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[markey mark]

Can't find anything obvious, but with the bonnet up & the engine running I was very aware of the 'fan belt' tensioner bearing being as dry as a witches .... . With the belt removed to remove the roller (seal popped off & a little grease added) I can feel some play in the pump.
I eventually managed to order another pump from the dealers - had to go down there in the end   - so I'll start stripping it down.  

be best to change it andy mate  

[Andy B]

....

be best to change it andy mate  

The new pump is in a box next to me, unfortunately I've run out of time before I go to work.
The old pump is definately beyond its best, play in the bearing, & there's some evidence of pink antifreeze underneath. Fingers crossed that this is the only place I'm losing water from. :-?

[sassanach]

if you can smell petrol in the coolant then sooner or later you are going to have to bite the bullet  and change those head gaskets.

[Paulus]

In between rain showers, I checked the compression on the engine. Here's what I got.

1. 185 PSI
2. 185 PSI
3. 185 PSI
4. 185 PSI
5. 165 PSI
6. 185 PSI

I repeated the test twice to confirm.

What's that sound like?

[Paulus]

In between rain showers, I checked the compression on the engine. Here's what I got.

1. 185 PSI
2. 185 PSI
3. 185 PSI
4. 185 PSI
5. 165 PSI
6. 185 PSI

I repeated the test twice to confirm.

What's that sound like?

Anybody?  

[TheBoy]

Thats about 1.5bar down...  ....not massive, but I guess could be failing.  If you smell fumes in header tank though, thats fairly conclusive...

[Paulus]

Well it'll have to wait a few weeks (hopefully). I'm off to Cornwall at the weekend.