Below are a couple of recent questions about the OTC LeakTamer Smoke machine.
Q: We are getting a lot of Evaporative codes in our shop lately. Is the OTC 6521 LeakTamer easy to use?

A: Absolutely, it is. It is portable and is basically used the same way on every vehicle. Find a place to hook up the hose and you’re off and running.

Q: Why is it recommended to use Nitrogen instead of shop air? I’ve seen smoke machines that are cheaper that don’t use Nitrogen, so why use Nitrogen?

A: Using Nitrogen with a smoke machine when testing an Evaporative system is the only way to follow automaker test requirements for all makes and models. Most major car manufacturers require or recommend using Nitrogen. Under the heading of Hazard Prevention, SAE (Society of Automotive Engineers) Technical Paper 2007-01-1235 states, “Inside the confines of the fuel system,* flammable mixtures can be prevented by using nitrogen as the carrier gas for the leak detection fluid instead of air.” Shop Owners who are genuinely concerned about employee, customer vehicle, and shop safety use Nitrogen. It’s inert, non-flammable, and prevents a contaminated air supply from inadvertently reaching a customer’s vehicle.

Now with that being said, many repair shops don’t use Nitrogen – they simply use shop air from an air compressor.

Also I would be cautious when considering a cheap unit – besides the OTC 6521 LeakTamer is priced lower than I’ve ever seen it before right now!

Learn more about using a smoke machine.




source: automotivetool.wordpress.com
Click here to read more...