Vacuum leak question

89psychobird

Registered User
Would a leak at the SC collar nut cause a loss of 5 in.hg.?
My SC idles at 15 in.hg. of vacuum. I have been trying to find this leak for over a month now, with no luck.
 
it could...If you don;t have a leak detector a quick way I used to use to find out on the IC tubes was to wrap a good snug piece of duct tape aound the collers seams...It works long enough to tell if it was in fact your leak...;)
 
Another way is to get a length of unused fuel line.....

Stick one end in your ear and probe around with the other end.....

I have found many vacuum leaks with this method......
 
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