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Join Date: Feb 2008
Location: United Kingdom
Re: Pictures of my destroyed clutch, slave cylinder questions
I recon this is just a classic plastic tensioner failure and the cars been sat for ages, the slave was leaking for a while previously and that is why the gunk has built up inside the bell housing same thinking as Symon there), but as a fact in these engines, the valves do not "drop" and then hit the pistons causing the belt to slip, the way it goes is...
...The plastic tensioner cog siezes, reaches the end of it's travel and the belt goes slack OR EXPLODES due to fatigue and either the cam belt snaps or skips a few teeth, the cams stop spining or go out of sync and the valves that are in the open position meet the pistons which are being driven by the wheels via the transmission and crankshaft, this bends the valves, flattens the big end shells and makes your credit card company smile.
You can tell wether it was a snap or a slip by the number of valves damaged, 4 (2 of each) and it was a snap, any more than that and it was a slip first and then probably the belt has snapped afterwards with the constant shock of valve meeting piston, but the engine would be backfiring badly at this point.
The clutch problem in your pictures is common, the slaves leak a lot, but the belt problem is the real nightmare...