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Old 06-25-2007, 04:49 PM   #1
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Default Engine Temperature / Gauge Reading

What temperature should the gauge read for the M42 (or M44)? Mine read low a while back, so I changed the thermostat and it fixed it so it always ran exactly mid-range. However, I just changed my spark plugs and noticed that it is now reading just below mid-range. It is now halfway between mid and the next cooler tick mark.

I don't imagine that chaning the spark plugs could lower the engine temperature that much. I am now using the BKR6EQUP with Bosch wires. I think the only way the spark plugs could reduce engine temperature that significantly was if detonation was occurring, which I neither heard nor saw signs of.

Maybe I had another problem show up at the same time as I changed my spark plugs, or maybe I fixed a problem I was having by changing my spark plugs, so my basic question is: Is this where the gauge should be reading and it was reading high before (exactly straight up before)?
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Old 06-25-2007, 05:34 PM   #2
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The temp should be at the vertical mark rather than above or below. My temp gauge usually reads right on the mark or a smidge below it.
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Old 06-26-2007, 02:55 PM   #3
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what he said i had the same problem with the thermostat.
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