Help please '84 Tach.

[roger longman]

My sons tach has stopped working. He had the dash replaced about a year ago and the tach stopped after 4 months, but came back the following day and has woked perfectly well for the last 8 months. Lights and every thing else perform OK. Any ideas would be appreciated. Electrics are a minefield to me. Roger.

[geekinavette]

My sons tach has stopped working. He had the dash replaced about a year ago and the tach stopped after 4 months, but came back the following day and has woked perfectly well for the last 8 months. Lights and every thing else perform OK. Any ideas would be appreciated. Electrics are a minefield to me. Roger.

Does the tack display disappear all together, or just reading zero?

[vetteoz]

Is the tacho wire secure on the dist cap ? (white wire )
or at the tacho filter blocked to the top bellhousing bolt ; drv side

[roger longman]

Does the tack display disappear all together, or just reading zero?

It just reads zero. Thanks. Roger.

[roger longman]

Is the tacho wire secure on the dist cap ? (white wire )
or at the tacho filter blocked to the top bellhousing bolt ; drv side

He'll be checking those out, after work. Thanks. Roger.

[geekinavette]

Yeah check out the tach/filter connection to the distributor.

[roger longman]

Will do. Many thanks. Roger.

[roger longman]

Yeah check out the tach/filter connection to the distributor.

YES, that's what it was. Many thanks to all. ROGER>

[Schrade]

YES, that's what it was. Many thanks to all. ROGER>

What was the test? Did you find it with the multimeter?

[roger longman]

What was the test? Did you find it with the multimeter?

Hi Schrade, No, visual, the wire was detached. Thanks. Roger.