General Category > Quadrajet Carb Talk and Tips
Idle tuning
von:
Could be your timing marks are off and you're getting a false reading.
55 Tony:
--- Quote from: Cliff Ruggles on August 14, 2017, 01:05:07 AM ---Was the cam ICL set according to the cam card or did you just advance it 2 degrees from the "dot to dot" position?
--- End quote ---
First degreed the cam then advanced it 2* from dot to dot.
55 Tony:
--- Quote from: von on August 15, 2017, 02:55:17 AM ---Could be your timing marks are off and you're getting a false reading.
--- End quote ---
Nope, timing mark is lined up with the key on the crankshaft.
Cliff Ruggles:
I'm not sure why you would correctly degree a cam on a tight LSA that already uses an advanced ICL then advance it some more? I would move the cam back to the correct position since you are seeing high cranking pressure and difficult hot restarts with relatively low initial timing numbers.....Cliff
55 Tony:
Like I said, my first build/rebuild. Someone with a lot of engine building experience was giving me help online. Comp Cams said all it would do is decrease the power band of the motor by about 500 rpm making more low end torque. Since then I've found I have all the torque I could possibly use plus more and if it ever comes apart I will install it straight up. It's not that big a deal to make me want to take it apart unless I have to because I don't rev it over 5500 anyway.
How does this factor in with the lean idle anyway?
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