air mixture screw

1986 NISSAN HARDBODY
181,056 MILES
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TIGER2126
  • MEMBER
  • 2 POSTS
I have a 1985.5 nissan hardbody with 182000 miles and was getting horriable gas milage. i did all the routine maintenace and still nothing. so i noticed that the air mixture scre was super loose i could turn it with a point of a pencil. i turned all the way down and now i am getting 26 to 35 miles a gallon. can this mess anything up because suppossingly that screw comes factory set?? Can someone give me some advice!!!
Apr 25, 2013 at 3:07 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
lightly seat eh screw with a screwdriver then use a vacuum gauge and get highest reading tha tis the corret way to set it. it will probably go out a turn and a half or around there. what you did was ok
Apr 26, 2013 at 12:06 AM
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TIGER2126
  • MEMBER
  • 2 POSTS
Ok that makes me feel better thank you very much
Apr 27, 2013 at 6:58 AM
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