Thread: Did i create, worsen or get rid of a boost leak?

OK had a question and I asked in my turbo thread and got nill, so going to just repeat that post here.

Ok today I did an oil change an while I was at it I changed the boost nipple on the comp housing to a plug.

Before (this pic was taken during the turbo install so that couplers not like that anymore lol)




After



The plug I used threaded in really easy with little to no effort until the end, however I did put a BUNCH of plumbers tape on it before I put it in for good.

I did this because I was thinkin maybe that rubber nipple maybe leaking or something, what I noticed right away was the throttle response seems to have improved, but I think it still reaches full boost by the same rpm, maybe even a tad bit later.

At full boost its kind of strange, one pull I saw the gauge fluttering from 10-12psi really fast, but most of the pulls it seemed to just hit 12psi then settle down around 10, where as before it would pretty much hold 11-12psi pretty steady.

I'm not sure if its just in my head or what, but it did seem to pull a little harder, 2nd gear lights up an I'm bangin the limiter pretty easy, an its dry out today

So what do you guys think? did I fix a boost leak or did I make one? lol

I really need to make a leak tester.

You probably didn't make it worse. I'd have used RTV instead of plumbers tape but I don't know what plumbers tape is so.

As long as that bolt isn't interrupting the air stream now...

its just a plug, the height of the portion thats threaded is the same as whats on the part i took off, so it doesn't sit in any further then what the other one did.



This is plumbers tape

Teflon tape is not a sealer, is is a lubricant. Do it again with RTV?

well yes and no, teflon tapes to use on pipe threads, and this piece i put in is 1/8 npt which is pipe thread right?

you might want to look here.

Thread seal tape - Wikipedia, the free encyclopedia

everytime i've seen someone use rtv on a thread for a seal it hasn't worked very well, but i guess if this isn't working either i could try it i suppose

thread tape works but thread sealer is better (pipe dope). Right stuff works great too.

I doubt you made anything worse. I would have used rtv to seal the plug.

Yah I was expecting to see pipe dope when you described it.

why not use a npt bung/plug?

I will look into that stuff, thanks guys.



its a 1/8 npt plug