I tried all the methods and this by far worked the best. This is it, an air compressor, some fitting adapters and Mr. Bubble solution (50% liquid bubble bath and 50% water).

Put a rubber 2-1/2" home depot coupling and end plug into the rubber coupling on the AFM. Plug the end with an end cap and 1" female npt port. Add a 1" to 1/4" pipe bushing and plug in your air hose (and use some teflon tape).

I initially set the pressure to 5 psi and first go found eight--yes that's (8) leaks. Spray the Mr Bubbles wherever you want, but especially on fittings and gaskets. Oh yea--only do this on a cold engine. No way in hell I would have found them without it. When you're done just rinse it off with water.

Still have a massive leak on the freakin thermal wax unit--that means I gotta take off the POS PITA throttle body. This one is so bad I could hear it. Even after knowing where it is I sprayed starting fluid on it and had no effect.

Even some of the bushings around the throttle plate shafts are showing bubbles. Right now I'm just going for the big ones. Once I get the big ones fixed I'm gonna go for 12 psi and see what else bubbles.

Hope this helps someone in the future.

Scott

 

The forum won't let me upload the 95 kb pic so you'll have to wait.

Scott

 

even w/o pics, that's a help. thanks for sharing.

 

that method works great!

 

good method tried and true.

 

could yo draw a picture or have clearer instrucations on how you did this??
cause do not unserstand howyou applu mr bubbles??

do you spray on to the vacumm lines/gasket areas on the engine??

 

cool idea.

 

bump, yeah I want to see how this is done too!

 

you dont have to spray even, just get the house wet with the solution, it makes little white foam/bubbles where air is escaping.
also works on tires =)

 

https://www.rx7club.com/showthread.p...ighlight=leaks

Sounds like this.

 

sounds like a good idea to me!

 

Yep--that's exactly what I'm talking about. Good pics too, so I don't need to upload any photo's, look at the ones in the thread above.

Oh Josepi, how well did your system end up holding pressure? Does it end up bleed out thru the engine/exhaust?

Scott