[928uk] Yet another track day at the Ring - front wheel bearings

Paul R Smith smiffypr at gmail.com
Fri Jan 31 00:11:28 UTC 2025


I bought https://www.ebay.co.uk/itm/370421542360

I tightened it onto the stub and only rotated it 180 degrees back and 
forth (I didn't want to create pyramids) then tightened again and 
rotated until it was difficult to tighten.

I was using my own initiative, not following a video.

I think you might have difficulty getting the tool onto the part of the 
stub that the inner bearing sits on, but you might be lucky.

If you want me to send you the tool, I can do, but they're not too 
expensive.

Smiffy

On 30/01/2025 22:46, Paul wrote:
Can you share any advice on how to knurl the stub axles?

Did you only do the outer, as I definitely have play on the inner as well?

What tool did you use?

Are there any videos you'd recommend for technique?

Thanks

Paul
87 S4 Manual

On Sat, 28 Sept 2024 at 17:53, Paul R Smith via 928uk 
<928uk at lists.928.org.uk> wrote:

    That's just reminded me, I said I would give an update on my stub axle
    knurling experiment.
    (I knurled the section of the stub axles where the outer bearings sit,
    then adjusted the bearings as per the workshop manual). It has just
    passed it's MoT without a front wheel bearing play warning!

    Smiffy

    On 28/09/2024 15:18, Paul via 928uk wrote:

    Destination Nurburgring Event track day, giving a 928 curious fellow a
    passenger ride

    My right indicator gets a lot of use, but the car is working properly, I
    was short shifting at 5k because I'd only just blown the engine in my
    Cerbera here a couple of months earlier

    Before the lap he explained that his wife probably wouldn't let him
    get a
    928, after the lap it seemed entirely possible that he might get one
    anyway

    Immediately before the track days I'd replaced the oil cooler, rear
    suspension parts, and the radiator failed on the way to Germany

    In between the track days I'd had to replace the clutch master
    seals, hence
    my bite point excuses

    The brake pads were near end of life, and the front wheel bearings were
    slightly over tightened to remove some of the inevitable play, and
    one of
    my more experienced passengers could feel that there was some minor
    issue

    Nevertheless the car has never felt so good on track

    https://youtu.be/K4y0d98Vzks

    Paul
    87 S4 Manual - EZK-S enabled





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