Below is some info from a friend of mine who is rebuilding a TT engine. He has asked me to post this info+pix up in case anyone has seen/heard of this problem before, or indeed to make them aware of it.

 

Attached are some photos: excuse the quality, they were done late last night on a mobile phone.

 

 

"Here are some pictures of Number 6 "front" inlet port, this is the best I could do with my camera phone.

 

Just a run down on the history of this engine, bought off ******* on our forum with less than 30,000 miles on it. I stripped it down re-rung, glaze busted the bores, skimmed heads, re-faced valves &valve seats, polished crank, rebuilt and ready to drop back on to my car, as you could see

 

Just noticed water sat in this inlet port with no reason Um, since engine has been built and sat where you saw it (inside a heated garage), no reason for water to be in there!!!

 

All other ports clean and dry, only no 6 sat in water!! If you look, you can see the white bubbles where it looks like "maybe" a fault in the alloy!! I have seen this on some Vauxhall diesel engines and they lose water into the cylinders via this way "not a good sign really"

 

Plus I noticed after I stripped the engine at the start, I noticed No 6. bore had some unexplained water marks on the walls of the cylinder

 

We removed the marks once we glaze-busted the block.

 

All in all, it looks like a fault in this port!! Only reason I ask about this fault is that I never heard anyone mention anything on the Forum about this faulty, or leaky cylinder heads

 

Another mystery for the guys on the Forum and hope to make more awareness of this problem, if there is one"

If that is on a fresh rebuild then there will be no coolant in the heads to leak in there. It must have dripped in there IMO