Welcome to the North American Subaru Impreza Owners Club Saturday April 19, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > General Community

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-28-2001, 12:45 PM   #1
daytontp
Scooby Newbie
 
Member#: 9797
Join Date: Aug 2001
Location: South Carolina
Vehicle:
2005 Honda S2000
New Formula Red

Default Oil Drain Plug Thread Size

I understand that I can do a search for this. But, after 2 hours of searching and reading 30 to 40 threads. No luck yet. Most of the threads I have read relate to getting their drain plug tapped at their local machine shop. Which I have found 2 places in town that can do this for me. But, I am ordering AutoMeter gauges and AutoMeter makes some fittings that may work. They are only $9.80, and considering I am already ordering the gauges I may as well order the fitting if it works. I understand the bolt head is a 17 mm, which I can comfirm because I changed my oil at 1,200 miles.

What is the thread size of the OEM 2002 WRX Oil Drain Plug Bolt? Is it one of the sizes listed below?

M10 X 1.0
M12 X 1.0
M14 X 1.5
M16 X 1.5

M10 X 1.0 to 1/8" NPT - AutoMeter part #2265
M12 X 1.0 to 1/8" NPT - AutoMeter part #2266
M14 X 1.5 to 1/8" NPT - AutoMeter part #2267
M16 X 1.5 to 1/8" NPT - AutoMeter part #2268

Thanks!!
* Registered users of the site do not see these ads.
daytontp is offline   Reply With Quote
Old 12-31-2001, 11:54 PM   #2
daytontp
Scooby Newbie
 
Member#: 9797
Join Date: Aug 2001
Location: South Carolina
Vehicle:
2005 Honda S2000
New Formula Red

Default

No one knows.

I sent Subaru an email:
What is the thread size in my 2002 WRX Oil Pan Drain Bolt?

I am planning to put an AutoMeter Electric Oil Temp gauge in my car and this requires the drain bolt to be tapped in the center with an 1/8' NPT thread which is 1/8' x 27 (versus 1/8' BSPT which is 1/8' x 28). AutoMeter and Pegesus Racing sells some adapters that have an 1/8' NPT tap already in it, but I do not know what the thread size of the bolt itself.

Thanks!!!

What I got in a reply:
Dear Dayton:

Thank you for taking the time to contact us. I will need to check with our Technical Services Department regarding the thread size of the oil drain plug for your '02 WRX. As soon as I have this information, I will contact you again. Thanks for your patience!

John J. Mergen
Subaru of America, Inc.


I will post the final reply!!!
daytontp is offline   Reply With Quote
Old 01-01-2002, 08:33 AM   #3
AaronB
Worst Mod Ever
Moderator
 
Member#: 369
Join Date: Oct 1999
Chapter/Region: SWIC
Location: Phoenix, AZ
Default

Cool I am interested in this tid-bit of info as well, as I have an oil temp gauge sitting in my garage. Keep me posted.

Aaron
AaronB is offline   Reply With Quote
Old 01-01-2002, 10:10 AM   #4
lgkahn
Scooby Specialist
 
Member#: 9793
Join Date: Aug 2001
Location: londonderry nh
Vehicle:
2002 2010 legacy gt
red

Default

Can't remember exactly but I know none of those fit..

I believe it is M20 X1.25 or M20 X 1.5 that is why I had to buy one and tap it...

I already went down this road
lgkahn is offline   Reply With Quote
Old 01-03-2002, 04:36 PM   #5
daytontp
Scooby Newbie
 
Member#: 9797
Join Date: Aug 2001
Location: South Carolina
Vehicle:
2005 Honda S2000
New Formula Red

Default

Well it looks like I will have to find out for myself. If anyone can provide this info, please do. When I figure it out, I will post what I find. I removed the last name.

The Reply I Got Back From Subaru:
Dear Mr. Pruet,

Thank you for your patience in awaiting a response to your inquiry of December 29th. I apologize for the delay. We have been racing to catch up from the holidays!

I have spoken with our Technical Services Department regarding your inquiry and they have advised the following:

We are unable to provide you with the thread size of the oil pain drain bolt. Subaru of America, Inc. is strongly opposed to the installation of aftermarket parts and cannot provide assistance, advice, or information in order to aid you in the installation of such aftermarket parts.

Please also be advised that installation of aftermarket parts may void certain warranties.

I apologize that we cannot assist you in this matter.

Best wishes and Happy New Year!

Sandi
Internet Representative
Customer/Dealer Services
Subaru of America, Inc.

Last edited by daytontp; 01-03-2002 at 04:57 PM.
daytontp is offline   Reply With Quote
Old 01-03-2002, 06:19 PM   #6
cdclark
Scooby Newbie
 
Member#: 8095
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: e pluribus unamusem
Vehicle:
2010 OB: Subie #3
2010 Golf TDI 6sp Manual

Default

Is there a reason you can't just take your drain plug to an industrial supply store and find a nut that fits, then copy down the thread pitch info on the nut?

There's such a place near me in Santa Ana, CA. I had some fuel rail bolts that I needed to replace on my 240SX, so I first went to Home Depot. They weren't a hell of a lot of help, since they carry almost nothing in metric. But they pointed me to a place that did.

-Cameron
cdclark is offline   Reply With Quote
Old 01-03-2002, 06:28 PM   #7
daytontp
Scooby Newbie
 
Member#: 9797
Join Date: Aug 2001
Location: South Carolina
Vehicle:
2005 Honda S2000
New Formula Red

Default

This is very easy to do, but somewhat difficult for me to do within the next 2 to 3 weeks. Yes, I can take it to Lowe's, Home Depot, Napa, etc.. and hold it up to a thread size measuring tool. I have seen one at the Lowe's near my house. I will probably go back and buy the tool anyway. But the problem is that the bolt is on my car, and it will take over a week or two to get one from the dealer. They are only $2 a piece, but the parts department at my local dealer does not keep them in stock. And, they said it may take a week or two to get one in for me. I may order a bunch if people are interested in buying some already tapped with a 1/8" NPT thread in them. I am not positive how much it will cost me to have one tapped. There are to industrial shops in town I have talked with that can tap them for me. The thing is, all the fitting I have seen that may work are between $8 to $15. Which is probably less than it would cost me to have one tapped.
daytontp is offline   Reply With Quote
Old 01-03-2002, 11:32 PM   #8
WRX216
Scooby Newbie
 
Member#: 8027
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Blue Eye, Mo.
Vehicle:
2002 WRX sedan
Midnight Black

Default

Ok just went out to the garage and got my old drain plug out of the solvent tank. 20 x 1.5 mm thread. The reason I had one lying around in the solvent tank is that I bought a new one from the dealer when I did this mod. I had a buddy pop it in the lathe, drilled and tapped 1/8" npt, and counterbore clearence around the sensor so the oil could get to it. Total cost - $5 for the plug, and a six pack for the machine work . Although I see your point about delivery time, when I got my plug they got it in 3 days. My last couple of special orders have taken over 2 weeks (and this with the $21 overnite freight charge , made them refund this:monkey: ) Good luck, I don't think that you will find a metric plug with 1/8" npt pretapped though.
Chris
WRX216 is offline   Reply With Quote
Old 01-04-2002, 07:55 AM   #9
lgkahn
Scooby Specialist
 
Member#: 9793
Join Date: Aug 2001
Location: londonderry nh
Vehicle:
2002 2010 legacy gt
red

Default

As I said before I have already gone down this path.. No one seemed to believe me.

I bought a 1/8 NPT die set and a spare plug from a dealer and a 11/32 drill bit and tapped it myself.


I also bought a couple of pre taped plugs from
www.scoobymania.co.uk

ask for this
sump bungs with the 1/8 NPT tap/hole for the oil temp sensor.

Didn't know if my own tap would work. They took a while to get here from the uk, and I already sold one of them and am keeping the other.

enjoy

want some more info


crush washer part number 11126AA000

33 ft lbs +/- 3.6
or finger tighten then 1- 1&1/2 turns
lgkahn is offline   Reply With Quote
Old 01-04-2002, 09:43 AM   #10
daytontp
Scooby Newbie
 
Member#: 9797
Join Date: Aug 2001
Location: South Carolina
Vehicle:
2005 Honda S2000
New Formula Red

Default

Thanks!! I also bought the tap myself, but was wondering what drill bit size to use, now I know 11/32. Thanks again!!
daytontp is offline   Reply With Quote
Old 01-04-2002, 11:35 AM   #11
lgkahn
Scooby Specialist
 
Member#: 9793
Join Date: Aug 2001
Location: londonderry nh
Vehicle:
2002 2010 legacy gt
red

Default

I think the actual size to use is Size R but no one sells it and 11/32 is close enough.



No leaks since I did this 2 months ago. I did put some teflon gunk on the threads before I put the sensor in.

I also got a bigger bit to drill out the bottom larger so the oil could get around the sensor.

Make sure to get some cutting oil from home depot to use when drilling the plug and tapping in... makes a mess but works well.
lgkahn is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
03 wrx oil drain plug thread size edogg6565 Service & Maintenance 1 04-16-2010 11:34 AM
Oil drain plug thread size? shemoves Service & Maintenance 3 10-07-2005 01:14 PM
oil drain plug thread size? vile Factory 2.0L Turbo Powertrain 1 05-22-2003 10:59 AM
Drain plug thread size??? LVSUBARU Normally Aspirated with bolt-on Forced Induction Powertrain 3 10-13-2001 01:30 AM
Drain Plug Thread Size Marquis Normally Aspirated Powertrain 3 02-16-2001 11:25 AM


All times are GMT -4. The time now is 09:18 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.