How Far Should The (vortech) Oil Pan Fitting Go Into The Bunge?

gnx547

Member

Sep 26, 2006

283

1

19

Oct 27, 2013

#1

• Oct 27, 2013

• #1

I got the ARP bunge welded into the oil pan. The oil fitting, which is 1/2 in ID x 3/8 in MIP, and when I put it in by hand it only goes about 2 threads in and it stops. I put a wrench on it and I turned it a little bit and I stopped because it seems very tight and not going in easy and I don't want to strip or break it. How far should the bunge go in? Why is the fitting not threading easy into the bunge? For those using the bunge, how far is yours in?



This is the bunge I bought

http://www.summitracing.com/parts/ar...8202/overview/

 

flstang65

10 Year Member

Dec 6, 2007

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SE Georgia

Oct 28, 2013

#2

• Oct 28, 2013

• #2

Seems like you might have the wrong thread pitch on your plug. You need a 3/8 NPT thread to fit in the bung.

 

gnx547

Member

Sep 26, 2006

283

1

19

Oct 28, 2013

#3

• Oct 28, 2013

• #3

I was told MIP and NPT are the same threads

 

Blown88GT

Founding Member

Nov 13, 1999

2,283

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Palm Beach Gardens, FL

Oct 28, 2013

#4

• Oct 28, 2013

• #4

gnx547 said:

I was told MIP and NPT are the same threads

Click to expand...

There are two basic types of National pipe threads:

• NPT: National Pipe Taper
• NPS: National Pipe Straight

NPT threads are also sometimes referred to as

• MIP (Male Iron Pipe)
• FIP (Female Iron Pipe)
• IPT (Iron Pipe Thread)
• FPT (Female Pipe Thread)
• MPT (Male Pipe Thread)

BTW, never heard of anyone using a bung before. There's no pressure there, it's only a drain line. However, it's unclear why it won't fit.

 

84Ttop

They make new pistons every day, so why worry?

5 Year Member

Jul 2, 2009

5,222

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South Jersey

Oct 29, 2013

#5

• Oct 29, 2013

• #5

It could be that there is just some welding slag in the bung. Try running a tap through there first to clean it up then thread in your barb fitting. I always weld the bung on I HATE tapping the pan, lol