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11-02-2002, 05:38 PM
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#4 |
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Registered Member
Join Date: Jan 2001
Location: Clayton, CA USA
Posts: 116
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I'm back at trying to solve this and I still need some help. Following is what I've done so far:
o Timing - 6 degrees initial, 35 degrees total o Vacuum - I did 2 tests for vacuum: 1. Cranking Vacuum - Very erratic going from 0 to 4 in. 2. Running Vacuum - Still erratic, at 2K RPMs the sweep was shorter and faster. According to my book, there are 3 possibilities: 1. Carburetor or intake manifold leak 2. Burned or stuck valve 3. Broken piston or piston rings Anything else I should look at before a tear the motor apart again? Thanks for your help.
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'68 convert, 5.0 GT-40 Crate motor, C-4, Tri-Y headers, 3.25 rear gears |
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