Carl Fausett

Here is a quick and inexpensive little upgrade to the wheel bearing caps on your 928.

You may have found that removing the wheel bearing caps with a channel-lock pliers leaves them scarred up and deformed. Yet very few of us have VW Tool #9165 to do it as per the manual.

Our solution is to drill a hole in the center of the cap as shown and weld a M6 nut onto it. Then, when we want to remove the cap at the track, we simply remove the short screw we keep in it and insert the longer screw we carry along with us. The long screw will bottom out on the end of the spindle and it pushes the cap straight out without a fuss.

This mod will not allow the stock center cap to be used on the stock wheel, for the nut is too high. If that’s your goal, then weld the nut onto the inside of the cap (there is room!) and use a low-profile screw to cap the hole when not in use. Then your center cap will still fit.

This little mod sure has been handy on my race car—I hope you can use it too.

Enjoy!

SeanR

Not a bad idea Carl. Nice.

IcemanG17

great idea....... unless your bearing covers are already mangled like mine are :>(

KenRudd

Reason #27 I need to learn basic welding.

Bertrand Daoust

Yes, great idea.
Thanks for sharing.

F18Rep

Whew... at first I thought this was going to be a zerk fitting mod. Maybe a revit-nut would fit and save the welding. Of course if I had tig, I would HAVE to use it....Bruce

TheoJ

I use a small hammer and a piece of wood (buffer/extender) to tap on the cup using an angle from behind. There is a little rim that the wood taps on. There is no room to tap on it with a rubber mallet thus the normal hammer and the wood extender. No scratches, no deformation, just some patience needed. No big deal.

FredR

I use a wood working chisel to get mine off when I fit them. If you push the blade into the gap and lever it the cap starts to move and you just work it around the circumsference. Once you get the cover moving it comes off easily.

With my big wheels, the flange interferes with the bearing cap so I have to leave it off. Fortunately the flange mating face of the wheel is flat and acts as a grease seal when mounted so when I fit the centre trims I use a non hardening sealer on them and run with no bearing cap at all and it looks and works fine.

On the stock GTS wheels it does not work and if I run them I have to put the grease caps back on.

Regards

Fred

simos

Perhaps not good idea, but could we use kind of lubrication nipple instead of M6 nut to add more bearing vaseline, without removing bearing caps.....

I have found that the vaseline has moved away from bearings every now and then, I open the caps. Perhaps there isn't any route for existing air to escape,
while pressing the vaseline in, this may cause some undesired side effects

I'm thinking that the life of these bearings will be much longer and bearings needs less adjustments if they can be lubricated more easily and often..

Simple innovations are usually the best ones, well done Carl

daveo90s4

So, if you've been doing it the wrong way in the past, here's a new wrong way to do it.

curtisr

A brilliant idea and solution!

For those who do not feel comfortable around a welder, here's a tip submitted by The Iceman a couple of years ago:

https://rennlist.com/forums/911-foru...er-1986-a.html

He suggests putting a 2" muffler clamp around the cap. Now you've got lots to lever against or hold on to.

Mike Frye

I like it. The same technique as the brake rotor bolt holes. Simple and effective, like all the best solutions.