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[ronnyd]

I seem to have a slight leak, as level in expansion bottle slowly goes down, no water under car but there is coolant
spray on oil filter and on plastic under tray as well. As said it,s a very slow loss and doesn,t need much fluid to top up.
Any thoughts please.

[ronnyd]

Whoops, wrong section, can a admin please move to general help please.

[dbug]

Usual culprit is HBV, back of engine towards drivers side

[05omegav6]

Usual culprit is HBV, back of engine towards drivers side

Last time I looked under my bonnet, the hbv was on the opposite side of the block to the oil filter

Wrong section or no, I would be replacing the top hose from the thermostat transfer pipe to the rad before it fails completely...

[Andy H]

Usual culprit is HBV, back of engine towards drivers side

Last time I looked under my bonnet, the hbv was on the opposite side of the block to the oil filter

Wrong section or no, I would be replacing the top hose from the thermostat transfer pipe to the rad before it fails completely...

More likely to be the transfer pipe

Either way you need to pressurise the cooling system so you can find the leak with the engine cold.

Have a read of Pressure testing the cooling system

[05omegav6]

True enough... Thorough fix would be thermostat, transfer pipe and top hose all replaced

[ronnyd]

Had system pressure tested today, no anomalies there, hoses checked, almost new. Leak may be coming
from oil cooler so it has been temporally bypassed. Also water pump was changed when cam belt was done
10k ago. will see how it goes.

[davieboy0312]

does a 2.2 have a oil cooler like a v6?

[RobG]

does a 2.2 have a oil cooler like a v6?

Has one of sorts but nothing like the V6

[davieboy0312]

every day is a school day rob 

[ronnyd]

does a 2.2 have a oil cooler like a v6?

The oil filter cartridge screws into ii.

[Toledodude1973]

This is nice school though

[ronnyd]

does a 2.2 have a oil cooler like a v6?

The oil filter cartridge screws into ii.

Sorry folks, should read <IT>.

[ronnyd]

No loss so far and temp is steady on 85deg on runs and in traffic, just keeping close eye on it at moment.

[dbug]

Usual culprit is HBV, back of engine towards drivers side

Last time I looked under my bonnet, the hbv was on the opposite side of the block to the oil filter

Wrong section or no, I would be replacing the top hose from the thermostat transfer pipe to the rad before it fails completely...

Last time I changed one it was at the back of engine towards drivers side - drivers side is the opposite side of block to oil filter, but hbv is behind the block under the scuttle, not on the side