distributer out of time

[Bossman78]

Hello,

My 1983 Bronco with a 302 jumped time on me this last summer. I put a new chain on it, got it all back together and it still wouldn't start. I never took the distributer out or altered it in any way dureing the process of changing the timing chain so i didn't think it would have been any diffrent once i got the timing marks on the chain gears and the #1 cylinder at top dead center.I've torn it back down to double check it and make sure i didn't miss the marks by a tooth or anything. They checked good, so i was told to check the rotor button on the distributer. I need help with where the distributer rotor button should be pointing if i have the timing marks lined up, and the #1 cylinder is at TDC.I always thought that the rotor button should be pointing at the one mark on the distributer cap. Is this right? Any help or advise would be greatly helpfull i'm lost where it comes to timing. Thanks

 

[Elmo]

If you are sure that the crankshaft mark is straight UP like at 12 on a clock. The cam mark is straight DOWN at 6 on the clock then your marks are correct I have seen times where the tension from the valve springs made it very difficult to keep the marks perfectly lined up (in the case of stock timing marks close and almost arent allowed). The rotor button should be pointing pretty close to the dist cap post that goes to the number 1 cylinder located at the front right side of the engine. Once the gears are on i turn the engine over 2-3 revolutions by hand in the direction that the engine normally rotates then ensure the marks still line up before putting the cover back on.

If all is well in reguards to the chain and gear positions then i would suggest checking compression fire and fuel.

 

[Bossman78]

Hello,

My 1983 Bronco with a 302 jumped time on me this last summer. I put a new chain on it, got it all back together and it still wouldn't start. I never took the distributer out or altered it in any way dureing the process of changing the timing chain so i didn't think it would have been any diffrent once i got the timing marks on the chain gears and the #1 cylinder at top dead center.I've torn it back down to double check it and make sure i didn't miss the marks by a tooth or anything. They checked good, so i was told to check the rotor button on the distributer. I need help with where the distributer rotor button should be pointing if i have the timing marks lined up, and the #1 cylinder is at TDC.I always thought that the rotor button should be pointing at the one mark on the distributer cap. Is this right? Any help or advise would be greatly helpfull i'm lost where it comes to timing. Thanks

Ok thanks. It's getting gas and it's getting spark as well, best as I can tell the compression is good to. If the rotor dosen't point to the #1 cylinder what would be the best way to get it there? When I had it together the motor turned over and was back firing through the carb but still didn't sound like it was firing or trying to start. I've changed the plugs, wires, cap, rotor, spark box,ignition module, and the ignition coil.

 

[Rons beast]

Hey Bossman,

Elmo is correct with all his info. Most important is that the rotor is pointed to #1 post in the dist. #1 is front of the right side, ( passenger side) of the block. It sounds like you are out of time.

Are you sure you set the timing gear marks as Elmo stated?

Good Luck

 

[Bossman78]

Yes sir, I check the marks again today. The rotor is pointing at the front passenger side headlight at this time. Should I pull the Distributer out and turn the gear till the rotor points toward the #1 cylinder? I turned the motor over manually a few times today and the marks came back together every other revelution. I started with the cam at 6 and the crank at 12, then turned it clock wise(or to the right) the first full turn the crank mark was at 12 o'clock and the cam gear was at 12 o'clock, then the next full revelution the crank gear was at 12 o'clock and the cam gear was at 6 o'clock. I really appreitiate the advise thanks.

 

[Rons beast]

Hey Bossman,

Yep.....I'm not sure how the dizzy got out of time, but you should get that rotor in the right position.

May be a good idea to pull the dizzy and check that the pin isn't sheared that holds the gear to the shaft.

Good Luck

 

[Bossman78]

Ok I'll try that thanks.

 

[Elmo]

yes when it is said for the rotor to be pointing at the #1 cilinder it is actually meant pointing to the stud that the #1 plug wire connects to the dist cap. it does not really matter whinc one just so long as the plug wires are in the right fireing order and going counterclock-wise on the dist cap. #1 can be anywhere you want it to be. hope that was clearer than it seems to me.

 

[Bossman78]

yes when it is said for the rotor to be pointing at the #1 cilinder it is actually meant pointing to the stud that the #1 plug wire connects to the dist cap. it does not really matter whinc one just so long as the plug wires are in the right fireing order and going counterclock-wise on the dist cap. #1 can be anywhere you want it to be. hope that was clearer than it seems to me.

Yes it makes good since to me thanks. It also explaines somthing to. when the problem first arose with it not starting i change the wires and plugs and the wires were in a diffrent firing order then what there supposed to have been in.i in turn put them in the right firing order and its been down hill every since. Thanks again.

 

[Elmo]

probably need to verify that the engine is actually right for the truck. At some point ford changed the fireing order for the 302. I am not sure of what year that happened. do you happen to know what order the wires were in before you changed them ? might want to go back to that order and see what affect that has

 

[Bossman78]

Yes they had one set of firing order for the non-** motors and then they had one set for the ** motors.Mine is the non-** motor. I dont recall exactly what it is right now. Since we last wrote i've taken the distributer out and got it back in time, and am now in the process of reassembling the motor to a state where i can try and start it. It will be wensday before i can have to that point though. I appretiate your continued assistence with it. Thanks

 

[miesk5]

yo,

Look @ this & Verify;

Timing, Durapark 3

Source: by horsepuller

The firing order is 1-5-4-2-6-3-7-8

Distributor rotation: Counterclockwise

But, the the order the wires are arranged on the distributor cap is:

1-3-4-8-6-5-7-2

This is because the EEC-III distributor has electrodes on both sides of the rotor. So it fires alternately from both sides. So even though it's wired in a different order, if you go back and forth from one side to the other, the firing order is the same.

Since you have a new engine, you might find this useful too:

The computer controls all the timing. EEC-III automaticaly adjusts the distributor advance. You can't set the timing by rotating the distributor. But the computer needs a reference from TDC in order to be accurate.

Here's the procedure to align the reference point:

1. Set the crank on #1 cyl compression stroke, TDC.

2. Remove cap and rotor.

3. Look at the notch in the distributor shaft and the adaptor. Now turn the crankshaft until the small notch in the shaft lines up the the notch in the adapter. If the marks on the harmonic balancer are still between plus or minus 4 degrees of TDC, the distributor is in alignment.

4. If it's off by more than four degrees, turn the crankshaft back to TDC.

5. Loosen the two bolts on the sleeve the distributor shaft goes through.

6. Insert a screwdriver into the small notch in the distributor shaft and turn it to align with the notch in the adapter.

7. Tighten the bolts in the sleeve holding the shaft. Reinstall rotor and cap.

Here's a photo of the small notch in the shaft aligned the the notch in the adapter as seen through the adapter



Duraspark 2 Troubleshooting in an 83; see page 8 and Next pages

Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums http://broncozone.com/topic/22450-new-guy-to-bronco-world-weird-ignition-coil-problem/

Duraspark 2 Wiring Diagram in an 83

Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums http://broncozone.com/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=11373

==========

Foed changed the 5.0 firing order in 94 to the 5.8

 

[Bossman78]

Ok thanks, I'll try that firing order first and see if that helps. I appretiate the advice.

 

[Bossman78]

My problem has finally been fixed, Thanks for all the advice.

 

[Elmo]

so what was the final repair that solved your problem ? posting what fixed your ride will help us and others who run across the same or simualr problem.