Classic/Antique Car Repair/R-R Corniche 1972

Advertisement

Expert: - 7/30/2009


Question
QUESTION: When starting the automatic choke engages but takes ages to return to idle. When I first had the car I just flipped the the pedal and it idled straighaway,now it does not.
Robert

ANSWER: Hi Robert:
It shouldn't take but a few minutes to warm up during winter and even less in the summer. The automatic choke could be sticking. Open the hood and manually tap it with you finger. Work it a few times to see if it releases with ease. I put a little silicone spay on mine every now and then.

---------- FOLLOW-UP ----------

QUESTION: I have tryed the silicone but it still does not disengage.
If I put a finelong scredriver inbetween the works I can release the cam, then it idles fine.
The it ideas.
Robert


Answer
HI Robert:
You could have a bad sensor, but before you replace it, try really stumping the pedal to the floor quickly and releasing it. The RR should only require a light tap of the pedal, but if the choke is bad this will certainly release it. If so, you may need a new choke or just keep working it for a while until she is back to normal. In some old cars the only way to release the choke is to quickly floor the pedal.

Classic/Antique Car Repair

All Answers

Answers by Expert:

Ask Experts

Volunteer

Vern Bullock

Expertise

Visit my website at: http://www.classytransportation.com/ I can answer most questions about autos built in the 60's 70's and 80's. Specifically, Lincolns, Rolls Royces and the Excaliburs. Mechanical issues and technical questions are my expertise. I also have a general knowledge of most older automobiles. Keep in mind, I can only provide answers if the questions are very specific and complete. Without details, I can only speculate and that's not good for solving your problem.

Experience

I have owned and maintained Silver Shadows for over 10 years now. I find most mechanics and even Rolls Royce mechanics have very little knowledge about these automobiles. I have researched these cars in quite a bit of detail and can pretty much tell you what is wrong, if you can describe the behavior in detail. I have saved quite a few RR owners a lot of money and aggravation due to improper diagnosis. I am the owner of Classy Transportation, LLC a luxury limousine service specializing in antique cars, classic cars, vintage cars and exotic cars.

Organizations
Classy Transportation, LLC Limousine Service.

Publications
All around the Internet

Education/Credentials
I hold a BS degree in computer science and a MS degree in mechanical engineering.

Awards and Honors
I regularly compete at car shows and average around a dozen awards annually.

Past/Present Clients
See Web site at: http://www.classytransportation.com/

©2012 About.com, a part of The New York Times Company. All rights reserved.