R34 Troubles

[toby19]

Could I have your suggestions on this one please...

R34 GTT with moderate mods (e-manage, fmic, greddy e-01, 3.5" full exhaust, etc)

Water dripping out of engine block. Can't take it anywhere for a skyline specialist to check as engine might cook. So I was forced to arrange for call-out service with a non-skyline specialist. He did a pressure test and concluded that one of the welsch plugs has gone.

I rang Mark at Hills Motor Sport, Mark at MRC and Peter at Advan. I gave them the rundown and basically asked them to assume that it's a welsch plug job.

Hills says it'll be a 2hr+ job to check/replace at least two of the welsch plugs. Then do a pressure test to check if any of the other plugs give way. If so will need to change them as well. Ultimately might need to take engine out and replace all of them.

MRC says will first check to make sure it's the welsch plugs. If definite will be better off taking out the engine and replace all of the plugs. Logic is if one plug is gone, then the rest are surely on their way out. Replacing all of them would ensure repeat job is no longer necessary. It will be a big job though.

Peter of Advan's initial reaction though was that of disbelief that it could be a plug for such a new car (1999). His theory was that it would most likely have to be a coolant hose somewhere on the right side of the engine (if you're facing the front of the car). I liked that idea because it would mean that it'll be lighter on the pocket to get it fixed.

What do you guys think?

Thanks in advance.