‘77 front right wheel scraping sound

[capkirk45]

Vehicle:
1977 Type 2 with 2L dual carb engine

A metal scraping sound has gotten progressively worse over past few weeks (limited driving). Sound very obvious under 25 mph. Sound goes away when applying brakes.

Put bus on a jack stand spinning wheel and sound present. Pulled wheel and sprayed brake cleaner and inspected. No fix. Sound remains.

Is this a brake pad replacement, caliper replacement, or something else?

Thank you

[timvw7476]

should be nothing but a brake pad 'spreader' in there, held in by simple pins.
Guess would be time for a front wheel bearing inspection/repack.
Did you wiggle/rotate the hub after the wheel/tire combo was off?
It's a 30k mile inspection thing. Inner & outers four pieces.

[capkirk45]

[kreemoweet]

Loose caliper mounting bolts? Loose splash shield ditto? Missing pad spreaders or pins? Loose axle nut (right side has RH thread, grease cap must be removed to check)?
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[Earl Bay]

I second the wheel bearing. Check it!!!!

You certainly do not want this to happen

[mikedjames]

What may have happened is that one of the brake pads has jammed in the caliper and so a part of the contact area of the disc is getting rusty.

Rust is about 3x larger in volume than steel, so rust on the disc expands and hits the pads until it wears off, or it abrades the pads, leading to less pressure on the rusty area and so on, so the rusty area grows in size.

Inspect both sides of the brake disc- the area that the pads operate on should be shiny. On mine I had an issue where the inside of the brake disc only had about 50% area that was being contacted by the pad.

I could have had the brake discs skimmed but I replaced them with new, cleaned up the calipers and fitted new pads.
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Ancient vehicles and vessels

1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.

1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy

[capkirk45]

Bought new calipers and pads. Installed but one pad has clearance and the other scrapes.

I’ll post pics

Any suggestions

[mikedjames]

Rust in the caliper or a siezed piston ?
_________________
Ancient vehicles and vessels

1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.

1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy

[Wildthings]

[kreemoweet]