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Miller335 Miller335 is offline
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Default Meth bung size - 04-02-2014, 03:28 PM

I'm sure it's been asked before but I cannot find an older thread with this info so I apologize.

Picked up an ER chargepipe and it did not come with plugs for the meth bungs.
Does anyone know what size screws fit into those holes?
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Miller335 Miller335 is offline
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Default 04-05-2014, 11:33 AM

Tried to fit 1/8th npt and it's too large to fit.

Is there a smaller size?
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Russell @ BMS Russell @ BMS is offline
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Cool 04-05-2014, 01:57 PM

Get a 1/8 NPT tap and clean the threads a little. The size should be 1/8.


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skim7x skim7x is offline
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Default Meth Bung Plug Vibrated out of my CP - 03-06-2015, 07:29 PM

Gonna bring this thread back alive for a quick question...

Seems like the meth bung plug on my CP got vibrated out during a WOT run... I purchased a 1/8" NPT plug from a local plumbing supply store (Home Depot didn't have the right size) and it fits perfectly... Just a couple questions:

1) Is anodized aluminum an okay material for the plug, or is brass better? Or does it not really matter?
2) When installing, do I need to put any tape or paste onto the thread of the plug to make sure it is air tight? Or is just screwing it in enough?
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Weehe Weehe is offline
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Default 03-06-2015, 09:10 PM

I would think teflon tape would do fine.
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Miller335 Miller335 is offline
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Default 03-07-2015, 01:39 PM

I used a small drop of blue loctite on each bung.
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Stucks Stucks is offline
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Default 03-08-2015, 12:06 AM

Quote:
Originally Posted by Weehe
I would think teflon tape would do fine.
+1. I used yellow teflon tape.


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Reiss91 Reiss91 is offline
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Default 07-02-2015, 07:58 AM

Is it possible that the meth bung plug could have vibrated into the pipe and maybe fallen down into the intercooler or worse into the intake manifold during boost? I just noticed it was missing on my car.

Did they design the hole so nothing can thread all the way in and through the pipe?
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C Minus C Minus is offline
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Default 07-02-2015, 09:24 AM

Quote:
Originally Posted by Reiss91
Is it possible that the meth bung plug could have vibrated into the pipe and maybe fallen down into the intercooler or worse into the intake manifold during boost? I just noticed it was missing on my car.

Did they design the hole so nothing can thread all the way in and through the pipe?
If npt threads it's tapered.
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TS.Photo TS.Photo is offline
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Default 12-08-2021, 12:35 PM

Another thread revival: looking @ the issue, securing a brass plug in an aluminum hole. Considered teflon threadtape, but though it's a thread-sealer, it's supposed to remain lubricious so not sure how well it'll keep the plugs from falling out. I have some blue thread locker. I read about purple, but it actually costs a lot. I could use just a drop of the blue. I've seen that on some new parts. Just want to get it done and not have to revisit. + any of them can be overcome with a little heat. And finally the old mechanics' standby, have you ever heard of this: just raid the house and use a lttle bit of nailpolish. It's a laquer, sets up hard, works like glue, but doesn't bond that hard. I would still just use a pinhead of it.
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