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HELP!! Coolant lines keep leaking!

Old 05-25-2016, 10:10 PM
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Unhappy HELP!! Coolant lines keep leaking!

Hello all,

Can anyone help me figure out a cheap way to fix my leaking coolant hose problem. I have a heat shield over my turbo, but my heater coolant lines keep melting and coolant goes everywhere. I keep buying hoses and replacing them but was wondering if there was a permanent way to remedy this issue. I was thinking Hood louvers would help, but don't want to buy them if you guys think it won't help. If there's another thread with this information please let me know!!! I'm a total noob when it comes to Miatas...

Thanks!!


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Old 05-26-2016, 11:37 AM
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Put silicone hoses and isolate them.
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Old 05-26-2016, 11:39 AM
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/\ that
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Old 05-26-2016, 11:50 AM
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Old 05-30-2016, 01:53 PM
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Thanks everyone!
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Old 05-31-2016, 03:53 PM
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My hoses go to steel tubes right up by the bend so they aren't rubber as they pass the exhaust, but my mixing manifold hose goes under the brake master and stays away from the exhaust in that way also.
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Old 05-31-2016, 03:56 PM
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You have the FM heat shield and heat reflective fiberglass wrap and you're still melting the heater core hoses? There's something unusual going on, because that's not the normal case IME.

What are your EGTs?

--Ian
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Old 05-31-2016, 05:31 PM
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Could be the CAS is pissing oil all over the hoses.
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Old 05-31-2016, 06:26 PM
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Severely retarded timing.
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Old 05-31-2016, 06:34 PM
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You crushed the heater core fittings by pulling/twisting the hoses off the nipples. Remove the rubber hoses, straighten out your heater core fittings (hammer sockets into them in progressively larger sizes to get them semi-round again), then install silicone heater hoses.
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Old 05-31-2016, 07:48 PM
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Originally Posted by Savington View Post
You crushed the heater core fittings by pulling/twisting the hoses off the nipples. Remove the rubber hoses, straighten out your heater core fittings (hammer sockets into them in progressively larger sizes to get them semi-round again), then install silicone heater hoses.
I used a tapered brass punch, which worked really well:
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Old 06-05-2016, 08:13 PM
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Thanks for all the feedback guys! I really appreciate it! I'll let you know how it turns out!
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