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Registered
Join Date: Nov 2007
Posts: 9
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How to test for vac. leak ???
On a SC, what would be the best way to test for a vacuum leak. Flood engine parts with propane, acetylene, or carb. cleaner? Pressurize the intake with air and then spray everything down with soapy water? Or - I have heard of using dry ice under pressure????
I don't have access to a fog machine. |
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11-29-2007, 11:46 AM
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1984-911 M491
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The best way... smoke test.
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11-29-2007, 11:47 AM
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Registered
Join Date: May 2006
Location: sacramento, ca
Posts: 98
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Use propane and listen for rpm changes will be your safest way with out a smoke machine. carb spray can be dangerous (fire), though I have been told that maybe berrymans makes a carb spray that is not flammable.
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1985 911 "turbo look" 2008 Foose F150 (free truck) 2002 Mercedes Benz S55 |
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11-29-2007, 11:49 AM
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Autodidactic user
Join Date: May 2003
Location: Summerfield, NC
Posts: 1,298
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Here's the best guide I know: Engine Vacuum Leaks By Larry Carley. Scroll about half-way through the article until you get to a section called: "ENGINE VACUUM LEAK DETECTION."
You might want to bookmark this page: Carley Library of Automotive Repair Articles. The author has written a lot of very useful stuff!
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Please help the MFI community keep the Ultimate MFI resources thread and the Mechanical fuel injection resource index up to date. Send me a PM and I'll add your materials and suggestions.  1973 911E Targa (MFI) |
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11-29-2007, 12:14 PM
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sub'd
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Shane - 1984 928S |
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11-29-2007, 12:25 PM
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Sold
Sooby
