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Engine Whistle???

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Old Mar 17, 2012 | 12:23 PM
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Engine Whistle???
So about 10 Sec. into the vid you can hear the whistle im talking about, rebuilt the carb. Could it be the base gasket ? It only has one of those thin ones at the base.


 
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Old Mar 17, 2012 | 12:29 PM
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Don't you have a spacer? manifold- thin gasket- spacer - thick base gasket -carb
 
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Old Mar 17, 2012 | 12:52 PM
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Wow, that's a horrible vacuum leak. Make sure the spacer is on in the right orientation as well, there is a bump out on one side that has to match up with a spot on the manifold or there will be a leak.
 
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Old Mar 17, 2012 | 01:14 PM
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I do have a spacer, think my issue is with the single thin gasket at the manifold, hopefully two of the thin gaskets will work.
 
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Old Mar 19, 2012 | 05:54 AM
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Did it start when you put that air cleaner on? I know my buddy put one on his G-van and it whistled wicked. Probably not your problem but that made a pretty horrific hiss.
 
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Old Mar 19, 2012 | 09:09 AM
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No it does that without the filter on also.
 
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Old Mar 19, 2012 | 09:32 AM
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Have you tried spraying carb cleaner or penetrant around the carb, to see if noise stops temporarily.?
 
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Old Mar 20, 2012 | 06:37 PM
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Figured it out.
i had this http://www.autozone.com/autozone/par...4_188089_6635_ at the base, the whistle was coming from where the spacer was letting air in due to the gasket not covering up the whole spacer.
This is what i needed.
http://www.autozone.com/autozone/par...6_188089_1871_
 
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Old Mar 20, 2012 | 06:51 PM
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Usually the carb kits contain 2 different thin gaskets.
Good that the problem is solved.
 
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Old Mar 21, 2012 | 12:41 AM
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I had this happen once, and I had to bump the idle set screw way up. I found out I hadn't blocked off the big vacuum port on the back of the carb!
 
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Old Mar 21, 2012 | 11:28 AM
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My truck did that too..and it was through the carb. The more i gave her gas, the more she whistled, probably vacuum leak within the gasket.
 
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Old Mar 21, 2012 | 10:30 PM
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Spraying carb cleaner around at idle should raise rpms when you hit the leak
 
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