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Friday, June 24, 2011

Edelbrock Tuning

Sarah's '71 Chevelle has been running well......but not perfectly. Ever since I had the Edelbrock carb, it has suffered from a hot start issue. Once the motor is warm and you shut it off and leave it for a few minutes, it needs to crank over a lot before it fires up again. It also smells like a bad fuel leak, and there isn't any leaks! It is like it ran out of gas, and it is very annoying and embarrassing to keep cranking it over, and over and over.

So, I did a little homework (thanks Google!), and came to realize the design of the carb and the ethanol in the fuel lead to "boiling-over" the carb - basically overheating the gas and causing the fuel to either evaporate or spill out into the intake. I installed an Edelbrock #9266 heat insulator gasket which keeps the carb cooler, and this seems to have done the trick. While I was at it, I re-adjusted the transmission kick-down cable, and she now runs great again!

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