DIYbanter - View Single Post - Do you have the electronics skills to design a good home made smoke machine?

rickman

wrote on 12/16/2017 6:53 AM:
"The smoke
is pumped INTO the system, with the engine not running - under a low
pressure to force it OUT through the leak."

Yeah you could brush up bit as well. It must be tested with the engine running. When you shut it down at east ONE intake valve will be open and the odds are good that it is during valve overlap, which is quite long in modern engines. Odds are even better that two intake valves are open and it will go in one and out the other.

Think about what you wrote. If you run this test with the engine running,
there is a vacuum on the intake and smoke won't exit through any leaks.
Instead the leaks pull air into the tubing. So how would any smoke at the
intake be leaked to show the defect?

--

Rick C

Viewed the eclipse at Wintercrest Farms,
on the centerline of totality since 1998