Oil Plug Head Rounded

Yogrowma · 12-13-2020, 03:28 PM

Any tools to remove the 14mm bolt oil plug with rounded hex head? Just 14mm extractor?

Skeet6 · 12-13-2020, 06:47 PM

Not sure how bad yours is, but on my new (to me) 2016, I went under to find a rounded mess of a 17mm plug. Purchased $5 replacement at NAPA, while getting all ready for all sorts of extraction methods. First, I tapped a good 6 point socket on it, nice and square with a small hammer. It came right off, surprisingly.
Mike B

KillerBMotorsport · 12-13-2020, 07:35 PM

6-point is a good start. Sometimes you can break them free with a chisel on the side of the head. If you know anyone with a welder, wed a nut on.

Vancouver98STi · 12-14-2020, 06:13 PM

I'm curious how oil drain plugs get "rounded" in the first place? It's not like they're torqued to 300 ft lbs. Is it simply the use of improper tools?

Aristocrat Autosport · 12-14-2020, 07:09 PM

usually from using a 12 point wrench and not a 6 point wrench and it slipping, or using a 15mm wrench/socket on the drain plug and not catching it

Vancouver98STi · 12-14-2020, 07:58 PM

I suspect weekend warriors are using pliers and/or vice-grips!

12-13-2020, 03:28 PM	#1
Yogrowma Scooby Newbie Member#: 516369 Join Date: Jul 2020	Oil Plug Head Rounded Any tools to remove the 14mm bolt oil plug with rounded hex head? Just 14mm extractor?

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12-13-2020, 06:47 PM	#2
Skeet6 Scooby Newbie Member#: 520409 Join Date: Nov 2020	Not sure how bad yours is, but on my new (to me) 2016, I went under to find a rounded mess of a 17mm plug. Purchased $5 replacement at NAPA, while getting all ready for all sorts of extraction methods. First, I tapped a good 6 point socket on it, nice and square with a small hammer. It came right off, surprisingly. Mike B

12-13-2020, 07:35 PM	#3
KillerBMotorsport NASIOC Vendor Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	6-point is a good start. Sometimes you can break them free with a chisel on the side of the head. If you know anyone with a welder, wed a nut on.

12-14-2020, 06:13 PM	#4
Vancouver98STi Scooby Specialist Member#: 459287 Join Date: Dec 2016 Chapter/Region: VIC Location: Vancouver BC Canada Vehicle: 1998 JDM Impreza STi V4 GF8 White	I'm curious how oil drain plugs get "rounded" in the first place? It's not like they're torqued to 300 ft lbs. Is it simply the use of improper tools?

12-14-2020, 07:09 PM	#5
Aristocrat Autosport NASIOC Storefront Vendor Member#: 384404 Join Date: Mar 2014 Chapter/Region: SCIC Location: Buena Park Vehicle: MANY WRX, STI, 997TT wrb	usually from using a 12 point wrench and not a 6 point wrench and it slipping, or using a 15mm wrench/socket on the drain plug and not catching it

12-14-2020, 07:58 PM	#6
Vancouver98STi Scooby Specialist Member#: 459287 Join Date: Dec 2016 Chapter/Region: VIC Location: Vancouver BC Canada Vehicle: 1998 JDM Impreza STi V4 GF8 White	I suspect weekend warriors are using pliers and/or vice-grips!