:duffer: Ok, need real help on this one otherwise it's gonna cost me mega bucks!! My Z is finally being looked at after being laid up in the garage for 2 months, the problem was a turbo coolent hose splitting causing all the water from the system to drain away - after inspecting the rad and hoses the whole lot was full of real thick sludge hence indicating a head-gasket failiure ie the oil has somehow got into the water. The problem is my garage who I trust have done a compression test on the Z and everything checks out OK. The thermostat is also ok to doing it's thing - it's just that the system is blocked solid with sludge so how can it be a head gasket??!!!

 

The garage still think I should play safe and change the head-gaskets and have a complete engine flush down as well as the hoses changing cause oil contaminates hoses. Do I go to this expense or do I just have and engine flush and change of hoses seeing as the compression check out ok?? The car also still sounds and run's sweet even with blocked hoses and a radiator full of nasty stuff!! Please help!!! :confused:

Give Z Tech a call, Ryan will sort it out for you....

:duffer: Ok, need real help on this one otherwise it's gonna cost me mega bucks!! My Z is finally being looked at after being laid up in the garage for 2 months, the problem was a turbo coolent hose splitting causing all the water from the system to drain away - after inspecting the rad and hoses the whole lot was full of real thick sludge hence indicating a head-gasket failiure ie the oil has somehow got into the water. The problem is my garage who I trust have done a compression test on the Z and everything checks out OK. The thermostat is also ok to doing it's thing - it's just that the system is blocked solid with sludge so how can it be a head gasket??!!!

 

The garage still think I should play safe and change the head-gaskets and have a complete engine flush down as well as the hoses changing cause oil contaminates hoses. Do I go to this expense or do I just have and engine flush and change of hoses seeing as the compression check out ok?? The car also still sounds and run's sweet even with blocked hoses and a radiator full of nasty stuff!! Please help!!! :confused:

 

Had the same problem. The gaskets were completely intact but a hairline crack in one of the heads that we presume was only opening up as the engine got really hot was the source of the problem.

I just hope that you haven't got a cracked block as I had as a result of an ongoing overheating problem from a knackered head gasket..

Thanks for the help everyone, I hope the block ain't cracked either!! Do you have Z tech's number please!!

Thanks for the help everyone, I hope the block ain't cracked either!! Do you have Z tech's number please!!

 

Sure do 07968 166640 If I can't get to the phone leave a message and I will call you straight back Jon

 

Ryan

Job on then hopefully...