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Classic/Antique Car Repair/1964 Chev C10
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Question
I recently purchased this truck. It has a 230hp straight 6 motor that has been rebuilt by the previous owner including a "carb kit". The truck drives and rides beautifully. The problem with it is that after about 15 miles the truck "coughs" - when I was driving it home it back-fired, spewed sparks from the exhaust and eventually stopped altogether. We had to leave it in farmers yard. The next morning when I went to get it, it started up and drove as good as could be, but after about another 15 miles it started all over. It keeps "coughing" (missing?) I finally got it home but that was a long 80 mile trip. If it stops from this it will restart readily and run until the next episode. What is the problem?
Hi Tom:
The problem could be a number of things, but since it only happens
about every 15 minutes, this would lead me to belive it may be caused
by the truck warming up or getting hot. You should check a number of
things to try to pinpoint the exact problem, starting with the fuel line.
1. Could have trash in the fuel line that only gets to the carb after about 15 minutes.
2. You could have spark plug wire arcing once they are warm. Check plug wires or
not old and brittle (look for white dust on wire if arcing) and the cap are on the
plugs tight.
3. Take out one of the plugs and inspect it for carbon build up or oil.
4. Also check the distributor to make sure the points are good. No wear or sticking.
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Answers by Expert:
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. A Touch Of Class Limousine Service. Blue Diamond Limousine Service. Capital City Sedan 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/
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