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Boost Gauge Installation 700 1986

posted by  someone claiming to be Steve A. on  Sun Aug 18 13:38 CST 2002 [RELATED]

I am installing a calibrated boost gauge in my 740. I tapped into the hose that goes to the OEM gauge with a t-fitting and ran the new tubing to the gauge. I connected the tubing to the gauge with the compression fitting, being careful (I thought) to keep the tubing tight against the inlet hole. I get no boost reading. I took it apart and confirmed that there is suction at the new tubing. I blocked the airflow to the OEM gauge in case there wasn't enough pressure to operate both, but still no reading. I am out of compression fittings. What am I doing wrong?

Thanks,
Steve, NW of Chicago






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