very confused........clutch/flywheel issue

[Upatdawn]

62 plate Peugeot 508 1.6 diesel

130,000 miles


driving up a steep hill with a S bend, driver changes down, the revs shot up (over 3500rpm) with no increase in speed

driver stops just after and there is a burning smell from under the bonnet over the gearbox N/S/F and N/S/F wheel..

he carries on and its done 300 miles since with slight burning smell (same as overheated brakes)

car drives well, wont stall in 1st pulling away with parking brake on and when in 4th at 40 mph full throttle it pulls well no slipping..

garage say its the clutch so its in tomorrow for clutch and DMF

never had a clutch not slip and still smell..

brake pads dont seem stuck on as i pushed the car with 1 hand and it rolled ok

garage showed driver "metal filings" but i wasnt there

any thoughts?

[GreenV8S]

Upatdawn said:

the revs shot up (over 3500rpm) with no increase in speed

For a conventional manual gearbox which is in gear, the only way for the engine speed to rise without the road sped also rising is clutch slip. Burning smells at the same time prove beyond any reasonable doubt that the clutch is slipping. It could be slipping because it's worn out, or contaminated, or there was some pressure on the release mechanism (release mechanism faulty, or driver riding the clutch pedal).

[Upatdawn]

I drove it later and found no sense that the clutch or dmf were faulty so I cannot explain the smell or the incident of the rpm shooting up but it's getting clutch and dmf tomorrow

[InitialDave]

My guess is they'd overworked the clutch prior to that, perhaps slipping it too much, and then an uphill gear change with lots of load and getting on the throttle a bit too harshly might have been the last straw for it in its state at the time, but once cooled down it was able to handle normal loads/driving.

So it sounds to me like a clutch that, if not yet having exited the building, has definitely starred muttering excuses and looking pointedly at its watch.

[Upatdawn]

InitialDave said:

My guess is they'd overworked the clutch prior to that, perhaps slipping it too much, and then an uphill gear change with lots of load and getting on the throttle a bit too harshly might have been the last straw for it in its state at the time, but once cooled down it was able to handle normal loads/driving.

So it sounds to me like a clutch that, if not yet having exited the building, has definitely starred muttering excuses and looking pointedly at its watch.

Not heard anything bad from the garage so fingers crossed it is on the mend...

[stevieturbo]

Upatdawn said:

I drove it later and found no sense that the clutch or dmf were faulty so I cannot explain the smell or the incident of the rpm shooting up but it's getting clutch and dmf tomorrow

The obvious explanation is the clutch slipped. Whether driver induced or it's at the end of it's life, or other....who knows.

But your explanation of what happened is that of a slipping clutch.