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Yazaki cluster 1986 v. 1987 - Voltmeter problem 700 1986

uid 49372's pic
posted by  740_dan on  Sun Nov 21 07:07 CST 2010
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last visit: Thu Aug 28 13:10 CST 2014
[RELATED]

Update:

1. Piggy-back power cable at battery did have turquoise corrosion and copper terminal-ring was on the verge of breaking off from 25 years of stress. Cut wire back and replaced with new ring terminal-- Voltmeter where it should be (more or less). Thanks Bill!

2. I've concluded the 1986 cluster is *not* compatible if one wants to keep the 1986 speedo (my objective) because the circuit board and a few gauges are revised. Swap should work fine if it's simply plug 'n play as both accept the same connectors to cluster.

However, gauge to gauge replacement is frustrating. The coolant gauge on 87' is four terminals instead of 86's three. Looks like 87' coolant gauge also has a voltage stabilizer unlike the 86'.

Speedo on '86 worked in '87 but it lacks an extra screw terminal (center of guage) that likely makes an incomplete circuit that caused the voltmeter and the warning lights (at start-up) not function.

Gauges individually that are identical:

Voltmeter

Clock

Turbo boost

Gas


Unsure about tachometer compatibility.

This concludes this discussion with myself...





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