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Old 08-18-2013, 02:50 PM   #1
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Default 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?
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Old 08-18-2013, 03:04 PM   #2
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Stainless steel with properly crimped on fittings threaded on to AN fittings.
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Old 08-18-2013, 03:20 PM   #3
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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.
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Old 08-18-2013, 06:25 PM   #4
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Quote:
Originally Posted by Lee04vr View Post
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?
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Old 08-18-2013, 06:42 PM   #5
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Yeah I guess, unless you have seen such a product. So far my search of the 10% of the internet thats not **** or gambling hasn't turned up **** 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.

Last edited by Lee04vr; 08-18-2013 at 09:58 PM.
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Old 08-18-2013, 06:54 PM   #6
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try to find an hydraulic shop near your town, i got the same fail last week.
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Old 08-19-2013, 12:18 PM   #7
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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
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Old 08-19-2013, 12:40 PM   #8
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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):



All hooked up (no interference with the belts):



Hooked up at the block:

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Last edited by RotorNutFD3S; 08-19-2013 at 12:58 PM.
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Old 08-19-2013, 12:48 PM   #9
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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).
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Old 08-19-2013, 01:05 PM   #10
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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.
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Old 07-07-2014, 09:15 PM   #11
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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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