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Coolant lines to intake and TB

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Old Oct 20, 2017 | 10:56 PM
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Default Coolant lines to intake and TB

My '91 is generally a track car and good weather car. I'm working on simplifying things under the hood while also installing MS and my Rotrex.

Can I remove / cap off the small coolant lines that run through the intake manifold and throttle body?
Old Oct 21, 2017 | 01:18 AM
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Never been done. Ever. Your TB will freeze immediately and the oil won't flow. Doubtful the car will start.
Old Oct 21, 2017 | 07:23 AM
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I'm afraid I will need pictures to make an assessment.
Old Oct 21, 2017 | 08:34 AM
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Originally Posted by farpolemiddle
Never been done. Ever. Your TB will freeze immediately and the oil won't flow. Doubtful the car will start.
Great! It will work perfectly then.
Old Oct 21, 2017 | 09:43 AM
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On 1.8s the other end of that coolant line runs to the oil cooler/warmer, I'm assuming it's the same on 1.6s. Unless you've got a separate oil cooler you probably want to leave that section. You can just bypass the throttle body in/out on the throttle body and leave the rest.
Old Oct 21, 2017 | 12:33 PM
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Originally Posted by pdexta
On 1.8s the other end of that coolant line runs to the oil cooler/warmer, I'm assuming it's the same on 1.6s. Unless you've got a separate oil cooler you probably want to leave that section. You can just bypass the throttle body in/out on the throttle body and leave the rest.
the 1.6 doesn't have the oil cooler / warmer. I do have an oil cooler added in.

I was worried about idle valve function but I don't see how that will be an issue.
Old Oct 21, 2017 | 01:48 PM
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Originally Posted by sicklyscott
the 1.6 doesn't have the oil cooler / warmer. I do have an oil cooler added in.

I was worried about idle valve function but I don't see how that will be an issue.

The wax pellet air valve will no longer work, or at least take much longer to close. The IACV will be unaffected.




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