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The cam pulley for the fuel pump isn't turning when the engine turns over.
I was driving at about 60-65mph, there was a 'thud' and the engine shut down (symptoms exactly the same as when the fuel pump belt and tensioner let go a week earlier, right down to the fault code (low fuel pressure or something)).. pulled onto the grass verge and awaited recovery.
Got the rocker cover off earlier this evening and the cam is ok, not snapped. The pulley has about 5 to 10mm of movement in it.
Now here's what I don't get.. if the chain has snapped, sufficiently for the cam to not rotate, surely the pulley/cam should just spin without the constraints of the belt? If it's not spinning, the chain is still preventing it and turning the engine over would spin the cam/pulley too?
Does that make sense?
Is it safe to crank the engine a couple of times with the rocker cover off to see if the cam spins?
If I'm thinking right, what else could stop the fuel pump pulley/belt from spinning? This is potentially a £1500 question, the cost of supply and fit a replacement engine.
I was driving at about 60-65mph, there was a 'thud' and the engine shut down (symptoms exactly the same as when the fuel pump belt and tensioner let go a week earlier, right down to the fault code (low fuel pressure or something)).. pulled onto the grass verge and awaited recovery.
Got the rocker cover off earlier this evening and the cam is ok, not snapped. The pulley has about 5 to 10mm of movement in it.
Now here's what I don't get.. if the chain has snapped, sufficiently for the cam to not rotate, surely the pulley/cam should just spin without the constraints of the belt? If it's not spinning, the chain is still preventing it and turning the engine over would spin the cam/pulley too?
Does that make sense?
Is it safe to crank the engine a couple of times with the rocker cover off to see if the cam spins?
If I'm thinking right, what else could stop the fuel pump pulley/belt from spinning? This is potentially a £1500 question, the cost of supply and fit a replacement engine.