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Vacuum Leak? (Read 2279 times)
jcschlundt
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Vacuum Leak?
03/25/10 at 9:50pm
 
My engine will stay reved at a higher idle rpm after I blurp the gas sometimes. (it will also slowly climb in rpm until I kill it).  Throddle isn't stuck, so I'm guessing theres a vacuum leak?  Any body have any insight or experience with this?
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miniguru27
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Re: Vacuum Leak?
Reply #1 - 03/25/10 at 11:03pm
 
Try checking the base plate of the carb to make sure its not warped. Then I would also check the butterflys on the carb to make sure none of those are hanging up.
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jp80
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Re: Vacuum Leak?
Reply #2 - 03/31/10 at 4:17pm
 
It's most definetly your secondary butterfly hanging up. carb cleaner will help, spray it on the shaft
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3racer
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Re: Vacuum Leak?
Reply #3 - 03/31/10 at 7:22pm
 
I would take some carb cleaner and spray along the side of the intake.  If it revs up then you have a leak.  JMO
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jp80
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Re: Vacuum Leak?
Reply #4 - 03/31/10 at 11:06pm
 
I only say throttle shaft gumming up because I've had the same problem. If it was anything else it would not come off of the high idle.. just warm up the car tap the throttle and the idle will be high when you let the throttle off,then grab the secondary throttle shaft and  turn it closed, it will and the idle will be normal. I found out you have to stay on keeping that shaft clean on a weely basis. hope this helps..
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jcschlundt
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Re: Vacuum Leak?
Reply #5 - 04/01/10 at 8:32am
 
Thanks for everybodys help.  The butterfly's was the issue.  The primary and secondary shafts were hanging up.  Thank you
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