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Discussion Starter · #1 ·
Hi, new to the forum here. I got a 93 Ram 250 of course with the Cummins. I changed the governor spring and now the truck idles around 500rpm which is lower than when i first got it. I was wondering if it was okay to leave it there or if i should bring it back up to 700rpm?
 

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i would prolly bring it back up a lil but thats just me...
 

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if your oil pressure is ok, but i agree with gary, i'd raise it
 

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Discussion Starter · #4 ·
Ok thanks for the replies looks like ill be bumpin it up in the mornin
 

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I remember reading that it is not healthy to have a low idle on these engines but I cannot find the discussion right now. I would raise it up to 750rpm to be safe.
 

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You guys that have idle at 500 RPM all have manuals? My truck is shaking like a dog trying to pass a plum pit at 500 RPM...

Mine idles at 750 RPM cold, 600 RPM warm...
 

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Low idle= cylinder wash

Turn your fuel screw in to up the idle if you can.
 

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Why'd that be? It's a function of low combustion chamber temperatures and insufficiently atomized fuel...

I would think that the better flow of a CR engine would cause chamber temperatures to drop faster at idle and stay lower, but I would also think that they would atomize better at idle. Compression's the same, right? Higher compression would help prevent wash, I'd tend to think.
 

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I like my idle up. I have mine at 825 warm and it runs smooth. I can't stand a low idle with a auto. Shakes the trim screws right out. It still goes into gear without a bang at 825.
 
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