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07-09-2021, 08:10 AM | #1 |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
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Smog equipment removal on 87 TBI
I want to pull the smog stuff off of my 87 Jimmy (350 TBI/ 700R4 Trans).
What can go? What has to stay? Will I see any improvements other than it will look cleaner under the hood? What is the plug size for the 2 holes in the manifolds? Thanks! Rob
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
07-11-2021, 09:04 AM | #2 |
Just here to tinker
Join Date: Jun 2008
Location: Holland, MI
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Re: Smog equipment removal on 87 TBI
I don’t think you’ll notice a gain buddy. Those TBI motors aren’t power makers. If you do remove it all though, I think the plug size is the same size as a drain plug for a Cummins 5.9 oil pan. I’m pretty sure. Been awhile since I played with those manifolds.
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07-12-2021, 08:03 AM | #3 |
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Join Date: Apr 2005
Location: Pensacola, FL
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Re: Smog equipment removal on 87 TBI
Thanks for the info. Do you know what year of Cummins? I went to OReillys and we pulled up a couple of drain plugs, but they were the wrong thread pitch M22 - 1.5. Apparently, the thread pitch of the smog holes are M22 1.25. Appreciate the help and love your "summer" Burb!
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
07-12-2021, 09:47 AM | #4 | |
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Join Date: Jun 2014
Location: Orlando Florida
Posts: 1,598
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Re: Smog equipment removal on 87 TBI
I get those type of plugs at Home Depot.
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07-12-2021, 02:30 PM | #5 |
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Join Date: Apr 2005
Location: Pensacola, FL
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Re: Smog equipment removal on 87 TBI
HD carries M22 1.25?
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
07-15-2021, 09:07 AM | #6 |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
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Re: Smog equipment removal on 87 TBI
Update: I was wrong about the thread pitch, it is M22 1.5 not 1.25. I grabbed 2 oil drain plugs for a diesel at the parts store and they fit perfect, . For future questions on this matter, the part number is Dorman 652886.
ALSO, if anyone wants this smog equipment, I will gladly box it up and send it to you if you pay shipping, just let me know .
__________________
Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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