Oil pressure guru help??

[Styler91TSIAWD]

I just built this new motor. I installed a oil pressure gauge and I just started my motor for the first time. I have a 91 motor with a waffle cooler style and the sending unit I pulled out and this is where I installed the gauge sending unit. I have let the motor idle for 3 (2) minutes sessions. I have good oil pressure and the sending unit(90 PSI) I know this is high but I have no oil pressure at the head. I backed the oil feed line off at the turbo and no oil has come out. Where could my problem be. Could it lie in the oil pressure relief valve.

No balance shafts. and the bearings were installed properly. Just wondering what would happen if say the oil pressure relief valve is stuck shut.

 

[1993TalonTsiAWD]

When you let it run, did it smoke at all, a bluish tent, and was there any noise, like a ticking sound, Also how are you coming to the conclusion there no oil pressure at the top end, just because the turbo isn't getting any, doesn't mean the head isn't. I would pull of the turbo oil lines and see if there plugged, also were is the oil pressure at, high low or medium

Derek

 

[2.4 turbo Hyped]

Sounds like a clogged oil line or passage to me.

 

[Styler91TSIAWD]

I have 90 PSI of oil pressure at the sending unit and in usually if you take the oil cap off there is oil sloshing around everywhere. I pulled the oil feed line to the turbo and there is no oil coming out.

 

[1993TalonTsiAWD]

I have 90 PSI of oil pressure at the sending unit and in usually if you take the oil cap off there is oil sloshing around everywhere. I pulled the oil feed line to the turbo and there is no oil coming out.

like we have said you probly have a clooged oil line. Erplace or clean them out both the line going into the turbo from the head, and the oil return line going from turbo to oil pan. So really your getting oil to the top end, just not the turbo. Is it leaking any oil around the turbo, because in extreme cases the seal could leak the oil, but you would notice all the smoke and more than likly it's not that. If you continue to run it even for a few min with no oil to the turbo you can kiss it good bye, it will destroy the seals in it, so I would getnew lines or clean the ones you have ASAP

Derek

 

[blue1]

Styler
If you disconnect the supply line from the head itself do you get oil out of there? If the oil by pass valve is stuck closed i think your oil pressure would skyrocket more than 90psi!
The waffle type coolers they had trouble with those if they were over torqued, if i remember correctly, cant remember where i saw the thread but what you are experiencing sounds familiar with that. If your lifters are quiet there must be oil going to the head, so to rule out blocked line go straight to the back of the head.

 

[Styler91TSIAWD]

Styler
If you disconnect the supply line from the head itself do you get oil out of there? If the oil by pass valve is stuck closed i think your oil pressure would skyrocket more than 90psi!
The waffle type coolers they had trouble with those if they were over torqued, if i remember correctly, cant remember where i saw the thread but what you are experiencing sounds familiar with that. If your lifters are quiet there must be oil going to the head, so to rule out blocked line go straight to the back of the head.

This is where i have dissconnected the oil line going to the turbo. You know the little banjo bolt on the passenger side of the head in front of the CAS. I am not getting any oil coming out of there. what do you mean go straight to the back of the head to rul out oil not getting to the head?

 

[blue1]

Have they or you put the oil distributor plate back on the inside of the head back!!

 

[Styler91TSIAWD]

that plate was never taken off do you think I should take it off to see whats inside. Also I just looked in my manual and I can't find the torq specs to reinstall it. So you wouldn't happen to know the torq specs would you. Thanks.

 

[Styler91TSIAWD]

Ok I just found something out. I pulled the oil distributor in the head. You know that little cap that is under the valve cover on the passenger side of the head right to the right of the number 4 spark plug hole. There are three 10mm bolts holding it on. There are five holes. four little small ones and one kinda big one. The holes are offset in a diamond sort of shape so bear with me. 1=intake lifter this is the top most hole, 2=exhaust lifters this is the bottom right most hole, 3=cams and turbo feed line this is the bottom left most hole and the forth hole whick I think is the feed hole does not let any air go anywhere and I can stick a peace of coat hanger straight down almost to the head it stops about a half inch from the head. When I look on the side of the head right under the thermostate housing there is a little allen stud bolt which I think was used in the making of the head to drill this hole (or the feed hole). The fifth one I don't know what it is just yet this one is blocked off by the cap. This is also the biggest hole. Well on to my testing. I put my blow gun on the intake lifters hole everything is clean and clear air blows through great, same with the exhaust lifters, cams and turbo hole. On the fourth hole nothing(this is the that goes down almost to the head and stops exactly where the allen stud under thermostate housing is). Again I can stick a peace of hanger straight down this hole and blow air into it and nothing. Also I took the cap apart and its like a little chmber four holes that go into these holes I speak of.

Picture this a flat deck that a cap is held on. The cap is dombed with a steel plat that goes between it and the deck like a shim. So in actuallity this cap is a chamber. This shim plate has four holes(not five). where oil can go through. 3 out of the four holes are clean and clear and that damn fourth hole isn't letting any oil feed the head. What can I do to unclogg it.

I have come to the conclusion that I have installed my headgasket wrong.

I am going to leave this post up for a day and after that I am pulling my head. Thanks for any comments.

 

[Styler91TSIAWD]

I don't know right now what i have done. But tomorrow I think I'm going to pull my head off and find out that I have put the headgasket on upside down and backwards. I don't know what the heck to do.

 

[2-0turbo]

I don't know right now what i have done. But tomorrow I think I'm going to pull my head off and find out that I have put the headgasket on upside down and backwards. I don't know what the heck to do.

Hey, chill for a day. I have my head off my car with that little oil distribution block taken apart too. I'll do a quick check for you tomorrow after work. If you had your head gasket on wrong, I think you'd have other problems by now.

 

[2.4 turbo Hyped]

Awesome information, it just needs a spellcheck before posting next time.

 

[Styler91TSIAWD]

Hey, chill for a day. I have my head off my car with that little oil distribution block taken apart too. I'll do a quick check for you tomorrow after work. If you had your head gasket on wrong, I think you'd have other problems by now.

This is what I was thinking if my head gasket is on upside down or backwards or both then I would have oil and water mixing. I've seen this done before.

 

[1993TalonTsiAWD]

How can you put one on backwards?? When I put mine on it only fit one way. And I checked to see when the was a hole in the gasket, there should be a whole the same size underneth in the block, it just seems very difficult to put it on backwards, unless you didn't know what your were doing.


Derek

 

[2-0turbo]

Okay, of the four holes, 3 are "outlets" to the valvetrain in the head and 1 (closest to the front of the head) is the supply. The supply is the one that is almost 4" deep (the one you think goes all the way to the head/block interface). It actually stops in a galley in the head. If you look right below your thermostat housing, you'll see the galley plug on the head that feeds this. The intersection of these two points is where your coat hanger stops.

I'm not sure I quite understand your post. Are you saying that with the cover off, you can start you car and you get no oil??? How do you know it is plugged??

I think you are fine. Check out what I've shared and see if that helps. Putting the head gasket on wrong (I'm still not sure you can do that) will have nothing to do with feeding oil to this reservoir. It might cause you other problems, but nothing related to this.

 

[Styler91TSIAWD]

You explained it better than I did. Thats exactly what I was trying to say. I pulled that cap off the the oil feed and pulled my timing belt off and my oil feed line does get oil. I just found that out but it does not get the oil flow I think it should get. It is bearly coming out. I pulled the oil filter off and spun the oil pump gear with drill and oil squirted like a super soaker. I reinstalled the oil filter and pulled the cap off and the oil feed hole does not shoot a stream at all. Oil is coming but very slowly. I also finally got oil to come out of my turbo feed line on the side of the head.

 

[kalla]

I have an oil pressure gauge installed in one of the ports on the head where the turbo oil comes from (the hole in the front of the head right around the corner from the turbo oil outlet). I see about 15-20 psi at idle there. During the rebuild when I primed the engine oil came out of the turbo feed hole like gangbangers .. definitely check for obstructions.

 

[2.4 turbo Hyped]

If I were you Id take the oil filter housing apart and clean it out. You may have something blocking the flow.

 

[Styler91TSIAWD]

Wil do thanks for the post.