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Classic/Antique Car Repair/235 chevrolet engine
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Question
Hello! I have a 1958 chevrolet 235 engine, all original including carb, distributor, ignition, etc. It is in my 37, and has worked flawlessly for over 13 years! It drives well in town, as well as on the highay at 75. However, recently it started to jerk and stall at high speeds on the highway. It begins to jerk and shudder over 50mph, and then dies. I have rebuilt the carb, changed the points and condersor, replaced the vacuum advance, and timed it. ??? I have been done timing the same way for over 10 years by leaving the vacuum advance connected, and timing by using the first line clockwise from the flywheel ball indent. Any ideas?
Thanks, Kevin
It sounds like it is running out of fuel. The cause could be a bad fuel pump, a fuel filter is so equipped, or a plugged fuel pick up in the tank restricting the flow of fuel. It is possable that it is ignition but I think that I would check fuel pressure ad volume first.
Brad
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| Comment | Thanks! It turns out it was the fuel pump. The fuel filter always looked under full pressure when I checked it, but I could not while driving. Looks like it was starting to go out and lose ability to pump at higher speeds. | ||
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Answers by Expert:
Brad Sears
Expertise
All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.
Experience
Automotive tech instructor.
Syndicated auto columnist 1970's though the early 1990's.
Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's
TV Show "Last Chance Garage" 1980's PBS-TV syndicated.
Auto instructor for the following companies:
Fram
Autolyte
Holly
Carter
AMF
Ford Motor
University Of Conn
Blue Hills Technical School
Sugar River Technical Center
Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.
Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.
Education/Credentials
More than I care to remember.
Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.
Awards and Honors
Moto Award winner. And much more.
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