Oil Galley Plug On Back Of Head!!!!!

I had another member of a forum give me advice on using this plug location to run the turbo feed line from on m 2.3L turbo motor. I am not saying that this was the cause for what happened but would like to know if it could be the problem. If it is then I wouldn't want to tell anyone else to do this. I put the new turbo on and ran the brand new stinger oil feed and return lines. We left the feed line disconnected at the turbo for a few seconds to prime oil system and clear any debris that may have been caught up in them due to install. We then connected the feed line to the turbo and primed again to get a good supply of oil to the turbo. Then we started the car and it ran great. No problems whatsoever. We took the car for a short(800 ft) ride and noticed smoke coming from under the car. I assumed that since I had painted the exhaust flange etc. with VHT flameproof paint that it was just baking on. Well I noticed about that time that the car seemedto be losing a bit of power so we turned around and headed back. I made it right to the end of my buddies driveway and the car stalled. I tried to turn it over again and thats when it happened. The timing belt snapped in half. I thought maybe bad belt then I remembered that we just got it whe we started head job. I confirmed my suspicions when I wrapped the belt around cam gear and tried to turn it. It was locked solid in place. It is a ranger roller setup by the way. The only thing we can come up with is that the plug is actually a blockoff of sorts to the cam supply oil galley and we took away too much oil and voila no more worky. Any one who has any idea if I am correct or if the could be another anser please let me know. I have spent two months working on this car since I bought it. I haven't even made one decent ride in this car. First we hade the head surfaced and did the head gasket and brand new six point head bolts, then we put a rebuilt turbo on(which blew up upon startup), then we put a new turbo on and this happend. All the while I have been purchasing parts for the interior/exterior to bring the car back to nice condition and installing them while waiting for parts to fix the turbo/head problems. Please help me. the next step if I can't fix it with yet another head, head gasket, roller cam/followers, and head bolts is to send it to the crusher.

The plug is a block off. The oil galley is, most likely, drilled through that hole. That galley feed everything in the head that gets lubed. I can't say for sure that sourcing the turbo supply to there is what messed up the head. Here is another guy that used that as an oil supply source and it worked for him;
http://natomessageboard.com/cgi-bin/ulti...036#000004

When you autopsy it, see if the cam bearing were correctly installed. If they aren't positioned right they won't get oil

As Pete says, that is the main galley for the head. But the vertical galley that feeds it is where the OEM oil takeoff and pressure sensor is located. So it's only a matter of a few inches from one location to the other. But the OEM adaptor that screws into the side of the head may have an orifice sized to provide correct pressure to the valve train while diverting oil to the turbo. I think Pete's question about the bearing installation is a valid place to look. The cam bearing feed in in the bottom of the tower and the hole in the bearing has to align with that feed (OEM setup).
There are grooved bearings available that allow the bearing feed hole to be rotated around to the 11:00 positon, but the drilled holes in the top of the towers have to be taped and plugged.

OK. I think we are on the right path here. I never even thought about the orifice size intil you said it. The bearings were right since the car ran fine for two years prior to my purchasing it. Nothing was done to the head excpet that it was surfaced for head gasket replacement. You don't think I could have damaged the new turbo with to much oil do you? The thing that really puzzles me is that the oil level was exactly on full right before the ride but was extremely low(three quarts?) by the time the belt broke but it didn't come out the exhaust and there wasn't a crop dusting of smoke behind the car either. I haven't looked yet but will when I get home but I am hoping that the fitting for the oil feed line didn't get broken on our short trip. The turbo didn't sound wrong though. It actually sounded healthy right before the cam seized. I don't know. I am bench guessing until I get home and tear her apart today. Thanks for the help guys. I am sure I will have more questions before this is over.

Oil, Did it leak out the oil return line?

There was no external leak from the oil return line or anywhere else that we could see. A friend is towing the car down to my house as I write this. I am going to check all of my connections again and look for any leaks. There were no leaks for sure at the oil return line for the turbo if that is what you are referencing Pete. I, as well as, the other two guys who were helping me through this physically are truly stumped as to what could have caused this. We cleaned, checked and rechecked everything during the head install and the new turbo and lines install. The only thing that makes any sense is that something came loose in the top end and bammo. I will let you know what I find when it gets here and I take off the valve cover. I should have some interesting news and pics by then. Thanks again guys.

Kind of a guess here but if it was three quarts low, that may be why it seized????

Gotta wonder where 3 qts went?

I have been running my turbo feed line off the back of the head for 3 years now. I haven't had any problems.

If all of that oil can't be found somewhere outside of the engine, try checking your intake for it. I've seen this happen before, under different circumstances but none the less, the turbo leaked all of the oil into the intake.

Well as it turns out after getting the valve cover off the only damage was the cam bearings. I got the cam out last night and the front cam bearing was seized to the cam and the front cam seal was destroyed. The second cam bearing was much better but still not good. Three and four were lightly scored. The funny part is that there was plenty of oil laying in the valley of the head and the cam lobes, followers, and HLA's were covered in a nice coat of oil. I don't get it. Is it possible that I overtightened the timing belt and it took out the front bearing which in turn took out the others. One more question, there is a little nub that is part of my VC gasket that sits in the front cam bearing hole, should it be there? I don't know what to do now.
We figured out where the oil went. We were so frustrated we didn't even think of the fact that we were on a hill the other night. The oil level was fine once we got on level ground(I'm a dummy).