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[Murph]

Just when I thought I had everything ready for MOT I seem to have developed a leak somewhere, but I cant see where from.

There's a bit of steam coming from the passenger side right at the back of the engine bay and when I looked down the back I could see a thin water line running down the side of the bell housing, close to where it mates to the block.

Being a noob to this car and engine (X25XE) I can't picture which pipes run in/above that area. I will be removing the scuttle to have a good look but I was wondering if any of you more experienced peeps might have a suspect in mind.

I changed the HBV a couple of weeks ago and once that was done there was no leak anywhere.

There is plenty of ant-freeze in the system but with the temperature dropping to -10 here the other day I wont rule out a core plug or something - are there any in that area?

Oh and I broke the bonnet release cable too... what a great day!

[RobG]

Just when I thought I had everything ready for MOT I seem to have developed a leak somewhere, but I cant see where from.

There's a bit of steam coming from the passenger side right at the back of the engine bay and when I looked down the back I could see a thin water line running down the side of the bell housing, close to where it mates to the block.
Being a noob to this car and engine (X25XE) I can't picture which pipes run in/above that area. I will be removing the scuttle to have a good look but I was wondering if any of you more experienced peeps might have a suspect in mind.

I changed the HBV a couple of weeks ago and once that was done there was no leak anywhere.

There is plenty of ant-freeze in the system but with the temperature dropping to -10 here the other day I wont rule out a core plug or something - are there any in that area?

Oh and I broke the bonnet release cable too... what a great day!

Coolant transfer pipe at rear, coreplug at rear of head, coolant bridge in the "V", headgasket. IIRC the easiest way to locate the source is a pressure test with plenum removed

[Agemo]

Sounds like the HBV to me, did you fit new or second hand?

[Murph]

I fitted a new but none genuine one.
The car had a few other problems at the time so I sourced cheaper parts to start with so that the car didnt turn into a money pit.
I'm starting to like the car alot though so this trend will not continue!

[Murph]

Coolant transfer pipe at rear, coreplug at rear of head, coolant bridge in the "V", headgasket. IIRC the easiest way to locate the source is a pressure test with plenum removed

Exactly the kind of tips I need - ta!

[RobG]

Coolant transfer pipe at rear, coreplug at rear of head, coolant bridge in the "V", headgasket. IIRC the easiest way to locate the source is a pressure test with plenum removed

Exactly the kind of tips I need - ta!

Assuming you`re "non-genuine" HBV is not leaking

[fiend61]

Sounds like the HBV to me, did you fit new or second hand

the hbv is on the other side 

[Murph]

It is that - but just to appease the doubting thomas in us all I will check it anyway! 

[albitz]

Depending where its leaking from it could still leak in the way described though,imo.