Question about disk brakes post track day

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7 wonders of th...
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Whistle 

jackb_ms
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Cheers All

I've ordered a new set from Canley Classic.

Should be arriving tomorrow.

I assume the only way to get the bolt of is the old mix of brut force, heat and penetrating liquid?

Any other tips?

Jack

 

SM25T
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If someone used loads of loctite thread sealant on the disc bolts you might need to apply heat the the hub by the bolts to soften it. Put the studs of the hub into a wheel that is laying on the floor and grip the wheel with your knees while using a long bar for leverage on the socket, or a good impact wrench. Preferably with hexagon socket, not 12 point
dikko
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Keeping the brakes on after a few hot laps may tend to do that however thick the discs. Easily done in the excitement of it all.

Back in the paddock keep off the brakes.  Woohoo Driving

aerobod
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I'm not sure on the protocols at tracks in the UK these days, but here in Canada they will flag the session as over and you then have a full cool-down lap before coming in. During that lap no passing is allowed, the aim is to complete the whole lap without touching the brakes at all, so easing off to take the slowest corners at 50-60km/h and cruising along at 100 to 120km/h around the rest of the track. The brakes are usually down to normal road temperatures after 3km of no brake usage on the tracks I go to.

James

jackb_ms
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On the track I was careful to take a "slow" lap before going for a rest.

The lap at Abingdon is short, so maybe I didn't allow enough time for them to cool down enough.

I knew not to put the handbrake on

It was my first proper track day, all part of the learning curve

Jack

JonT
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On sessioned days a cool down lap would be normal after the chequered flag - on an open pit lane day, it's up to you (it's certainly something I try and do, but you need to be even more attentive to mirrors!). The difficultly can be a red flag, particularly if it's near the end of the lap - but there's nothing you can do about it, other than maybe drive slowly down the track access roads? 

jackb_ms
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I've received the disk and the near side was done within 1/2 hours not issue at all.

But the off side is much more problematic. It's not the four bolts holding the disk on it's the vertical link which is not moving.

Anyone around OXford has a press?

Jack

OldAndrewE
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What are you trying to do with the vertical link?  Are you not undoing the wheel bearing and pulling the hub off the stub axle?

Andrew

1985 S3 1700 XFlow.  Undergoing full restoration

7 wonders of th...
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Caliper bolts out, support caliper.

Hub nut off, remover bub with disc,

Remove 4 bolts, knock the hub thro the old disc

The upright and stub axle remain on the car