Finding vacuum leaks

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m (Propane method: tidy up a bit)
m
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===Note===
 
===Note===
You may also use engine startup fluid instead, as it is not caustic like carb cleaner, and does not leave residue.
+
You may also use engine starting fluid instead, as it does not leave residue.
  
  
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If the above methods fail to locate an external leak, the following procedure may be used to determine an internal leak.
 
If the above methods fail to locate an external leak, the following procedure may be used to determine an internal leak.
 
#Disconnect/remove the primary wire between the coil and distributor.
 
#Disconnect/remove the primary wire between the coil and distributor.
#Adjust the idle screw so the throttle plate in the carburetor is completly closed.
+
#Adjust the idle screw so the throttle plate in the carburetor is completely closed.
 
#Remove PCV, breathers, and all vacuum ports on carburetor/manifold and seal openings with plugs/tape.
 
#Remove PCV, breathers, and all vacuum ports on carburetor/manifold and seal openings with plugs/tape.
 
#Connect vacuum gauge to a manifold vacuum source.
 
#Connect vacuum gauge to a manifold vacuum source.
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[[Category:Engine]]
 
[[Category:Engine]]
 +
[[Category:Carburetors]]

Revision as of 13:37, 15 March 2012

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