What is the average lifespan of your turbo's. my 50 trim has been on the car for 35,000 miles and i changed the oil every 2500-3000 miles with fuly synthetic 0w-40 mobil1 oil. anything im doing wrong to make the turbo leak oil? the intake side housing is black on the inside with oil resedue!
I guess its gonna have to be rebuilt. What are the costs and turn around times for doing so. it has been smoking for 5 days now and there is no in-and-out shaft play but like 1mm vertical shaft play. any info woiuld be great!
you mean the intake side of the compressor? do you have your valve cover breather connected to the intake pipe like your supposed to? if so, thats where your oil is coming from. 90% of all the failed turbos i've ever seen the oil leaked through the turbine side, not the compressor. sounds like your turbo is fine to me? and in and out shaft play? if there's no shaft play, then there's little chance that the turbo is toast. OE turbos usually are meant to stay on the road for between 75000 and 200000+ miles, depending on the manufacturer, engine, maintenance, and such.
A turbo will last forever as long as it gets sufficient oil and clean oil, and is not overheated or hot shut downs. Turbos don't have parts that are designed to wear.
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yes, the compressor side is covered in oil. and no the breather was not connected to the intake either. and yes, there is no excessive shaft play. ben, what is the turn around time for you guys to rebuild a standard 50 trim and what are the prices?
A typical rebuild for a journal bearing 50-trim starts at $400. The price may go up depending on if the turbo needs a new shaft or compressor wheel.
If you do not have any shaft play, there most likely is not anything wrong with the turbo. Oil coming out the compressor is a sign that there is some sort of drainage problem.
Check that the drain isn't leaking at the turbo. That can actually get sucked into the crevices in the cover if the cover seal is bad and look like it's leaking from there. Real tricky to pinpoint, but true.
Make sure you have a good PCV and it's hooked to the intake manifold. Run the breather to the turbo intake. Make sure there's no restrictions in the turbo drain or any of the PCV system lines. That's the best advice I can give. You can check for excessive blowby, as that may cause issues also.
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checked the oil return line and there is no blockage in the bottom of the turbo, the fitting, the tube, or where it connects at the bottom. so i guess its the seal?
well what should i check and how should i check it? the drain tube is more than big enough to drain the oil going into the turbo.
Is your driver's side breather rerouted back into the intake, or is it vented to atmosphere. If it is rerouted into your intake, that could be what is causing oil to appear in the compressor inlet/outlet.
If it is vented to atmosphere, I would:
1. Check your drain and make sure it isn't kinked or has any obstructions in any way
2. Make sure your PCV valve is functioning properly. If you have not replaced it in awhile I suggest replacing it with a new factory one.
3. If you have a catch can, for the time being bypass it and run the PCV directly to the top of the intake manifold
I would do the above and see if you see any improvement.
Is your driver's side breather rerouted back into the intake, or is it vented to atmosphere. If it is rerouted into your intake, that could be what is causing oil to appear in the compressor inlet/outlet.
If it is vented to atmosphere, I would:
1. Check your drain and make sure it isn't kinked or has any obstructions in any way
2. Make sure your PCV valve is functioning properly. If you have not replaced it in awhile I suggest replacing it with a new factory one.
3. If you have a catch can, for the time being bypass it and run the PCV directly to the top of the intake manifold
I would do the above and see if you see any improvement.
i got rid of my catch can 45000 miles ago and the car has ran flawlessly since
best advice is to spend the 9 bux every 3 oil changes and replace the pcv valve.
checked the oil return line and there is no blockage in the bottom of the turbo, the fitting, the tube, or where it connects at the bottom. so i guess its the seal?
It could be, but a visual check at least is needed. The gasket between the turbo and drain flange can seep and if the compressor cover seal is bad, allowing the oil to get sucked in, it will mimic what you think is a compressor seal leak.
It's only something to check out after all the normal things have been checked and tried, as it's not something that happens often.
Replacement of the PCV valve, removal of the catch can, routing the valve cover vent to the turbo intake tube are all good places to start. Clean up all the oil and try it out, then move on to other tests if it doesn't work. Remember AGP's recommendation of a minimum of .6xx" ID at any point in the oil drain.
i shook the pcv and it moves easily, emptied the catch can about a month ago (big greddy catch can), and the vent on the vavle cover has been attached to a breather filter, not to the intake so no oil came from that. i will try to run the pcv straight to the throttle body to see if that helps. also, the drain tube is more than big enough! I did a visual check on all the things i listed in the last post. will try the pcv reroute and see if that helps! will post up in the beginning of next week since im leaveing to go out of town tonight.
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average life span of turbos?
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