dbduke
Go Kart Champion
- Location
- Cambridge, MA
I don't know if anyone else has posted this, but I've definitely read and seen the NSP indigo gauges being off a little. I got in touch with NSP and they told me that the needle sitting a touch in vac is due to overtightening the square barb in install. They suggested the following:
This worked perfectly for me. Don't over loosen the nut on the back, a hafl turn will suffice. Then loosen the square barb until its hand loose, then retighten as you watch the needle. When it returns to the zero block, retighten the nut and reinstall.
Another problem I had was that when turning off the car, my gauge would sit just below zero, but if you tapped on the glass it would pop back. This may have resulted from my initial overtightening of the bolt. NSP suggested the following:
I had to move the crescent to the stop in the positive (boost) direction. After that it would pop back to zero. :happyanim:
Steve from NSP said:1. Loosen the nut that touches the back of the gauge. Take another
wrench to hold the square brass barb and rotate it gently so the
needle moves to the zero block.
2. Holding the barb in place, retighten the nut - Don't over tighten.
This worked perfectly for me. Don't over loosen the nut on the back, a hafl turn will suffice. Then loosen the square barb until its hand loose, then retighten as you watch the needle. When it returns to the zero block, retighten the nut and reinstall.
Another problem I had was that when turning off the car, my gauge would sit just below zero, but if you tapped on the glass it would pop back. This may have resulted from my initial overtightening of the bolt. NSP suggested the following:
Steve from NSP said:Check for needle binding - peel back the red sticker on the back of the gauge. Use a small screwdriver to move the crescent-shaped brass piece towards the center or the outside of the gauge. The needle should snap back into position after you remove the screwdriver. If it doesn't then there is a problem.
If you move crescent (needle) to the stops (the end of its movement) you get the needle to adjust a bit. If you are within 1 needle width of the middle of the zero block then you are within our production tolerance.
Do it fairly gently or the gearing will skip a tooth.
I had to move the crescent to the stop in the positive (boost) direction. After that it would pop back to zero. :happyanim:
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