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Fuel systems Q&A Carbs, injection, tanks, lines, pumps, everything fuel system related!

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  #11  
Old 04-07-2017, 06:39 AM
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53 stickfigure 53 stickfigure is offline
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I dont have a tachometer but I'd guess I'm idling between 500 and 600 rpm. I need a 6 volt to 12 volt converter and a big tach. My eyes aren't what they used to be.
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  #12  
Old 04-07-2017, 09:35 AM
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Quote:
Originally Posted by Dr Crankenstein View Post
I assume you have the original 235 and three speed manual. What's your idle speed? (Should be down around 500 RPM.) If the throttle is open too much at idle, you'll draw fuel at "cruising" volume...

.
If it's a '53 3 speed with the original engine that would still be a babbit 216. '53 was the conversion year, with only PowerGlide equipped vehicles getting the full pressure 235. They went across the board in '54.
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Old 04-07-2017, 06:53 PM
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Thanks for enlightening me, BED.

53, I think a tach is a required tool. Set your idle mixture for highest RPM (or highest vacuum reading) then back your idle speed/throttle screw down... repeat as necessary...

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Old 04-07-2017, 07:52 PM
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Quote:
Originally Posted by Blue Eyed Devil View Post
If it's a '53 3 speed with the original engine that would still be a babbit 216. '53 was the conversion year, with only PowerGlide equipped vehicles getting the full pressure 235. They went across the board in '54.
Thats what i thought too but 53s, both 3 speed and powerglide are 235s. Powerglides had a few more horsepower than the 3 speed cars. The old chevy shop manual doesnt even list a 216 in a 53 car. I ran my engine numbers and its a low pressure 235. Also you can identify a 216 and a 235 by the lifter gallery cover.
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Old 04-09-2017, 10:56 PM
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The first full pressure 235 Chevy six was installed in 1953 PowerGlide equipped passenger cars only. In 1954 everything went full pressure. Easily researched - http://www.patricksantiquecars.com/a...6-for-235.html
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