Oil feed line dripping

2007 mazdaspeed 3
167,000

question so my oil feed line was dripping oil from the turbo to the block replace oil feed line on start up same problem started dripping I’m not seeing any oil consumption turbo has less than 10k miles on it.



Currently running
Cst4, corksport stage 2 intake, pcv plate, egr delete kit, cx racing front mount turbo xs complete exhaust and ngk spark plugs fully tuned by Greek tune.

 

Are you dripping oil at the turbo or at the block? I am assuming you are using the OEM hardline?

Did you replace the copper washers on the banjo fittings? Did you tighten them to the torque spec in the FSM?

 

yeah it’s dripping at the turbo and yes I bought another oem hard line, yeah they are all torque specs from corksport.

 

Have you replaced the crush washers (I think there are some) as well as really cleaned the mating interfaces?

 

I will give this a go and report back but the block and turbo mating surfaces were cleaned very well.

 

Yes this exactly, new crush washers on the banjo fitting.

 

I had the same issue after installing a CST4, oil dripping onto the downpipe. The tapped holes in the turbo are not deep enough to accommodate the stock bolts on the oil return line and create a tight enough seal to prevent leaking. Not sure why CorkSport has never fixed this. I added additional crush washers for a tighter fit and that fixed the issue.

 

If you're having this issue please do contact corksport directly to let them know.

Does it say anything in the install instructions about bolts etc for the corksport turbo? I haven't read it myself

 

Didn't the OP claim it was his oil feed line dripping and not the return line?

 

He did, not implausible that it's the same issue and worth investigating