Oil leak Turbo Return Hose Mx5 SP

Discussion regarding Turbocharged and supercharged MX-5s

Moderators: timk, Stu, zombie, The American, Lokiel, -alex, StanTheMan, greenMachine, ManiacLachy, Daffy, Sean

User avatar
roshmx5
Fast Driver
Posts: 157
Joined: Tue Sep 20, 2016 10:17 pm
Vehicle: NB SP

Oil leak Turbo Return Hose Mx5 SP

Postby roshmx5 » Sun Feb 26, 2017 6:41 pm

I noticed today oil on my Turbo Return hose. I read someone said weeping is a problem. Should I replace hose or is this a common issue. I have not seen oil dripping it just has oil on hose.
Also tried to remove oil filter could not move it to get it off. It's in the worst spot ever. How do you remove it.
Mazda MX5 SP

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Re: Oil leak Turbo Return Hose Mx5 SP

Postby smy0003 » Sun Feb 26, 2017 6:46 pm

Oil filter can be accessed by laying on your back with the drivers wheel off, reaching up in to the wheel well.
Hopefully someone more knowledgable than me can give you the ID of the SP oil return hose.
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

speed
Speed Racer
Posts: 3471
Joined: Sun Jan 19, 2014 9:52 am
Vehicle: NA6
Location: Lugarno, Sydney

Re: RE: Oil leak Turbo Return Hose Mx5 SP

Postby speed » Sun Feb 26, 2017 6:47 pm

roshmx5 wrote:Also tried to remove oil filter could not move it to get it off. It's in the worst spot ever. How do you remove it.


That's why people relocate there filters.
I just remove the manifold brace and get to the filter from under the car.

Sent from my GT-I9506 using Tapatalk
NA6 turbo - 140kw atw - not the most powerful but so much fun :D

omx500
Driver
Posts: 92
Joined: Wed Jan 07, 2015 8:17 am
Vehicle: NA8

Re: Oil leak Turbo Return Hose Mx5 SP

Postby omx500 » Fri Mar 03, 2017 8:35 pm

roshmx5 wrote: It's in the worst spot ever. How do you remove it.


I'm sure they are easier to get at on LHD cars too.

bmchi
Driver
Posts: 54
Joined: Wed Feb 26, 2014 2:12 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bmchi » Mon Mar 20, 2017 2:03 pm

having the same problem on my sp! anyone figured a remedy?

I was thinking of replacing with a braided SS line rather than replace with another rubber hose which would probably and eventually start weeping again but not too sure how straight forward it is with the current fixings.

User avatar
roshmx5
Fast Driver
Posts: 157
Joined: Tue Sep 20, 2016 10:17 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby roshmx5 » Mon Mar 20, 2017 6:21 pm

My mechanic made up a hose with an elbow piece in it. The issue is the hose kinks and goes hard and brittle. Well mine did anyway. Garret Turbo can make us a line for you like the factory one. Happy with what my mechanic did.
Mazda MX5 SP

bmchi
Driver
Posts: 54
Joined: Wed Feb 26, 2014 2:12 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bmchi » Mon Mar 20, 2017 7:14 pm

really! custom fab for such a small piece of hose....

surely there is some of the shelf solution for a replacement hose? someone must know?

User avatar
bigdog
King of the kennel
Posts: 2233
Joined: Wed May 25, 2005 3:07 pm
Vehicle: NB SP
Location: Blue Mountains
Contact:

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bigdog » Mon Mar 20, 2017 10:31 pm

Mine has a fabricated hard line using an EGR pipe and mount bolted to the sump with a gasket. This has been foolproof for the past 100,000km. The weakest point on the stock setup is the barb threaded into the sump. The sump wall is thin, so there are only a couple of threads for the barb to seat on, and they invariably leak. Hardened and kinked rubber hoses are the next problem. Cheapest answer is to replace the hardened hose every 50,000km or so, otherwise a hitemp braided hose might help, but it would need to be clamped at both ends, which tends to be a problem with braided hose.
Image
Marvin - '02 Silver SP - BD, PSS9, Guru, Build #62 Cardomain

User avatar
NitroDann
Forum sponsor
Posts: 10280
Joined: Thu Nov 05, 2009 12:10 pm
Vehicle: NA6
Location: Newcastle NSW
Contact:

Re: Oil leak Turbo Return Hose Mx5 SP

Postby NitroDann » Tue Mar 21, 2017 9:49 am

I use a tapered brass threaded fitting into the sump with a quality industrial pipe thread sealant which is a high strength threadlock.

As for the hose I use a regular '100 series' rubber hose from aeroflow/raceworks/speedflow etc. This is not to be confused with heater hose, its oil and pressure rated.

And on top of that I use a fibreglass heat sleeve. They last a very long time like this including with track use.

Braided hoses are just the same hose with fancy fittings and a steel wrap, they are still heat and kink affected like any other rubber hose.

Dann
http://www.NitroDann.com

speed wrote:If I was to do it again, I wouldn't even consider the supercharger.

bmchi
Driver
Posts: 54
Joined: Wed Feb 26, 2014 2:12 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bmchi » Wed Mar 22, 2017 9:15 pm

Going to try and rip it out later on this week had a quick tug at it before seems to be stuck onto the fixture to the sump. Is it just the hose clamps holding it in place?

Will take to my local hose specialist and see what they can do from them

bmchi
Driver
Posts: 54
Joined: Wed Feb 26, 2014 2:12 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bmchi » Tue Apr 04, 2017 3:55 pm

Hey guy,

So the hose was so buggered and brittle i had to cut it to getit off, went down to the local hose specialist/ hydraulics shop and they sorted me with some high temp hose suitable for oil.

Doing well so far and probably ur best bet for anyone else with this issue as oem replacement hose is not available.

The hose is ryco rpq610
http://www.ryco.com.au/resources/hydrau ... html#p=119

:beer: :beer: :lol:

User avatar
davekmoore
Speed Racer
Posts: 4681
Joined: Thu Apr 30, 2009 1:53 am
Vehicle: NC
Location: Esprick, UK

Re: Oil leak Turbo Return Hose Mx5 SP

Postby davekmoore » Sun Apr 16, 2017 6:07 pm

It's good to have this type of issue sorted before you rock up for a day at the track. You probable don't want to know how I know.
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)

bmchi
Driver
Posts: 54
Joined: Wed Feb 26, 2014 2:12 pm
Vehicle: NB SP

Re: Oil leak Turbo Return Hose Mx5 SP

Postby bmchi » Mon Apr 24, 2017 7:04 pm

I'm guessing you weren't so popular at the track that day :? :shock:


Return to “MX5 Forced induction (Turbo/Supercharger)”

Who is online

Users browsing this forum: No registered users and 203 guests