Water Lines to and from the Throttle Body - Miata Forumz - Mazda Miata Chat Forums
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NB (1998-2005) NB Miata discussion within. In 1998, Mazda released the second-generation MX-5, production code NB, for the 1999 model year.

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Old 04-03-2012, 02:21 PM   #1  
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Default Water Lines to and from the Throttle Body

I'm curious to find out why the two coolant lines enter and exit the throttle body. One small line comes in from the oil filter base and the second line goes to the thermostat housing. Both lines are located just at the base of the throttle body. What are they for?

Thanks in advance,
Roy
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Old 04-03-2012, 02:26 PM   #2  
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to prevent frosting in winter timez.
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Old 04-03-2012, 02:57 PM   #3  
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Quote:
Originally Posted by RoyzMG View Post
I'm curious to find out why the two coolant lines enter and exit the throttle body. One small line comes in from the oil filter base and the second line goes to the thermostat housing. Both lines are located just at the base of the throttle body. What are they for?

Thanks in advance,
Roy
for cold winter months, it helps to stop the throttle body from freezing. I have a hardtime believing it is required, but its possible I guess.
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Old 04-03-2012, 03:12 PM   #4  
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Thanks Brain and Joe,
I never would have quessed living here in Calif.

Roy
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Old 04-04-2012, 01:27 PM   #5  
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A speed shop has told me to remove them if I never drive the car in cold weather to drop my temps at the track. I haven't had the ***** to do it.
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Old 04-04-2012, 01:35 PM   #6  
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i mean. i havent had them installed for almost 6 years now.
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Old 04-04-2012, 01:46 PM   #7  
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What's the coldest weather you drive your Miata in Scott? Maybe, I'll man up.
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Old 04-04-2012, 01:51 PM   #8  
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I've started it in 18f before.




coldest i honestly drive it in? probably 32-40F.
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Old 04-04-2012, 01:56 PM   #9  
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OK, I'm going to man up then. Mine never sees snow and the R1Rs don't like it under 40 degrees anyway.
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Old 04-04-2012, 02:19 PM   #10  
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If you remove them don't you lose the cooling capability at the oil filter? Not sure how much that really helps the oil temp though.

Roy
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