2.2 Turbo issues

[Mugs]

Ok, I will have to admit my nievity on this one. This is the first 2.2 turbo I have worked on and so I was green going into it. It is a 94 Leg wagon 2.2 SOHC Turbo.

It came in runnning like a dog and and upon further diag work I determined that the turbo was shot. But also the valve covers were leaking like a sive and the oil pan was leaking like mad as well. When I pulled the oil pan I noted that it was way way way too glittery for my tates and put it on the RO. But the boss did nothing about it so I completed the job and then test drove the piss out of it for about an hour or so. Everything seems to be back to "normal" so I turned in the keys. Now it is back (i week later) and making a horrible valve train noise...like it is starving for oil. I don't have the proper oil pressure tester to be able to tap into the oil pump, but I am just wondering is there anything I could have missed when doing the oil pan. The pick up tube came out different then all the others, in the fact that it is attached to a bracket and the bolts were in a different place. After all the repairs were done there was this one little bolt that has a little orffiss hole going through it. I could not figure out where it went and all the bolts that held the pick up tube and what not was in place so I ignored it, and besides a few other oddities fell out of the pan as well. Did I miss something, or is this engine toast like I tried to tell the customer and my boss, or is there some tests I can do to figure out what the heck is going on. Any and all help would be greatly apreciated. Thanks in advance.

[Legacy777]

The little bolt with an orifice is one of the oil squirters for the underside of the piston. They are notorious for loosening and ending up in the oil pan. They have a little check valve in them so they only open at higher oil pressures. I couldn't tell you how high though.

 

http://main.experiencetherave.com/subaru/images/ej22t/03

 

If the oil squirter has fallen out, much more oil will be coming out of the hole then is supposed to, which will probably lower the oil pressure.....which may have led to the issues the motor is experiencing. The pictures below show how big the hole is without the oil squirter.

 

http://main.experiencetherave.com/subaru/images/ej22t/06

 

It's possible the hydraulic lifters are collapsed making the valve train noise. That is a relatively easy check. But beyond that without tearing the motor apart, I think that's about all you can do. There sounds to be multiple issues.

 

Hope that helps