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[Healeys] Fuel Gauge Problem - Continued

To: healeys@autox.team.net
Subject: [Healeys] Fuel Gauge Problem - Continued
From: Rick Huber <hubrick@gmail.com>
Date: Sun, 16 Jan 2011 12:04:35 -0600
Sorry, don't know how the last message got sent, somebody must have hit
something on the keyboard.

Problem - tank reads 5/8 full when empty and needle is out of sight past
full when full.

Troubleshooting.  With tank full, voltage at Battery side of gauge is 12 v,
Tank side is 1.6 v.  Resistance across gauge is 62 ohms when completely
disconnected.
                          With tank empty (out of gas), voltage at sending
unit is 7 v.
                          With sending unit out of tank, resistance at full
down position is 85 ohms, voltage when grounded is 7 v, gauge reads 5/8
full.

resistance at full up position is 1.5 ohms, voltage when grounded is 0.5 v,
gauge reads out of sight past full.

Anybody know what's wrong?

Cheers,
Rick
64 BJ8 Phase I
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