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Wasted youth
Samba Member
Joined: July 06, 2012
Posts: 5134
Location: California's Hot and Smoggy Central Valley
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 Posted: Wed Dec 13, 2017 10:19 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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I made this video last summer, I think. It's not a very good video. Kinda doubt I'll win any kind of award here... but it sort of 'puts to life' what people in this thread have been trying to explain:
https://www.youtube.com/watch?v=bvWXOe6DXsU&feature=youtu.be |
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Terminatez
Samba Member
Joined: June 07, 2015
Posts: 340
Location: Sun Valley, CA
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| Posted: Wed Dec 13, 2017 10:24 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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Cool video, thanks guys.
Will get to it later this month.
_________________
1972 Westfalia P30 hardtop Campmobile [On-going Restoration]
| aeromech wrote: |
| I don't think I've ever seen an engine in worse shape. |
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BoltonFTW
Samba Member
Joined: February 18, 2017
Posts: 102
Location: San Francisco
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| Posted: Sat Nov 10, 2018 1:04 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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I'm just curious if anyone has heard of someone using a "Halloween" style smoke machine for the smoke source in this test? Would that work instead of burning something in a paint can? They put out pretty low pressure but i'm not sure if its enough to propel through all the lines.
Great video btw thanks for posting it.
_________________
Drew
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1978 Westfalia Campmobile Deluxe 2.0 FI w/hydraulic lifters
1977 Westfalia Weekender Tintop (very first car - SOLD  )
1992 VW Corrado VR6 (SOLD) |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51149
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sat Nov 10, 2018 1:24 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| BoltonFTW wrote: |
I'm just curious if anyone has heard of someone using a "Halloween" style smoke machine for the smoke source in this test? Would that work instead of burning something in a paint can? They put out pretty low pressure but i'm not sure if its enough to propel through all the lines.
Great video btw thanks for posting it. |
I doubt it, those fog machines don't make the drops of fluid small enough to sneak through tiny cracks, smoke particles are much smaller and don't condense out of the air when they encounter something.
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Mispeld
Samba Member
Joined: April 29, 2018
Posts: 355
Location: Jacksonville - Coastal NC
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| Posted: Sun Nov 11, 2018 9:27 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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Thought I'd share. I picked up an old cheap sandblaster at a yard sale for $3.00. I'm sure HF sells these cheap. Turn down the psi, slip on a rubber hose on the nozzle and make your smoke in the container.
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Tom
1977 Westy. 2.0 Fuel Injected. |
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Abscate
Samba Member
Joined: October 05, 2014
Posts: 22668
Location: NYC/Upstate/ROW
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| Posted: Sun Nov 11, 2018 11:54 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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I’ve got pictures and parts in the EuroBus Forum using smudge sticks and kitty litter containers
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.ssS! |
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Wasted youth
Samba Member
Joined: July 06, 2012
Posts: 5134
Location: California's Hot and Smoggy Central Valley
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| Posted: Mon Nov 12, 2018 9:31 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| Mispeld wrote: |
Thought I'd share. I picked up an old cheap sandblaster at a yard sale for $3.00. I'm sure HF sells these cheap. Turn down the psi, slip on a rubber hose on the nozzle and make your smoke in the container.
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I like this! |
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BoltonFTW
Samba Member
Joined: February 18, 2017
Posts: 102
Location: San Francisco
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| Posted: Mon Nov 12, 2018 8:48 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| Wasted youth wrote: |
| Mispeld wrote: |
Thought I'd share. I picked up an old cheap sandblaster at a yard sale for $3.00. I'm sure HF sells these cheap. Turn down the psi, slip on a rubber hose on the nozzle and make your smoke in the container.
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I like this! |
Thanks for sharing!
_________________
Drew
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1978 Westfalia Campmobile Deluxe 2.0 FI w/hydraulic lifters
1977 Westfalia Weekender Tintop (very first car - SOLD )
1992 VW Corrado VR6 (SOLD) |
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vwwestyman
Samba Member
Joined: April 24, 2004
Posts: 5688
Location: Manhattan, Kansas, USA
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| Posted: Tue Nov 13, 2018 2:26 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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After seeing a youtube video, I bought some cheapo cigars, then I hooked up a hose to a vacuum port on the intake manifold. I simply lit the cigar, took a big draw into my mouth, and blew it into the hose. It didn't take too many draws to start revealing a couple intake manifold leaks on my mom's Volvo. It did help to have an assistant looking for the smoke.
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Dave Cook
President, Wild Westerner Club
1978 Champagne Edition Westy, repowered to '97 Jetta TDI
1973 Wild Westerner
My Thing |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16971
Location: San Diego, California
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| Posted: Tue Apr 07, 2020 7:41 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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Gary’s smoke test instructions:
1) drive down to your friendly local dispensary
2) purchase some weed
3) return home and smoke the weed
4) no more problems
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Xevin 
Samba Member
Joined: January 08, 2014
Posts: 7632
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| Posted: Tue Apr 07, 2020 8:19 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| aeromech wrote: |
Gary’s smoke test instructions:
1) drive down to your friendly local dispensary
2) purchase some weed
3) return home and smoke the weed
4) no more problems |
I envision Erb making a smoke test video “Using a bong for 76-79 FI bus vacuum leak”  
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Keep on Busin'
| 67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
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| Damn that Xevin... |
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I respect Xevin and he's a turd  |
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My God! Xevin and I 100% agree  |
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ivwshane
Samba Member
Joined: May 19, 2011
Posts: 1920
Location: Sacramento ca
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| Posted: Tue Apr 07, 2020 9:32 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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This is the best “cheap” DIY smoke machine I’ve seen yet. For me the “best” means something that can be built with readily available components.
https://www.instructables.com/id/BEST-Automotive-Smoke-Machine-You-Can-Build/
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77 westy 2.0 FI
69 ghia coup 1600dp
70 single cab |
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Lil Lulu
Samba Member
Joined: December 08, 2007
Posts: 1745
Location: Mouth of the Columbia
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| Posted: Tue Apr 07, 2020 10:01 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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Tried Gary’s method but I can’t recall the results.
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'65 Beetle "Lil' Lulu"- Ruby Red
1600 stock from '71 bus
'72 Deluxe - Niagara Blue w/pastelwiess Camper Special 2L dual 40 Webers 002
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airschooled
Air-Schooled
Joined: April 04, 2012
Posts: 12727
Location: on a bike ride somewhere
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| Posted: Tue Apr 07, 2020 10:52 am Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| Lil Lulu wrote: |
| Tried Gary’s method but I can’t recall the results. |
Obviously a sign of a successful test.
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ewdb92
Samba Member
Joined: September 24, 2010
Posts: 502
Location: Plymouth, NH
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| Posted: Tue Apr 07, 2020 3:30 pm Post subject: Re: Finding vacuum leaks with smoke (smoke test, tester) |
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| asiab3 wrote: |
| Lil Lulu wrote: |
| Tried Gary’s method but I can’t recall the results. |
Obviously a sign of a successful test. |
Sounds like you need to try it again!
_________________
Erik
71 Camper
http://zerotosixtyeventually.wordpress.com/ |
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