Water Pump Impeller

[Ianfs]

Did the PM from Volvo Paul (of the other forum which shall not be spoken about ) solve the problem or did you manage to sort it out yourself? That was a marathon eh Bruce, I'm so glad you got it sorted.

[BruceK]

Yes VP in a pm said to check there after everything else had been checked and came up blank. Even so it was masked by the fact there is a double seal on the impeller shaft. One to hold water in and one to hold air out behind it. Because it was not leaking water one doesn't think there is a problem there. And indeed sucking a vacuum on the inlet does indeed create a vacuum. It's only when the shaft spins that the air leak become observable hence the impeller only shredding when on the plane for a length of time. It was a right sod to diagnose and only VP's experience to determine. Even then only after all else was exhausted.

[shibbs]

Glad you got it sorted Bruce, really frustrating when there doesn't seem to be a reason for something to be happening.
And like you say, when you feel like you've checked everything it makes you wonder what on earth can be causing it.
Here's to a trouble free season from here...