 Has anyone used a smoke tester to test for vacuum leaks?, I need to build one to work on an Explorer |
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| cary |
 Dec 28 2012, 06:52 AM
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#1
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Advanced Member  Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest 
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I going to be building a DIY smoke tester to find a vacuum leak on my sons 99 Explorer.
I was wondering has anyone used one on a 914? Would it even work? http://www.fiero.nl/forum/Forum1/HTML/081547.html http://www.youtube.com/watch?v=HbkGhUov74Q I'm thinking we would inject from the MPS hose to keep the smoke off the diaphragm. Thought? BTDT's? I am the tool whore. But I'm not feeling the love on even a well used one. |
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Replies(1 - 10)
| Mike Bellis |
Dec 28 2012, 09:53 AM
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#2
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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I think it's still easier to use carb cleaner or starter fluid and observe an RPM change. Not sure whet the advantage of smoke is other than flamability. But, the smoke generator coule still burn, so maybe it's a wash.
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| cary |
Dec 31 2012, 11:05 PM
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#3
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest
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Well it worked ..........
Found the leaks on the Explorer.   |
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| Jeff Hail |
Jan 1 2013, 02:38 AM
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#4
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Senior Member Group: Members Posts: 1,141 Joined: 3-May 07 From: LA/ CA Member No.: 7,712 |
I always used a propane torch. Just open the valve (unlit) and move it about the hoses, lines, intake system. Simple and cheap.
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| HarveyH |
Jan 1 2013, 02:55 PM
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#5
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Member Group: Members Posts: 450 Joined: 19-June 03 From: Downingtown, PA Member No.: 843 |
If these were British cars.....
 (IMG:style_emoticons/default/biggrin.gif) Happy New Year to all Harvey |
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| Woody |
Jan 1 2013, 04:16 PM
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#6
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Sandbox Rabblerouser and head toilet scrubber Group: Members Posts: 3,858 Joined: 28-December 10 From: San Antonio Texas Member No.: 12,530 Region Association: Southwest Region |
We use one regularly at the dealership. Trying to diagnose evap or vacuum systems on any current car without one would be much harder.
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| cary |
Jan 1 2013, 06:54 PM
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#7
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest
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On the new cars the stuff is packed in there pretty tight.
I was pretty certain what the problem was. It was nice to see the smoke come out from exactly where I thought it would come from. |
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| worn |
Jan 2 2013, 12:07 PM
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#8
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can't remember Group: Members Posts: 3,172 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(cary @ Jan 1 2013, 04:54 PM)  On the new cars the stuff is packed in there pretty tight. I was pretty certain what the problem was. It was nice to see the smoke come out from exactly where I thought it would come from. I found one useful for checking out the CIS system on my 911. I was worried about a cracked air box. BTW Cary, want the mounts? |
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| strawman |
Jan 2 2013, 07:41 PM
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#9
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Senior Member Group: Members Posts: 881 Joined: 25-January 08 From: Los Osos, CA Member No.: 8,624 Region Association: Central California
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QUOTE(cary @ Dec 28 2012, 04:52 AM) I going to be building a DIY smoke tester to find a vacuum leak on my sons 99 Explorer. I was wondering has anyone used one on a 914? Would it even work? http://www.fiero.nl/forum/Forum1/HTML/081547.html http://www.youtube.com/watch?v=HbkGhUov74Q I'm thinking we would inject from the MPS hose to keep the smoke off the diaphragm. Thought? BTDT's? I am the tool whore. But I'm not feeling the love on even a well used one. +1. I built one using a GMC diesel glow-plug and glycerin/water mix to find a vacuum leak in my '97 BMW 328i. The leak was under the intake manifold, which was impossible to find using the age-old remedies (carb cleaner, propane, etc.). Pumping the smoke into the air filter end of the intake and seeing it plume out under the manifold was glorious... |
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| bulitt |
Jan 2 2013, 08:08 PM
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#10
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
here is what I use...
(IMG:http://www.914world.com/bbs2/uploads_offsite/0.tqn.com-13632-1357178923.1.jpg) |
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| Jeff Hail |
Jan 2 2013, 08:48 PM
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#11
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Senior Member Group: Members Posts: 1,141 Joined: 3-May 07 From: LA/ CA Member No.: 7,712 |
QUOTE(bulitt @ Jan 2 2013, 06:08 PM) here is what I use... (IMG:http://www.914world.com/bbs2/uploads_offsite/0.tqn.com-13632-1357178923.1.jpg) Bill, Monica? How are you guys? I would never have though a cigar could be used for that. Inventive and resourceful I must say. (humor only Bob, couldnt resist) |
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