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80 series 1HDT tacho

Tech Talk for Cruiser owners.

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Posts: 288
Joined: Sat Mar 18, 2006 4:30 pm
Location: Darwin

80 series 1HDT tacho

Post by jsttry »

Car is back with a shiny new radiator.

Next problem is tacho is intermittent. You hit the brakes and it drops down, sometimes to 0rpm. Still drives fine and no spluttering that you'd expect if it was an injector pump issue. Suspect some water has gotten into the connections somewhere as the driver floor was wet. Other than the connector on the pump, any one know where the wires would route to save me looking in the service manual?
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Post by dow50r »

reconnect the earth that comes off the battery and goes to the inner guard.
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Post by dumbdunce »

dow50r wrote:reconnect the earth that comes off the battery and goes to the inner guard.
x2. or possibly the earth off the engine.
Free air locker to the first 20 callers!
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Posts: 288
Joined: Sat Mar 18, 2006 4:30 pm
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Post by jsttry »

I would have expected lights etc wouldn't have worked if that was the case. Will check it out though. Driving home tonight tacho ended up sitting on 0rpm unless getting over approx 2000rpm (based on listening to engine) when it would raise to no more than 400rpm on the dial. definately looks like an elec fault somewhere. Just wait for the rain to finish so I can go look
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Posts: 288
Joined: Sat Mar 18, 2006 4:30 pm
Location: Darwin

Post by jsttry »

just checked, both batteries appear OK and all connections at the terminals and body are clean.

Checked service manual and tacho just says that it goes to pick-up sender. Where is this located?
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Posts: 288
Joined: Sat Mar 18, 2006 4:30 pm
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Post by jsttry »

duh, just checked again and found the earth from the battery to the body was loose. All fixed now :)
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