I recently purchased a 1965 Corvette 327. It runs great, but when I shut it off, it runs on, sputters and then eventually will shut down. What causes this and what can I do to correct it?

Asked by EricGP Sep 07, 2015 at 01:11 PM about the 1965 Chevrolet Corvette Convertible Roadster

Question type: Maintenance & Repair

2 Answers

45,195

Wow! What a car- yeah, what he said- but understand, you will have fuel problems trying to use pump grade modern gas, most of which has ethanol- and it could be that you might need to adjust or rebuild the carb- to cure the dieseling- sometimes an old carb will continue to drip even when the ignition is switched off- in short, everything must be perfect-

1 people found this helpful.
51,265

Not all gas stations in the U.S. of A. put in ethanal. Yes the older engines need work to run on todays available fuel. Correct on the old heads. The old leaded fuel protected the valves and valve seats from pitting. Unless you get new valves and valve seats, you run a chance of burning valves. Have the timing checked also and get the carb rebuilt and perhaps new jets. Better or hotter plugs may be called for along with a hotter coil. My 69 does this also, but I have high compression and am running dual quads. If you have a stick, leave it in gear and start to engage the clutch when you turn it off. That will stop the engine. If your cars has a slush box, leave it in gear, give it a little gas and turn it off. That will keep the engine from dieseling or running backwards. That should help for now. My first Corvette was a 1965 327. Really loved it but without A/C in So. Ca., we traded it in on the 69. Still have it.

Your Answer:

Corvette

Looking for a Used Corvette in your area?

CarGurus has 1,060 nationwide Corvette listings starting at $15,871.

Postal Code:

CarGurus Experts

  • #1
    John Carson
    Reputation
    5,260
  • #2
    Vincent Parker
    Reputation
    4,750
  • #3
    dandyoun
    Reputation
    1,420
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Dodge Charger
38 Great Deals out of 645 listings starting at $4,888
Used Porsche 911
12 Great Deals out of 322 listings starting at $21,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.