Timing and Idle RPM
 

Anyone know what RPM I should use for setting the ignition timing on a 250ci 4.1L L6?

Also, any Idea for a normal Idle speed.

:flag:

Uh, usually there is a sticker in the engine compartment that has that info on it.

Forgot to mention...
 

I forgot to mention that due to past bodywork, there is no longer VECI labels. The only label under the hood is the Jack Mount instructions.

Thanks

oh IC. My Chilton's has a chart with idle speed on it & guess what it says for your engine? Note: See underhood sticker. Thanks for the help CHILTONS!!! What I can infer from the rest of the chart, idle speed with an auto is 650 and a stick is 700. It also says the timing should be 8 degrees

:)

Thank you for your help!! Since I don't have a garage, I'll wait for some warmer weather to set the timing. It's pretty cold in North east Ohio right now.

Thanks Again,

Sure! Just be sure to note that these are NOT the exact numbers in the book - it didn't have the originals. I infered it from the rest of the chart. Good luck!

Thanks again.

I haven't figured out where to change the idle speed on my vaccum controlled carb. So I connected the the tachometer to the TACH lead on the distributer. Removed the vaccum line from the distributer and plugged the loose tube, loosened the dist. tightening bolt. Had my wife apply a little throttle to keep 700 RPM, shined the light on the balancer and lo and behold 8 deg BTDC. I previously set the timing by listening to the engine until is sounded slow and smooth, and couldn't believe my eyes. How's that for luck?

Question. Does it make a difference is someone is applying throttle as opposed to setting the idle speed?

You guys are great!

It's best to do it at idle speed. The range you were working with at 700RPM will not affect it too much.

On the idle screw whck by the acclerator cable linkage on the carb. You will see where the cable hooks up to the arm linkage. In front of that arm should be close to a screw that you need to adjust for the idle speed.