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Is Cold Idle Too fast ?
Here is what my 2bbl carb on the 289 does on a cold crank and I will ask my question at the end, OK?
here is my cold engine - - the outside temp around 80 degrees
http://i201.photobucket.com/albums/a...ps73a65642.jpg
pump accelerator and crank - - engine running at 1300 RPMs
http://i201.photobucket.com/albums/a...ps88094cdb.jpg
allow to idle at 1300 RPMs for approx a minute and then tap accelerator - - - engine drops to 1000 RPMs
http://i201.photobucket.com/albums/a...ps180ed207.jpg
allow engine warm to 190 at 1000 RPMs and then tapped accelerator again - - - engine dropped to 750 RPMs and idling smoothly
http://i201.photobucket.com/albums/a...ps48a6f7e9.jpg
OK, I have said all of that to ASK this question:
Considering that if I don't crank it often then the lifters drain out and will tap some at cold crank. ??will the 1300RPMs?? damage my engine while pumping up and filling the lifters - - AND - - - should I get the idle lower at initial cold crank? ALSO, is the small phillips head screw behind the electric choke housing the way to change my cold idle???
(footnote: the reason this is so long is because of my limited vocabulary - - - pic worth a 1000 words yanno?)
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a 1/4 in ratchet wrench is what i use. i set the cold idle as low as it will stay running .
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Thanks Shine, do I do that at the choke when first cranked?
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yes. remember once you hit the key the coil heats. i disconnect the choke while setting the high idle.
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will do, I"ll let you know if I'm successful - - TA
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I always used a sort of rule of thumb that cold idle be 300 t0 500 over hot idle, and the step downs on yours sound just about right to me.
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I agree with Rrumbler, although hot idle sounds high to me.