Print Page - idle speeds 66 Deville

Title: idle speeds 66 Deville
Post by: spolij on February 24, 2019, 08:31:34 PM

The shop manual says the normal low idle is between 480 and 500. I saw it once before but now I can't find it. What is the cold idle set at.

Title: Re: idle speeds 66 Deville
Post by: DeVille68 on February 25, 2019, 03:13:27 PM

480 in drive with A/C on.

Best regards,
Nicolas

Title: Re: idle speeds 66 Deville
Post by: spolij on February 25, 2019, 07:45:20 PM

Hi Nic
See post i found that. But what about the cold idle. When you first start the car?

Title: Re: idle speeds 66 Deville
Post by: DeVille68 on February 26, 2019, 02:13:41 AM

sorry about that. I don't have that information for 66 but the book for my 68 says 1900-1950 rpm. I guess the settings are about the same for 66.
Best regards,
Nicolas

Title: Re: idle speeds 66 Deville
Post by: savemy67 on February 26, 2019, 03:53:28 PM

Hello John,

For 1967, the shop manual calls for 1700 to 1750 RPM in neutral. But your carburetor is different than the one used in 1967. I don't have a 1966 manual, but you may find the information in the engine, fuel section.

Also note that the 1967 procedure calls for the engine to be fully warmed-up, and the adjustment made with the choke fully open and the fast idle screw on the highest step of the fast idle cam. Again, '66 may be different.

I think, if you can get a fast idle RPM in the range of 1500, you should be OK.

Respectfully submitted,

Christopher Winter

Title: Re: idle speeds 66 Deville
Post by: spolij on February 26, 2019, 07:34:56 PM

Thanks all
haven't stood next to a 60's car in a long time.
Mine was only 5 years old.

Cadillac & LaSalle Club Discussion Forum

Cadillac & LaSalle Club Forums => Technical / Authenticity => Topic started by: spolij on February 24, 2019, 08:31:34 PM