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Are you 100% positive it's leaking from that return hose? It could very well be seeping from the oil feed line on top of the turbos then leaking down and accumulating on that hose. Check the banjo bolt on top of the turbo for any oil moisture around that bolt and crush washer. This banjo bolt is located on pipe "A" directly above the primary turbo in the diagram posted above. That metal pipe you pictured is a drain pipe that isn't under pressure.
Did you just install the turbos or did you have these installed for a while and the leak suddenly happened?
the engine was rebuilt 800 miles ago. The leak happened after 800 miles of use.
I went ahead and bot the proper tools and was easily able to get at that those bolts i was having trouble with. They were tight. I even backed off and retightened. I can also see that there was in fact a gasket there. It still leaked. I had a great light down there and started to think perhaps it wasnt leaking from the return. I couldnt find a different area that it could be leaking from.
I think what you are saying could be right. Where can I see this "banjo bolt". Do i look from the top of the car? Do I need to remove anything to see it?
There does seem like too much oil leaking for it to be a return line.
It'll be on the other side of the turbo so look from the top, you might have to remove the intake and intercooler piping. Look for the tube below the turbo in this picture, that's the oil feed line, there are 4 cooper washers that might be old and need to be replace.
Copper crush washers typically don't leak, but the banjo bolts could be loose. Check to make sure they are tight. I would first check the feed connection to make sure that is tight. (it's the circled A in the diagram I attached in post 21)
All the feeds may be a chore to get to though. If you are taking it somewhere not that far, and the leak is not gushing, you may be ok driving it as is. Just don't get it into boost.
Copper crush washers typically don't leak, but the banjo bolts could be loose. Check to make sure they are tight. I would first check the feed connection to make sure that is tight. (it's the circled A in the diagram I attached in post 21)
All the feeds may be a chore to get to though. If you are taking it somewhere not that far, and the leak is not gushing, you may be ok driving it as is. Just don't get it into boost.
does boost "call" for more oil. I think it leaks whether i go into boost or not and it is leaking at a good clip. i will inspect the banjo bolt tonight when i get home.
when in boost you will likely have some pressure in the crankcase, more if the engine was built loosely which will still cause even a return line to act like a pressure line.
oil pressure also rises with RPMs, so if its the feed line then it may not be leaking at low RPMs but moreso when driving.
when in boost you will likely have some pressure in the crankcase, more if the engine was built loosely which will still cause even a return line to act like a pressure line.
oil pressure also rises with RPMs, so if its the feed line then it may not be leaking at low RPMs but moreso when driving.
that is the pressure line, it sees about 40-60psi of oil pressure. the one facing the bottom of the car with the accordion is the return line and will only see crankcase pressure.
that is the pressure line, it sees about 40-60psi of oil pressure. the one facing the bottom of the car with the accordion is the return line and will only see crankcase pressure.
Got it. We (toms insightful guess) were checking to see if leaking from the feed line then dripping down the return line bc the return was snug and has the gasket. But I guess it is the return.
