C2 Idle Issue

[Rob M.]

Looking for some help.

Last night, I started the car, a 66 327/300, (after a one week break) and noticed that the engine was idling about 300-400 RPMs faster than normal with choke. After the car warmed up and we had driven a little, the engine was still idling way to high @1100 RPMs when it usually is at 650. NO adjustments had been made at all to the engine from a week ago when the car idled normal. This just happened out of the blue. I let it sit over night and started it again this AM and have the same problem. Any thoughts?

Thanks,
Rob

[William V.]

Re: C2 Idle Issue

Check to see if the fast idle cam is sticking. It should drop down freely once the choke pull-off has vacuum and/or the engine warms up. A little carb cleaner may be needed to free the cam.

(Engine off)With the choke wide open and a little throttle applied the cam should drop quickly when lifted and released.

[Rob M.]

Re: C2 Idle Issue

Bill,

Thanks for the tip, you're most likely right - I didn't check. I'll give it a try/look.

Regards,
Rob

[Verle R.]

Re: C2 Idle Issue

Also check for a vacuum leak.

Verle