SuzukiSavage.com - Is it possible to make a cheap DIY Air Fuel Meter?

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Igni Ferroque

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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #30 - 04/16/12 at 11:16:59

justin_o_guy2 wrote on 04/16/12 at 10:57:28:

Find bolts & lay thread into thread, or, grab a tool, they make a diameter/pitch tool. Not uncommon to see them hanging in the nut /bolt department.

Your SURE it aint a pipe thread? Reeaaalllyyy??

Lowe's only has the pitch tool that has sample bolts and nuts that it carries on the wall, so no luck for me there.

and man, i don't even know anymore. I've been thinking about this so long i've confused myself. I'm going to have to eat my shoe if it ends up being pipe thread...

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #31 - 04/16/12 at 11:37:01 I went & looked at some online,, not pipe thread,, What size wrench fits it? You cant get the info you need from the place you got it? What vehicle would it fit?
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Igni Ferroque

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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #32 - 04/16/12 at 12:23:52

I love how half of this post is just about these stupid threads...

Don't know about the wrench, I'll let you know when I get home.

Nope, amazon just says "OE" fitment (original equipment).

There are dozens of vehicles. Primarily GM brands, late 80's to early 90's. http://performance-curve.com/12014-boscho2sensorforgm.aspx has a full list if you're curious. Probably SAE and not metric if that is what you were thinking.

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SALB Serious Thumper Offline FSO Posts: 668 Whittier, AK Gender:	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #33 - 04/16/12 at 13:26:14 They make universal weld in bungs just for this purpose. You should be able to get one at the local exhaust shop or auto parts store. Just be sure to take the O2 sensor with you. I think they also sell plugs, so you can remove it when your done and not have to keep changing your setup.
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spacepirates

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Igni Ferroque

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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #34 - 04/16/12 at 19:39:44

SALB wrote on 04/16/12 at 13:26:14:

They make universal weld in bungs just for this purpose. You should be able to get one at the local exhaust shop or auto parts store. Just be sure to take the O2 sensor with you. I think they also sell plugs, so you can remove it when your done and not have to keep changing your setup.

Good idea. I'll stop at AutoZone on my way home from work with the O2 sensor to see if they have anything.

To answer JoG about the size of the O2 sensor, the hex part of the sensor is either 22mm or 7/8 inch. I can't tell which, they both fit decently well. I'm kind of annoyed that the hangup on this project is finding a friggin nut. bah. oh well.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #35 - 04/16/12 at 22:31:27 Man, Ive tried, I really have, but I thnk that Salb dude has the answer,,
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spacepirates Serious Thumper Offline Igni Ferroque Posts: 515 Pittsburgh, PA Gender:	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #36 - 04/17/12 at 05:45:59 justin_o_guy2 wrote on 04/16/12 at 22:31:27: Man, Ive tried, I really have, but I thnk that Salb dude has the answer,, and I appreciate it. he couldn't ring in a few days ago, could he? noooooo, gotta wait till the bitter end and slip that bit 'o knowledge in here
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #37 - 04/17/12 at 08:37:54 Yeaa,, I know,, I need a "Slap that guy!" emoticon,, Where the HEKK you been Salb? Coulda saved me a load O hassle,,
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SALB Serious Thumper Offline FSO Posts: 668 Whittier, AK Gender:	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #38 - 04/17/12 at 16:28:47 Sorry. Been soaking up the rays. Spring is FINALLY here!
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spacepirates

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Igni Ferroque

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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #39 - 04/17/12 at 17:26:31

negatory!

Went to AutoZone this evening, no luck. Even got me a confused look when I asked for a "weld-in O2 sensor bung."

Checking online, and they are $16-$20! what the crap?!

Ugh, and to make things WORSE, I look online and see that a number of these weld-in bungs for O2 sensors have JoG's favorite acronym next to them: NPT.

to be fair, I had limited time at Lowe's last time I went, so I'll try there AGAIN and check PIPE THREADS this time Embarrassed

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28889 L.A. California Gender:	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #40 - 04/17/12 at 17:35:19 yeeeeah. http://www.ebay.com/itm/O2-BUNG-OXYGEN-SENSOR-MILD-STEEL-O2-EXHAUST-PIPE-BUNG... http://www.ebay.com/itm/AEM-3-No-Weld-o2-Sensor-Bung-/280760996057?pt=Motors_...
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #41 - 04/17/12 at 20:18:58 If you can find a pipe coupling that fits, then cut it in half & weld it on.,
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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #42 - 04/18/12 at 07:59:44

This thing is really getting on my nerves. I need a friggin nut that fits this friggin O2 sensor, and it is difficult to find one that is a reasonable cost.

There are multiple thread sizes and pitches for O2 bungs, so I can't even be sure that what I'd be getting is the right size.

What I really should have done was bought a tap and die set to verify the size/pitch of this thing and then ordered an appropriately sized nut/bung and bolt/plug.

I'm just extra pissy because I fouled out a plug on my bike after work yesterday and drained the battery trying to start it. I had to take my car into work today, and who likes doing that when the weather is 50 in the morning and 65 in the afternoon? I hate missing good riding days :'( oh well. soon the weekend will be here. and I can't really complain, the early spring has given me a lot more riding than is normal.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Is it possible to make a cheap DIY Air Fuel Me Reply #43 - 04/18/12 at 09:22:31 Dude,, take that thing to a nut & bolt shop[.. seriously..youre makin way too much of it, Or go to the plumbing section of a hardware store & pick up a piece of pipe & lay the threads together & see if the pitch matches,
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Re: Is it possible to make a cheap DIY Air Fuel Me
Reply #44 - 04/22/12 at 20:29:13

bought a bung and plug off amazon without knowing if they'd work. Turns out they did.

I had an hour this afternoon so I welded the bung in. Not the prettiest work (especially since I just cut a hole in my wrap instead of taking it off, ha ha) but it should be functional enough. Don't know if I got it air tight, as I ran out of time. I drilled a hold in my header (about 8" higher than the foot peg, facing backwards) and used a hammer to flatten the header a bit. I then welded the bung in. Something must have happened to the lower threads of the bung, as the plug doesn't seat fully anymore, but the O2 sensor does.

Tomorrow looks like a high of 37 or so (what the heck happened to our early summer? it was a high of 80 just a few days ago!), but I should at least be able to start her up and see if she leaks. boy I hope she doesn't leak.

Anyways, damage done. I'll take pictures tomorrow along with testing out of the O2 sensor works or if I just blew time and money on some garbage.

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