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post #1 of (permalink) Old 10-12-2002, 09:10 AM
**DONOTDELETE**
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duraspark

1983 cj7 258 I6 carter carb. replace with a holley.
next project. prev. owner replace elec. ign. with a point
DIST. for some reason.I want to go back to electonic ing.
What i have done thanks to threads.
a)figure how he wired out dist.
b)did nutter bypass
c)got a dist. coil and module from a 1982 f150 I6
Question
A)should this be a straight swap out as long as it is
wired the orginal way the electronic dist was wired
(with nutter bypass done)
b)i notice pass threads of people burning out coils
because they do not have a rest. wire to coil
will this happen to me or am i ok. if not what do i need
c) wiring from orginal electronic Ing. still in place
thanks for all the help ahead of time
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post #2 of (permalink) Old 10-12-2002, 10:08 AM
 
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Re: duraspark

<font color="red"> </font color>
1983 cj7 258 I6 carter carb. replace with a Holley.
next project. prev. owner replace elec. ign. with a point
DIST. for some reason.I want to go back to electonic ing.
What i have done thanks to threads.
a)figure how he wired out dist.
b)did nutter bypass
c)got a dist. coil and module from a 1982 f150 I6
Question
A)should this be a straight swap out as long as it is
wired the original way the electronic dist was wired
(with nutter bypass done)
b)i notice pass threads of people burning out coils
because they do not have a rest. wire to coil
will this happen to me or am i ok. if not what do i need
c) wiring from original electronic Ing. still in place
thanks for all the help ahead of time

<font color="red">_________________________________</font color>

OK, Here is the rub bub...
You are going to be lied to repeatedly about the ignition, but you are just going to get buried in B.S. over your choice for a carb!

<font color="red">a) carter carb. replace with a Holley.</font color>
The truth is, if you aren't planning on extreme angles, the Holley will work just fine.
There are a few things you might want to do to the Holley to make it even more reliable for off road use, and if you E-mail me [email protected] I'll try and help you out.
I'll need the list number off the front of the choke 'Tower' (air horn) on the front of the carb main body....

<font color="red">_________________________________</font color>

<font color="red">next project. prev. owner replace elec. ign. with a point
DIST. for some reason.I want to go back to electonic ing.</font color>

As for the Ford DuraSpark ignition...
The Ford DuraSpark is a good choice to replace Breaker Points, GM HEI or Mallory Uni-Lite.
It's cheap, reliable, easily tunable and very easy to upgrade.

I'm not sure the timing computer is a good idea. I personally think you will be better off with a distributor with full advance capability, and tuning it your self rather than letting the 'computer' do your tuning for you.

______________________

Here is the basic wiring diagram you will need for your upgrade.
http://bbs.off-road.com/wwwthreads_u...49040-Jeep.gif

______________________

Here is a parts list for your particular application...

Distributor, '78 or '79 Jeep CJ with 258 CID (4.2L) Engine. This is the distributor with full centrifugal advance.
(If you want to run the timing computer, you will need the distributor from an '80 to '90.)

Distributor Cap Adaptor, Distributor Cap &amp; Rotor, '82 Ford F-150 Pickup with 300 CID I-6 Engine.
(This particular upgrade uses a 2 piece tower connector distributor cap like Ford instead of the way too small socket connector type cap like AMC did...)

Plug Wires, '92 Jeep with a 4.0 I-6 Engine.
Everyone reports these work VERY well!

Ignition Module, '79 Jeep CJ-7 With 304 CID V-8 Engine. (this is NOT a misprint.)
The module from a '79 Ford F-150 pickup will work also. In a pinch, any of the early Ford/AMC 6 wire modules will get you home.

Resistor Wire, Auto Zone (Wells) P/N F-799.

If you want a factory replacement ignition wiring harness with all the proper connectors and wire gauges, I'm the only one I know of that handles them. Contact me privately if you are interested, as this is not a 'for sale' board.
[email protected]
<font color="red">_________________________________</font color>
<font color="red">_________________________________</font color>

<font color="red">Question
A)should this be a straight swap out as long as it is
wired the original way the electronic dist was wired
(with nutter bypass done)</font color>

'82 and '83 were wired the same way, so what will fit one will fit the other.
If you get lucky, the guy that hacked the ignition left the plugs in place, and all you have to do is install your components and plug them in.
<font color="red">_________________________________</font color>

<font color="red">b)i notice pass threads of people burning out coils
because they do not have a rest. wire to coil
will this happen to me or am i ok. if not what do i need</font color>

The coil burn out problem was because a guy on this BBS hacked up one of my wiring diagrams, and had several people grounding the module/ ignition coil, and a dead short will burn any electronic device up.
If you use the wiring diagram above, you will not have any problems.
<font color="red">_________________________________</font color>

<font color="red">c) wiring from original electronic Ing. still in place</font color>

See the answer to your first question...


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post #3 of (permalink) Old 10-12-2002, 02:33 PM
MaineJeep
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Re: duraspark

Aaron, how do I specify a 79 distributor when ordering it? Every parts store I've been to, says 78 and up all use the same one.
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post #4 of (permalink) Old 10-13-2002, 08:08 AM
brendan
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Re: duraspark

Aaron, while you're here, I had another duraspark question for you. I'm working on my sister's 83 mustang 3.8 and I notice that the duraspark module has an extra pair of wires running to a vacuum switch/sensor mounted to the fenderwell right next to the module. The switch looks just like the 10"/4" switches jeep used for the computer controls on the BBD in the 80's.

What is the function of this circuit?

thanks again, Brendan
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