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914World.com _ 914World Garage _ Experiences with smoke testing machines on 914?

Posted by: Amphicar770 May 28 2016, 10:51 PM

Hi all,

Tracking down vacuum leaks on the 914 is a source of frustration for many 914 owners.

It seems that smoke machines are increasingly popular for many shops
http://www.motor.com/magazinepdfs/072003_04.pdf

I was curious if anyone has experience using them on the 914. Seems like a good way to seek and find plenum leaks or related.

Posted by: Mueller May 29 2016, 12:53 AM

Never used one on the teener, use them at work once in a while to look for leaks on machines or electrical cabinets that we have to pressurize to keep them at a positive pressure relative the room they are installed in.

Posted by: mgp4591 May 29 2016, 01:25 AM

Used em on many a Honda. Usually on evap systems but if you pipe it in correctly, you should be able to detect almost any leak. Use a flashlight to highlight the smoke as it comes out of wherever - it really lights up much better for detection.

Posted by: bretth May 29 2016, 05:24 AM

It is pretty easy to make your own. Some tubing, coffee can, something to smolder, and a compresser or similar to make around 5 psi. Helped me find an intake leak on my Hyundai that eluded me for years.

Brett

Posted by: r_towle May 29 2016, 04:20 PM

Aside from the hosing adapters, the Halloween spooky smoke machines are a whole heck of a lot cheaper, and do exactly the same thing.

Rich

Posted by: sb914 May 29 2016, 05:36 PM

I've tried it

Posted by: cary May 30 2016, 07:02 AM

There's a couple DIY's on You Tube. I built one to find a leak on a 4.0 Ford. Paint can, old red shop towel soaked in WD 40, a couple fittings and a paint gun pressure regulator.
Don't know why it wouldn't work on a T4.

Posted by: Amphicar770 May 30 2016, 10:21 AM

http://www.thesamba.com/vw/forum/viewtopic.php?p=5282178