Turbo install gone wrong...

[ypnas777]

Before I begin this post I would like to give you guys some background on my car. It is a 1998 Eclipse GS-T with the stock 7 bolt with 73k miles. The car ran very strong and there aren't any signs of a spun bearing or the turbo being bad, etc. No knocking from the motor or abnormal shaft play on the turbo....

I installed my fp3052 today and everything went perfectly smooth until I was in the process of turning over the motor without the oil feed line(from the head) connected to the turbo to make sure oil has reached the oil line before I connect the line to the turboI turned over the motor for a total of about 5 minutes in 30sec intervals and not a drop of oil came out of the feed line.

I then called a friend and he was nice enough to take some time off of his saturday afternoon and help me over the phone. He suggested I remove the spark plugs so the motor will turn quicker so I did and still not a drop of oil. I Then completely removed the turbo oil feed line filter assembly from the head and it was completely dry.

I spoke to my friend once again and he suggested I connect the feed line to the oil filter housing and see if I get oil from there. I do so and only drops of oil come out from there. The oil never even made it past the turbo oil filter assembly.

Oh and I am 100% sure the motor has plenty of oil.....

I have no idea what could be the cause of this except maybe a weak oil pump :shrug: . Again, the motor nor the turbo showed no signs whatsoever of being starved of oil.

 

[dsmpokolm]

There was nothing blocking the line? Would oil Pressure have anything to do with your problem?

 

[TwoLiterLaser]

I don't think the engine can make enough oil pressure just from cranking to be able to supply that line with any amount of flow. The way I was taught to prime a turbo was to hold the fins of the compressor side of the turbo with something that will not damage the fins then start the car and continue to hold the fins for about five minutes or so to make sure oil has made it into the turbo and completely through.

 

[ypnas777]

There was nothing blocking the line? Would oil Pressure have anything to do with your problem?

I repeatedly blew air through the line and it was not clogged. The oil just never reached the line. It was not coming out of either the head or the oil filter housing. I have no idea what is wrong....

 

[ypnas777]

I don't think the engine can make enough oil pressure just from cranking to be able to supply that line with any amount of flow. The way I was taught to prime a turbo was to hold the fins of the compressor side of the turbo with something that will not damage the fins then start the car and continue to hold the fins for about five minutes or so to make sure oil has made it into the turbo and completely through.

I think there should be enough oil pressure to at least get some decent oil in the oil filter housing. I have always been told that oil should reach the head/oil filter housing by cranking.

 

[TwoLiterLaser]

You are probably still using a MAF aren't you? If you are then you can't prime that fp like I said anyway. What RPM does the engine crank at? Have you ever seen a 4g63 with a numerical oil pressure gauge under crank? I agree you SHOULD be able to draw some pressure from that filter housing, but apparently you aren't. Good luck.

 

[ypnas777]

You are probably still using a MAF aren't you? If you are then you can't prime that fp like I said anyway. What RPM does the engine crank at? Have you ever seen a 4g63 with a numerical oil pressure gauge under crank? I agree you SHOULD be able to draw some pressure from that filter housing, but apparently you aren't. Good luck.

I am still using the stock MAS. I do not know at what rpm the engine cranks at. Is it possible the oil pump lost its prime even though it was just a few hours?

 

[TwoLiterLaser]

I don't know. I would make the car so that you can start it and then do so just so you can be sure the system is functioning properly. Then give it a go at hooking up the turbo again.