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Originally Posted by dima4855
The voltage is 13.83DC.
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Then disconnect idle valve electrical plug..rpm's should go over 1000rpm.
If so....reconnect and check voltage at the plug with system operational and engine warm...should see 4 to 6vdc.
Yes ?
The increase to 10btdc will help low rpm throttle response....and unless ELR (Electronic Idle Speed Control.) is working, a slight increase in rpm's.
Target idle rpm's in D is = 500.
So...if the distributor bob weights hang up in the advanced position...at 700 N/P......'D' load in idle will pull rpm's down to 500 and weak springs may then allow weights to return to stops and idle ignition timing then decays below what it was set too.. 5btdc....to something like 2atdc..... and engine stalls.
Bob weights are easy to oil and see......you can also increase spring tension, if return springs are weak.
There should be no mechanical advance under 1200 rpm.
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