Using a smoke machine on a 2.0 -, Where to attach? Options

[FlacaProductions]

ok - after reading @TRP 's thread where he comments on using a smoke machine to find vac leaks. Seems like a cheap way to get peace of mind on that topic.

So - if i get the one he got off of Amazon - where do I insert the cone adapter?
74 2.0 with D-jet.

Sorry for the somewhat basic question but it appears to me that just straight into the airbox/air filter snorkel would do it?

[TRP]

ok - after reading @TRP 's thread where he comments on using a smoke machine to find vac leaks. Seems like a cheap way to get peace of mind on that topic.

So - if i get the one he got off of Amazon - where do I insert the cone adapter?
74 2.0 with D-jet.

Sorry for the somewhat basic question but it appears to me that just straight into the airbox/air filter snorkel would do it?

Okay, so what I did was pull the air box off the rubber bellows (I have the LJet) and stuffed the cone into the end of bellows. On the LJet the bellows goes between the throttle body and the airbox / air filter housing. I'm guessing that the dJet doesn't have that type of setup.

I asked my buddy Claude, he said...

Air will naturally escape through the intake filter if you don't seal off the system.

Prepare the Djet system for the smokes
Block the Intake: Disconnect the main air intake boot from the throttle body. Use a rubber glove or kitchen plastic wrap with a hose clamp over the end of the boot to block all airflow.

Seal the Throttle: Make sure the throttle plate is completely closed.

Plug the Auxiliary Air Regulator (AAR): Pinch off the hose or plug the opening that feeds the AAR (the silver cylindrical valve used for cold-start idle) so the smoke doesn't simply travel backwards through the air filter.

Running the Smoke Test
Hook Up Power/Air: Connect the smoke machine to a 12V battery (like your Porsche’s battery).

Inject Smoke: Attach the output hose of the smoke machine to a convenient vacuum port, or the manifold port.

Regulate Pressure: Set the machine's pressure to 1 to 2 PSI maximum. D-Jet intake plumbing and rubber boots are old, so you can easily blow off lines or damage gaskets with high pressure. This particular smoke machine has two different pressure settings, one is 7psi and the other is like 1-2psi (for evap systems) -- use that one.

Identify Leaks: Let the smoke fill the intake tract. Use a bright flashlight to scan for wisping smoke.

Common 914 leak points: Rubber plenum-to-head boots, the throttle body shaft seals, the Decel Valve, injector o-rings, the manifold-to-head paper gaskets, and old, cracked vacuum lines.

Looks like you don't need the cone of shame. (IMG:style_emoticons/default/sad.gif) Sorry man, I owe you 5 bucks for the cost of the cone.

[FlacaProductions]

I asked ChatGPT and got similar, @TRP - thank you! I think I have an idea how to get it done but any hands-on with D-jet would be great, too.

lol on the cone - i haven't ordered yet so i'll get the one sans cone - or maybe i'll get an extra cone in case you break yours!