Is it possible to blow the head gasket and not lose compression on the cylinder? I've just tested mine today to see which cylinders it had gone on and there is no loss of compression on any of the cylinders, I'm thinking the leak may only be oil to water through the head. Has anyone had this happen to them before? Could there be another reason my radiator has mayo'd up?

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

I've got another engine to put into it, it's in the garage waiting to go in ATM, I was just wondering whether the old engine is worth anything, if it is just the gasket then I will probably rebuild it, I've not done a full engine rebuild before, only heads so thought I might aswell give it a go. It hasn't lost any power though. I assume that I should see a crack straight away when I pull the lump out or can they be hairline inside the engine, somewhere that I won't see it

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

Coolant, over a very long period of time though. Top it up once every 3 months or so, the oil hasn't changed colour at all either, it is just the radiator cap that has mayo'd

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

No, I started it the other day (hasn't been started for 18 months mind. Head gasket was why it went off anyway) turned over kicked in first time even on the old petrol and revved clean all the way. I am thinking of changing the radiator (that is gone, which is why I thought the head had gone) and just running it until the end of it's life. Spend a bit more time on the engine in my garage, getting it rebuilt and some shiny bits for it off RichW

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

Would a small leak result in the radiator having discolouration on the filler cap? I know the rad has a hole so that is one that can be plugged. What I am worried about is that if I change the rad and then there is still the leak, then the new radiator will get gunked up with the oil from the head gasket going. Will this happen damage the new radiator or can this just be flushed out?

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

Well the new radiator I am fitting is a Nissen (hasn't arrived yet) but I'm sure they don't have the built in heat exchanger so I would say that I will have to go for a seperate oil cooler if I am going to run it on the track. I've spoke to people that say the oil doesn't get that warm but without this heat exchanger I thought it will?

How terminal is it going to be if there has been water getting into the oil this way, I can't hear any knocking or ticking from the engine so is it a case of fix this problem and I could be fine with the engine or is it just a waiting game until it does go?

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

I've not received it yet, I've bought it off one of the members off here and forgot to ask

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"

If you want it sniff tested give me a shout, there 100% proof

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Team 6 Cylinders

Had 3 oil coolers go on various customers cars.