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Question about gauging idle RPMs

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Old 07-08-08, 08:04 AM
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redsc400
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Default Question about gauging idle RPMs

On my 1992 SC300 5MT how do I interpret the lines below the 1000 RPM level?

The first line below the 1000 RPM mark is spaced 2x the other lines on the gauge. Is this line to be read as 800 RPM or 600RPM?
Old 07-08-08, 09:59 AM
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breakb
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does anyone know what a good idle speed is also for our cars? i was playing around wit the throttle cable and tighting it up so now i'm at about 1,000 rpm at idle. should i bring it down a little?

Peace out
Old 07-08-08, 10:09 AM
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redsc400
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i am pretty sure a good range is 750-900 RPMs when the engine is at running temperature. my question pertains to how to assess where the 800 RPM level is....

a mechanic instructed me the first line below the 1000 RPM line (about 2x extra spacing between the 1000 and next mark) is actually the 600 RPM mark....not the 800 RPM level.

can anyone clarify???
Old 07-08-08, 03:16 PM
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breakb
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alright well i adjusted it so it's around 900 rpm in "D" now my car sounds like it's ready to jump off the line.

o yeah and ur question about the RPM lines. the first mark below 1 is 800 RPM i think. then the 2nd one is like 500RPM. the last one seems to be like 250 RPM.

Peace out
Old 07-09-08, 05:56 AM
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redsc400
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Originally Posted by breakb

o yeah and ur question about the RPM lines. the first mark below 1 is 800 RPM i think. then the 2nd one is like 500RPM. the last one seems to be like 250 RPM.

Can anyone confirm this?
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