I need an opinion about a new noise that developed last weekend (Zetec ZX1 with quite new semi-close T9).
When I have the engine idling slowly (about 800 rpm) there is a distinct and rather loud metallic rattling from the gearbox. Imagine the harsh sound of an old diesel engine idling cold.
When I press (disengage) the cluch it vanishes immediately. Release the clutch and it is back.
Raising the idle speed reduces the noise until it goes away by approx. 1200 rpm (or maybe the exhaust noise drowns it).
The only thing I know of that is moving additionally when releasing the clutch is the input shaft and related cogwheels. Something serious to rattle there?
Thanks,
Gert
When I have the engine idling slowly (about 800 rpm) there is a distinct and rather loud metallic rattling from the gearbox. Imagine the harsh sound of an old diesel engine idling cold.
When I press (disengage) the cluch it vanishes immediately. Release the clutch and it is back.
Raising the idle speed reduces the noise until it goes away by approx. 1200 rpm (or maybe the exhaust noise drowns it).
The only thing I know of that is moving additionally when releasing the clutch is the input shaft and related cogwheels. Something serious to rattle there?
Thanks,
Gert
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