Bowtie316

iTrader: (1)

I have searched and searched, found several threads with no answers and a couple other threads where someone milled their own billet aluminum piece to plug the hole. I don't have a mill so that is out of the question. Has anyone tapped and plugged it with a pipe plug of some sort? Is there a better way? I'm not finding any parts available for this.

This is what Frojoe did. https://ls1tech.com/forums/14940065-post470.html

Thanks for any help.

gagliano7

I tapped and used a plug worked perfect.I put some rtv on the threads.

Bowtie316

iTrader: (1)

Do you remember the tap/plug size?

I'll probably just dive in and figure it out, was just trying to be lazy. I will post back with what I came up with, but it won't be fancy lol.

Bowtie316

iTrader: (1)

This is what I ended up doing. Cut the evap solenoid off right above the hold down flange. Tap the hole to 10-32. Put lock-tite on a 10-32 screw and screwed it in.

ryanleiker

iTrader: (2)

Any follow-up on tapping this hole for pipe threads and putting a pipe fitting in it?

I'm looking to put a vacuum tee in it for my wastegate/BOV.

gagliano7

I tapped mine and used a plug. I can't remember the size.

ryanleiker

iTrader: (2)

Follow up: I went ahead and risked it and tapped mine with a 1/4" NPT pipe thread. I put a bushing/adapter in so I have an 1/8" npt hole to fill with a push-lock fitting for my blowoff valve and/or wastgate.

Note: be careful how deep you tap it because of the taper. There isn't a lot of material to thread so I would tap it in stages until you get the fit you like for the fitting you're using, since its only plastic.

I tapped and put an adapter because 1/8" is more common and I won't have to take the fitting in and out ever again.
Also, remember the thread sealant/Teflon tape.