jack F

Had the same thing happens with both my fronts.

https://rennlist.com/forums/991/1168...ouncement.html

Dealer sorted it out. No issues since then.

wiredup

Thank you for the links, my issue is a little different in that rebuilding it, the c clip won't stay clipped in it's groove, once inside the male cone. It pops out as soon as I put in on the hub. I had ordered new kits from suncoast, suppose to be here today, and I will rebuild with those. I feel like it could be that the washer is not flat, so it's causing a spring action on the c ring area. I am more worried, if by fixing this I still have a little movement on the wheel itself when fully torqued down. I did torque, I guess with the c ring popped out, and have a little wheel movement, so haven't driven on it.

Stealth 993

Sounds like your nuts needs a rebuild! I would not trust it if they are popping off before you put them on the wheel. Someone might have troqued them while the car was on the ground, or over torqued.
The washer while having the wavy grove is totally flat. If yours is not, then it is no longer useable. Make sure you don't use too much paste, just enough to cover everything, and fill in the groves.

Take pics, and let us know how the rebuild kit goes, I have been thinking it should be something everyone keeps on the shelf if something like this pops up.

AKKutz

What are you guys using for breaker bar and torque wrench?

wiredup

I am using the renntorq tool. I have 2 wrenches, one set at 135ft lb for loosening, one set at 95 ft lb for tightening.

LexVan

Typo? This seems very-very low.