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-   -   Need Help With Setting The Timing (https://67-72chevytrucks.com/vboard/showthread.php?t=141182)

jfrank133 02-16-2005 09:10 AM

Need Help With Setting The Timing
 
Ok, I Have Done Everything I Can And I Still Cant Make It Start, I Have Checked And Double Check The Firing Order And Its Correct, I Made Sure That My #1 Piston Is On Top, And I Made Sure That My #1 On The Distributor Cap Is Pointing To #1 Piston. Is There Anything Else I Must Do.

Another Question: Everytime I Try Starting And It Doesnt Start, Do I Need To Go Back And Put #1 Piston On Top. Do I Have To Do That Everytime Im Trying To Start It?

Please Help Im Drowning.

jfrank133 02-16-2005 02:25 PM

I forgot to add, that everytime i try to start it, it back fires on me, however i have fire come out of the carbuator, does this mean im close to the timing. Or does it mean that im far from it.

Ric83 02-16-2005 02:34 PM

Sounds to me like you are 180* out. The same thing was happening to me when I did my dad's. Took the dizzy out and turned it 180* and it fired right up.

hotrodhomi 02-16-2005 03:01 PM

yeah, what he said^^^

SanitysBane 02-16-2005 11:55 PM

when the number 1 piston is at TDC the number 6 is firing. hence the need to turn it 180 degrees.

JonnyTechMech 02-17-2005 03:22 PM

Be absolute that the wires are not one post off. In other words, the plug post on the distributor for plug #1 has the #6th or # 8th wire on it. This happened to me when I changed the cap, rotor and wires out and checked it 4 times. It’s easy to miss.

The trick I use is, remove the #1 plug from the engine, and stuff some toilet paper in the threshold of the plughole. (don’t laugh, it works). Then bump the engine (turn the key just enough for the starter crank the flywheel one crank; Do Not allow a whole revolution) until you hear a POW! (This means that the piston’s pressure on chamber 1 has pop out the paper and is a TDC. Then check where the rotor is pointing on the distributor.
Correct if necessary and reinsert the plug.

This is a old shade tree mechanic trick and it’s flawless if you pay attention to what you’re doing. Plus it fun to watch someone spit up their beer when the toilet paper fires out. It scares the #%@& out someone not expecting this to happen. I WOULD NOT recommend scaring children, elder’s or your wife or girlfriend, unless you want to suffer the consequences. But for someone drinking up all the beer; DO IT!!!!!


JonnyTM

us111 02-18-2005 03:11 PM

wont start
 
jonny is correct,,that way you are making sure you are at TDC at the correct time,THEN make sure your pointing at #1 cylinder.sounds like you are at TDC on the wrong stroke which will make it 180 off,will not start,and will backfire..although he is right about the TP method being fun if you have help they can hold there finger over plug hole,when they feel air pushing that will be TDC..not as much fun but works..lol :lol:

mine did the exact same thing,,just simply had it 180 off... :)


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