Smog/Air injection system removal?

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Re: Smog/Air injection system removal?

Postby Buffalo Bruce » Sat Apr 24, 2021 4:44 pm

Just got an 86 P'up auto 3 speed, getting 36 mpg. That seems pretty good for 3 speed, it needs another gear. My first post.
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Re: Smog/Air injection system removal?

Postby Buffalo Bruce » Thu May 27, 2021 12:25 pm

1986 2.3 P'up, How come my carb has no gas/air adjustment screw? Is there a carb to replace it that has one? Thanks
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Re: Smog/Air injection system removal?

Postby DSUZU » Thu May 27, 2021 6:10 pm

Buffalo Bruce wrote:1986 2.3 P'up, How come my carb has no gas/air adjustment screw? Is there a carb to replace it that has one? Thanks

It does, it's just blocked by an ''anti tamper" plug. There may be either a solid round plug (about 3/8") or possibly a hole with a dowel through it on the passenger side of the carb base (I had an 87 2.3 Trooper and an 87 Suzuki Samurai and that's what was there for tamper proofing - I just don't remember exactly which was which after 24 years)
The round plug can be removed by CAREFULLY drilling a small hole, threading it, installing a screw and pry out (careful to not drill too deep and damage ide mixture screw). The dowel type requires removing the carb, and possibly the base (or brutality with a small chisel :lol: )
If you are in a non emissions area, a Weber replacement carb with adapter is a possibility, but If I were getting 36 MPG, I'd count my blessings. Dennis
1991 LS Trooper 2.8 V6 5 speed conversion (Sold)
1989 LS Spacecab 2.6 5 speed 4x4 manual hubs, Rodeo torsion bars, extended shackles, 2" lift, K&N air filter (drop in), dump bed conversion, burgundy interior change, warn brush bar. Engine is bored .020 oversize and upgraded to 1994 pistons, head and EFI system.
Previously owned: 1987 Trooper II LS, 1989 Trooper (parts only), 1994 Trooper 3.2 Auto, 1997 Rodeo 2.6 5 speed, 1993 shortbed pickup 2.3 (project - sold) 1992 Rodeo 4x4 LS (parts car, devoured by Spacecab needs) plus some 70 plus other non Isuzu vehicles over the years. 1994 Amigo devoured to provide head and EFI system.
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Re: Smog/Air injection system removal?

Postby Buffalo Bruce » Thu May 27, 2021 8:30 pm

I did notice that the spot was plugged, I will drill it out. The glitch will be to get the correct length screw/spring. Thanks
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Re: Smog/Air injection system removal?

Postby Enemigo » Thu May 27, 2021 8:48 pm

Use the high school drilling method. Pull out early and often.
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