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-   -   FMII water leak (https://www.miataturbo.net/prefabbed-turbo-kits-3/fmii-water-leak-74508/)

Lee04vr 08-18-2013 01:50 PM

FMII water leak
 
The silicone hose that came with the kit has failed due to heat on the water outlet(inside water line). FM says these hoses will need replaced every few years and its been almost 2 years since the install. I have just did a quick internet search high temp silicone hose but did not find really what I was looking for, I was wandering what brands of hose other people are using and to what success, has anyone found some magic water hose that almost never fails?

curly 08-18-2013 02:04 PM

Stainless steel with properly crimped on fittings threaded on to AN fittings.

Lee04vr 08-18-2013 02:20 PM

If I could find some banjo fittings that had a foot of hard line that I could bend to fit, that would get the hoses out of the super high heat area.

hustler 08-18-2013 05:25 PM


Originally Posted by Lee04vr (Post 1044781)
If I could find some banjo fittings that had a foot of hard line that I could bend to fit, that would get the hoses out of the super high heat area.

Typing to yourself?

Lee04vr 08-18-2013 05:42 PM

Yeah I guess, unless you have seen such a product. So far my search of the 10% of the internet thats not porn or gambling hasn't turned up shit as far as banjo fittings with lines that I could bend to fit.

I think I'll just replace the hoses with the same silicone that FM supplied, I have feeling this motor is coming out to get built in next year or two.

marsien 08-18-2013 05:54 PM

try to find an hydraulic shop near your town, i got the same fail last week.

fooger03 08-19-2013 11:18 AM

When you get impatient and decide to just throw money at it:
Flyin' Miata : Turbochargers : Parts and upgrades : Hard lines for water and oil lines

RotorNutFD3S 08-19-2013 11:40 AM

3 Attachment(s)
I had the same issues with my NA and decided to stop wasting time replacing the soft lines and made my own braided lines. The cost was less than the FM or BEGi offerings. Basic rundown here: https://www.miataturbo.net/diy-turbo...t-lines-23366/

This info is from 2008, but the p/n's should still all be the same because I made a local member the same set of lines from this info about a year ago.

*edit* I just noticed you have an MSM, so you have and should use the feed port on the side of the block under the turbo. You can alter the above plan like I did for my '95 and use that port and then you'd use one tube fitting at the nipple on the hardpipe running back to the mixing manifold.

So instead of getting two tube fittings, get one and then order an M12x1.25 fitting to fit the block (p/n 991945 at the bottom of their page): http://www.anplumbing.com/Adapters/Metric-25.html Then you'll just need a male/female 6AN 90* elbow. (See bottom photo below)

Tube fitting installed (Note, the bottom part of the fitting (the red section) actually had to be cut down just a bit to fit securely. Test fitting will show how much):

https://www.miataturbo.net/attachmen...ine=1376927606

All hooked up (no interference with the belts):

https://www.miataturbo.net/attachmen...ine=1376927606

Hooked up at the block:

https://www.miataturbo.net/attachmen...ine=1376927606

rwyatt365 08-19-2013 11:48 AM

FWIW - I had the same thing happen. I found this kit, bought it and haven't had another leak in 6 months (knock on wood).

Lee04vr 08-19-2013 12:05 PM

The FM hard lines have directly fit the MSM setup however they can be made to, I'm not going to buy the hard lines this time. I like the stainless steel braided hose to barb fitting but I don't if I would trust that brand if they high quality I think that they would keep the the silicone hose far enough away from the manifold and turbo.

As is the silicone lines on my car lasted right on 2 years before the water outlet hose started to leak, that being said if you get a slow water leak from the turbo area replace the lines ASAP if had let it go that hose would have burst while driving down the road.

2000wrx 07-07-2014 08:15 PM

Same leak here as well. I just picked up an FMII LINK miata and its great to just stumble across this fix... I love this site, great info. Thanks!!


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