At 180 degrees off, the car turns over and sounds normal, until it backfires like the neighbour shooting his daughter's boyfriend. It won't run.
http://auto.howstuffworks.com/ignition-system1.htm
At 180 off, either the distributor has been removed and replaced without marking properly, or the timing chain has stretched and slipped badly, or been replaced improperly. What you need to do depends totally on what you were working on before this happened. Either you need to remove and replace the distributor, or remove and replace the timing chain.
2007-07-05 13:14:55
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answer #1
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answered by Fred C 7
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Chevy 350 Distributor
2016-09-30 10:41:38
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answer #2
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answered by liversedge 4
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take the bolt out of the base and hold down out. Lift the distributor up turn the rotor. This is how i do it unplug the distributor plugs those three small wires under the cap remove the left front #1 spark plug have some one tap the engine crank it over a little at a time with your finger over the spark plug hole. When the piston rises on compression stroke it will blow your finger off wave your other arm so dipstick at the ingnition stops tapping the starter. Now carefully turn the engine wrench on crank pulley until the timing pointer lines up with the crankshaft mark. That is top dead center #1 and the distributor rotor need now to be pointed at #1 plug wire. Lift up the previously loosened distributor turn the rotor to where #1 wire is wiggle the rotor Lower the distributor and hope it falls right back into the hole. Reinstall the dold down and bolt tighten it a little but where you can grab the dist. Cap and turn the dist.. Now dust off the timing light . That first drop might do it put #1 spark plug back in . if the engine starts now set the timing. Repete as necessary It take me a couple of trys some times
2007-07-05 13:30:32
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answer #3
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answered by John Paul 7
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Keep in mind that distributors don't just suddenly get 180 degrees off. Verify that the problem is not something else.
At 180 degrees off, the engine will crank, but it will not start. It will probably backfire, but it may not. Resetting the distributor is relatively easy. First, remove the distributor cap and lay it aside the distributor. If the wires are long enough, you do not have to remove them. There should be a bolt and retainer at the base of the distributor that can be removed. Pull the distributor body straight out of the engine block. Rotate the shaft at the bottom of the distributor 180 degrees and reinsert the distributor into the block. Reinstall the retainer and bolt and the cap with the wires. You will have to adjust the ingnition timing properly, but that should be it.
2007-07-05 13:31:43
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answer #4
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answered by Anonymous
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The most common mistake on a small block chevy v-8 is to assume that when the timing gears are alighned dot to dot that the distributor must be alighned to # 1 firing position. Wrong!-dot to dot is the # 6 firing position-exactly 180 degrees from were it belongs. After the harmonic balancer is installed(at the dot-dot camgear installation) rotate the crank another 360 degrees to find #1 compession(firing point) for distributor #1 fire.
2007-07-06 10:07:01
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answer #5
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answered by racer123 5
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Mike 2 important things to keep in mind the first is a compression gauge and a timing light,180 degrees is either too far advanced or too retarded,in the first you will have hard starting problems,in the next you will have engine damage real soon why do you think that in engine timing you have to have it set at the correct# of degrees? I'm a chevy guy and most 305/350 motors have it set at 4 deg. either at BTDC or ATDC,look at the car mgfr. sticker for info on it.Once it is set don't mess around with it.
2007-07-05 13:24:40
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answer #6
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answered by lwr735 4
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Pull your number one cylinder spark plug. If you have a helper put your finger over the hole making a seal, if not put a rag in the hole to plug it. Bump the starter until your thumb or rag poofs off the hole. Remove your distributor cap and look at where the rotor is pointing. It SHOULD be pointing at cyl number 1 or at least very close to it. If not you gotta remove the distributor and drop it back in where the rotor lines up with #1.
2007-07-05 13:36:04
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answer #7
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answered by mikeim2 3
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To start if your out 180 degrees your engine should be backfiring.To resolve this issue you can either move all the plug wires 4 forward or move the distributator.Personally I would find top dead center by pulling the number one plug & placing a finger over the hole & cranking the engine slowly over till you feel compression.Remove finger & insert a small solid wire to feel the piston.Turn the engine over by turning the crankshaft nut till the piston is at the top of the cylinder.Remove the dist. cap and remove the dist lock nut, pull the dist out & rotate till the rotor points toward #1.Reinstall dist, if you still get backfires your pick-up in the dist might be bad.
2007-07-05 13:32:29
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answer #8
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answered by Vegas GSXR 530 1
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it will back-fire. bring timing mark to 0 degees. remove dist. cap, note where rotor is located. return rotor, start #1 wire at rotor tip location. 1-8-4-3-6-5-7-2. clockwise direction. set timing. if it back-fire start #1 wire 180 degrees across from where you started at first. all is well.
2007-07-06 02:12:05
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answer #9
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answered by good_fatrabbit 3
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obxbear2002 is a good answer. On my Ford 300 I6 it was 180 off and it stared and ran fine, just would not go faster than 50, but ran fine.
2007-07-05 13:38:00
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answer #10
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answered by NONAME 5
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