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Old 07-31-2016, 04:59 PM   #1
brihorse
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Join Date: Apr 2016
Location: Grand Ledge, MI
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vacuum line fitting in intake goes into coolant

Attempting to install vacuum fitting for my booster in my intake for my power disc brake conversion. I noticed that if I squeeze the radiator hose, coolant will shoot out the end of the fitting. Is this supposed to happen? I installed the fitting underneath my kick down cable bracket as you can see in the photo.
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Old 07-31-2016, 05:11 PM   #2
trac209
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Re: vacuum line fitting in intake goes into coolant

That goes into the water jacket not for engine vac,install a plug in there. The one behind carb is for brake booster
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Old 07-31-2016, 05:15 PM   #3
brihorse
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Re: vacuum line fitting in intake goes into coolant

Thanks!
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Old 07-31-2016, 05:16 PM   #4
davepl
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Re: vacuum line fitting in intake goes into coolant

That black hose is fine. That silver fitting without a hose is in your coolant passage, not the intake.
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Old 07-31-2016, 10:19 PM   #5
kwmech
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Re: vacuum line fitting in intake goes into coolant

About 30 years ago I was working at a GM dealership, genius in the stall next to me was installing an engine in a medium duty. Yep he crossed the hoses for the Hydra-vac unit and the cooling system. About 6-7 gallons of coolant later, he had a real mess on his hands
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