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No Start after top end rebuild

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Old Oct 24, 2006 | 07:10 PM
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Default No Start after top end rebuild

I just rebuilt the top end, stock parts just replacing a blown headgasket.
It turns over speratically..medium/fast then kinda slow likes its struggling to turn over. New optima redtop and the starter is fairly new. It almost turns over enough where it should fire. I set the lash via Lars tech paper. The engine wasnt hard to turn over manually. So it comes down to the timing, but it doesnt make sence that it would turn over so odd if the timing was off.. or dose it?
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Old Oct 24, 2006 | 07:19 PM
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yes it will you need to recheck your timing
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Old Oct 24, 2006 | 07:38 PM
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I'd almost be willing to bet you dropped your distributor 180 degrees out. A second thing to check (assuming your lifters were as old and tired as the rest of the motor was before you took it apart) is the spring tension on your lifters- if they're weak it'll make it real difficult (especially for a novice) to get a good valve adjustment- you might have over-tightened them. Good luck.
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Old Oct 24, 2006 | 08:19 PM
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For sure are you getting spark? If it were 180 out it would probably be backfiring thru the carb also if the timing is too far out it will sometimes backfire thru the carb and for sure when the timing is off it will crank like it is struggling. First thing confirm spark to the plugs.
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Old Oct 24, 2006 | 09:36 PM
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Sounds like timing is too advanced.
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Old Oct 24, 2006 | 10:37 PM
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i say look at dist first......180 out sounds like a first item to rule out
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Old Oct 25, 2006 | 12:29 PM
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In it's simplest form 4 things are needed to run.

Fuel
Compression
Spark...
at the right time.

If you have those 4 it will run. Check for each.
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Old Oct 25, 2006 | 02:48 PM
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Originally Posted by birdsmith
I'd almost be willing to bet you dropped your distributor 180 degrees out....overtightened them....

First guess distributor is out 180.
Second guess; valves lashed too tight.

Confession: I've done both.
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