Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Darrenmcd1 on April 30, 2014, 04:50:29 PM

Title: Help!
Post by: Darrenmcd1 on April 30, 2014, 04:50:29 PM

Guys, does anyone know the thread type and size on Wrangler TJ sump plug.

Had a proper Basil Fawlty moment today when giving it a service. Had just changed spark plugs etc and was onto changing the oil. As it was draining, the postman arrived and as usual my Doberman went loopy. He barked, I sh** myself and the plug went flying   :imwitstupid:

As I don't have the time to wait the 3 days for my local Jeep franchise to order one in, I need a temporary replacement. Hopefully get a bolt and washer from the likes of B&Q if it's even possible!

Title: Re: Help!
Post by: Brynjaminjones on April 30, 2014, 05:07:23 PM

(https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F0%2F05%2FWine_Corks.jpg&hash=397a29ae9433e7822ba61d449ff9ef9886317af0)

Title: Re: Help!
Post by: Brynjaminjones on April 30, 2014, 05:09:20 PM

On a more useful note, I found on another forum that it's 1/2-20, which apparently means 1/2" round with 20 threads per inch.  8-)

Title: Re: Help!
Post by: Darrenmcd1 on April 30, 2014, 05:11:04 PM

Lol might come to that!  Seems to be 12mm diameter. But it's defo not M type thread

Title: Re: Help!
Post by: Darrenmcd1 on April 30, 2014, 05:12:01 PM

Ok, 1/2" confirms the 12mm theory. Ta

Title: Re: Help!
Post by: bgbazz on April 30, 2014, 05:34:50 PM

Have you checked the container that the used oil was draining into? I'd be willing to bet that most of us have dropped the sump plug in there before.

Title: Re: Help!
Post by: Darrenmcd1 on April 30, 2014, 05:37:59 PM

Yeah, tried that and no joy

Title: Re: Help!
Post by: bgbazz on April 30, 2014, 05:46:33 PM

I know this will sound stupid, but having experienced this problem once before (not with a sump plug)...a magnet on a string, trawling around in the long grass and leaves worked for me....after a very helpful Birty sent me another wheel nut set!!

Title: Re: Help!
Post by: JamesH on April 30, 2014, 06:26:17 PM

Not sure this helps but 1/2" -20 is UNf I believe and this is the same as the wheel studs on most jeeps so if you have a spare you could use one of those, maybe with some kind of washer / silicone to help leak seal it as a very temporary measure.

Title: Re: Help!
Post by: Darrenmcd1 on April 30, 2014, 06:44:40 PM

Not stupid at all, just found the bugger in the wheelie bin  :banghead:

Yeah James you are correct. I may be wrong, but I think that actually does convert to an M thread with a fine pitch. M12x1.25 ish

Title: Re: Help!
Post by: bgbazz on April 30, 2014, 07:05:35 PM

So, am I correct in assuming in the crisis is averted?

Title: Re: Help!
Post by: isle of man on April 30, 2014, 07:27:30 PM

Affirmative......

Title: Re: Help!
Post by: bgbazz on April 30, 2014, 07:51:10 PM

 :icon_super:

Title: Re: Help!
Post by: Darrenmcd1 on April 30, 2014, 10:56:53 PM

Haha, crisis averted. Until I blunder my way into the next one  :97: