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ZERO MPG
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Discussion Starter #1 (Edited)
This may sound crazy but it's me:poke: I saw this on youtube so I thought I would try and it works. I didn't find any leaks but the smoke was coming out of my carb. so I covered it up as good as I could to build up a little pressure. Just keep blowing smoke and looking for the smoke coming out and you found your leak $2.00 why not try.



 

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When I was a mechanic at the chevy dealer in corpus christi, we got an Audi 5000 in in the used car dept. It's power windows didn't work, and I was told to find the problem and fix it. The PW on one of those are VACUMN!!!! I ended up pulling all the door panels off and sucking on all of the individual lines looking for the leak. The service manager told one of the other mechanics to leave me alone for awhile, cause I was giving the Audi a bj. LOL Turned out to be a cracked accumulator in the dash, behind the control head.

:dontknow:
 

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ZERO MPG
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Discussion Starter #5
Seems like a lot of issues start with vacuum leaks so how about some input on how to find them? I heard starter fluid but you have a 50/50 chance of burning you EL Camino to the ground. Vacuum gauge:nanawrench::nanawrench: but that doesn't find the leak so let hear how you find them so others can benefit from your knowledge. Propane works the same as starter fluid and it's safe. Use a propane torch and run it around all the seals and carb. base.
 

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[/QUOTE]


hkdup was so tired of all the BS, he decided to end it all by breathing the fumes from his elkie's exhaust. However, like the typical taxifornian, he didn't quite get it right.

:texas:
 

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ZERO MPG
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Discussion Starter #7

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ZERO MPG
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Discussion Starter #9
HKDUP87,
You may have already seen this article, but it shows you how a vacuum gauge can point to which SYSTEM has the vacuum leak. You're right, it doesn't pinpoint where it is, but it's certainly easier to find it by searching through the lines of just one system. Hope this is helpful??

Courtesy of MichaelJ
http://www.gregsengine.com/using-a-vacuum-gauge.html

http://www.freeasestudyguides.com/engine-vacuum-test-a8.html

Got it pegged on my front screen icon for future ref. for people asking. It's dead on first start finding issues. If it's not this it's grounds!!!!! over and over you hear it in 90% of the post :beer:
 

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I was told that you find vacuum leaks by spraying WD40 (or something equally combustible) at the suspected area. If your RPMs remain the same, no leak. If they go up, you've got a vacuum leak.
 

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ZERO MPG
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Discussion Starter #11
HKDUP87,
You may have already seen this article, but it shows you how a vacuum gauge can point to which SYSTEM has the vacuum leak. You're right, it doesn't pinpoint where it is, but it's certainly easier to find it by searching through the lines of just one system. Hope this is helpful??

Courtesy of MichaelJ
http://www.gregsengine.com/using-a-vacuum-gauge.html

http://www.freeasestudyguides.com/engine-vacuum-test-a8.html

Here's a better one showing the needle movement for finding your problem. This is really nice.


http://www.secondchancegarage.com/public/186.cfm
 
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I use WD40 to trace leaks. The only thing about that is you have to be very focused because the smallest leak will almost never be heard.
 

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I was told that you find vacuum leaks by spraying WD40 (or something equally combustible) at the suspected area. If your RPMs remain the same, no leak. If they go up, you've got a vacuum leak.

My buddy taught me trick to use brake cleaner in a spray can. The stuff does what WD40 does for locating vacuum leaks, but it evaporates very quick.
 

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spray soapy water around with the motor running, around the intake , base of carb, ect works as well as carb cleaneror wd,ect but is not flammable,when the idle changes you have found your leak.:smileyb:
 

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ZERO MPG
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Discussion Starter #18
i saw this on your other thread haha!

actually a smart idea haha.
It worked no leaks but you could see the smoke coming out the air cleaner intake so I plugged that and blew in more smoke and couldn't find any leaks. That's good my problem is in the carb.
 
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