How to: Make a slightly more baller boost leak tester

[whoflungpoo]

Hello my Nico breathren, It's been a while since I've been on, and since I'll be using the site to unload some SR parts soon, figured I would try and give back a bit. I may not have a Nissan now, but I'll have one again. Not sure where to put this, but since I've always been an S-chassis, guy, I'll put it here.

I really didn't see any how to's on building a boost leak detector other than the 5 dollar PVC cap + glue + valve stem, and while it's great for a quick diagnosis on the road, I wanted one that met certain criteria for my home use

-quick disconnect for hands free operation-ball valve to turn on or off. -Pressure gauge to keep an eye on things without running to look at my boost gauge or compressor gauge.-Pressure regulator to adjust things easily to see just how everything responds to different boost levels.

So, I set off to my friendly neighborhood Lowe's and picked up the following items:

A 2 inch slip on bushing with a 1/2" NPT threaded opening. This fit my hotpipe couplers perfectly, I'll have to find an adapter to hook it to my turbo inlet as it is 4"

also pictured is a 1/2" to 1/4" adapter that is required for this project. This was glued in, so I couldn't separate it for pictures.



TWO 1/4" male to male adapters:

A 1/4" ball valve

A 1/4" female quick connector for whatever style compressor hose you're using.

and a mini regulator, ~$18 or so.



Assemble it like so:



use plenty of this:

Finished product:

I know it costs quite a bit more than 5 bucks, more like ~ 30, but the fact that I can leave my compressor hooked up, know exactly how much pressure I'm pushing, and shut it off at any moment is worth it to me. Not to mention I can really get in and search without having to worry if I'm running out of air.

After throwing this on my evo, I found leaks in my BOV banjo fitting, wastegate source, 2 couplers, brake booster source, and the common throttle body shaft leak. Well worth the money imho. If there's any questions, comments, flaming, death threats, etc.. feel free