Duraspark Install

[Twister]

Well i got power back but it sill wont crank. I am got the rectangle plug all hooked up (alt, oil pressure and coolant temp). My and my brother are going to go through tomorrow and rewire everything and check everything with a voltmeter.

 

[Twister]

Ok, my starter is ok. I rewired the dizzy wires and the wires for the 2 prong plug. Me and my brother went through and used a volt meter and all wires are correct with the run and start position. My truck will now turn over if I jump the solenoid but it will not turn over with the key. My brother doesn't think I have spark; hooking up an old plug to the dizzy and set next to the block there's no spark.

Also the stock TFI gets hot as- well you know, even 10min after unplugging it.

If anyone has any suggestions it would be very helpful and appreciated.

 

[Twister]

No one?

 

[kimcrwbr1]

Check your start wire at the starter solenoid for power with the key in the start position. Check the power to the coil with the key in the run position you should have battery voltage at the + side of the coil and slightly less on the neg side. If power is not going thru the coil it is bad. To check the coil put a spark plug in the coil wire going to the dizzy and set it on ground then crank the engine over you should get a nice even brite blue spark. If not keep the key on and take a jumper wire from the neg side of the coil and touch it quickly to ground you should get spark every time to trigger it. If you get spark and the power to the module is good then you need to test the dizzy. The black wire is the engine ground and ground for the module the orange and purple are for the pickup coil. You need continuity thru the coil and it dont matter if they are backwards as long as they dont short to ground. If the dizzy checks out then your module is probably bad. All you can do for it is make sure the wires are correct and the coil and dizzy check out then the module is probably toast. Print this out and test it in that order let us know what you find out. Once you get it to spark then the timing is another issue put he timing light on each wire plug until you find the timing mark on the damper then trace that wire to the cap and use that for #1 plug and set the firing order clockwise from there.

 

[Twister]

Check your start wire at the starter solenoid for power with the key in the start position. Check the power to the coil with the key in the run position you should have battery voltage at the + side of the coil and slightly less on the neg side. If power is not going thru the coil it is bad. To check the coil put a spark plug in the coil wire going to the dizzy and set it on ground then crank the engine over you should get a nice even brite blue spark. If not keep the key on and take a jumper wire from the neg side of the coil and touch it quickly to ground you should get spark every time to trigger it. If you get spark and the power to the module is good then you need to test the dizzy. The black wire is the engine ground and ground for the module the orange and purple are for the pickup coil. You need continuity thru the coil and it dont matter if they are backwards as long as they dont short to ground. If the dizzy checks out then your module is probably bad. All you can do for it is make sure the wires are correct and the coil and dizzy check out then the module is probably toast. Print this out and test it in that order let us know what you find out. Once you get it to spark then the timing is another issue put he timing light on each wire plug until you find the timing mark on the damper then trace that wire to the cap and use that for #1 plug and set the firing order clockwise from there.

Thanks, ill try all of that and post after i do.

 

[MRLUKE]

What is the damper?

Also, what colors are the wires for the brake lights? and where do they from and to?


Just to make sure, we are scrapping all the wires and plugs besides ac, alternator, temp sender wire, and starter, right? All the plugs: one that plugs into thing next to temp esnder wire, one that plugs into where air filter is, one that plugs into wires coming off of thing in front of throttle, and two wire plug from back of carb(2150)?

 

[dangerranger83]

Yes, anything attached to the computers connector gets taken out. Took me 15 min to rip the stuff out of my dads truck and mine.

My truck had manual guages in it so I don't have the electric wires for my guages anymore.

 

[Twister]

Well in the run position i get 8.80v on the + side of the coil and 1.50v on the - side. I got my duraspark box checked at autozone and i am getting spark from the coil. Is this what you are telling me to try to test the dizzy "The black wire is the engine ground and ground for the module the orange and purple are for the pickup coil. You need continuity thru the coil and it dont matter if they are backwards as long as they dont short to ground."?

Thank you for posting again, it seems like i am just a hair away from getting this thing to work.

 

[kimcrwbr1]

What is the damper?

Also, what colors are the wires for the brake lights? and where do they from and to?


Just to make sure, we are scrapping all the wires and plugs besides ac, alternator, temp sender wire, and starter, right? All the plugs: one that plugs into thing next to temp esnder wire, one that plugs into where air filter is, one that plugs into wires coming off of thing in front of throttle, and two wire plug from back of carb(2150)?

Thats correct all those and the O-2 sensor and knock sensor by the starter.

 

[Twister]

Well in the run position i get 8.80v on the + side of the coil and 1.50v on the - side. I got my duraspark box checked at autozone and i am getting spark from the coil. Is this what you are telling me to try to test the dizzy "The black wire is the engine ground and ground for the module the orange and purple are for the pickup coil. You need continuity thru the coil and it dont matter if they are backwards as long as they dont short to ground."?

 

[kimcrwbr1]

right it is just sending the signal to the module I believe it is call the reluctor. To check the module and coil just put a plug in the coil wire to the dizzy and set it on ground and crank the engine you should get a nice even blue spark as you crank. I am kinna concerned on the voltage to the coil you should have battery voltage on the + side and slightly lower on the neg side due to resistance. Check resistance of the coil between the pos and neg you should get .3 - 1.0 ohms then check between the coil terminal to the dizzy and either + or - terminal you should get between 8,000 and 11,500 ohms. But if you get a nice blue spark I wouldnt worry about it. Your getting close I was lucky mine is a 83 almost plug and play just had to splice one wire, once you get it timed and the carb dialed in youll be happy with the effort I am.

 

[Twister]

One question though, now that i have gotten rid of the computer, what cables should i have hooked up to my starter solenoid?

 

[kimcrwbr1]

The battery pos and ignitionaccessory to one side the starter cable to the other and the small female 90 degree fitting on the small start terminal.

 

[kimcrwbr1]

I believe they are marked B battery S starter and I from ignition switch

 

[Twister]

Ok, that is what i have hooked up.