Using a standard ignition coil
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Member
Joined: Nov 2008
Posts: 142
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From: Indiana
Year: 1987
Model: Cherokee
Engine: 4.0
I have an 87 Cherokee 4.0. I know the connectors look a little different, but thats easy enough to change... but has anyone tried hooking up a standard ignition coil?
Last edited by RCB; Dec 5, 2008 at 01:36 AM.
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Joined: Nov 2008
Posts: 173
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From: Kennedale, Tx
Year: 1995 2WD & 1988 4WD
Model: Cherokee
Engine: 242
Yes, I spliced in this oil filled coil no problem -
About once a year I had to replace the stock type epoxy filled coil witch is mounted to the block and would absorb heat and crack inside.

About once a year I had to replace the stock type epoxy filled coil witch is mounted to the block and would absorb heat and crack inside.

CF Veteran
Joined: Aug 2008
Posts: 1,313
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From: palm desert,ca
Year: 1987
Model: Wagoneer
Engine: 4.0




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CF Veteran
Joined: Nov 2008
Posts: 2,473
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From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
I just did a test of this to day
I soldered a small nail to the end of each wire
the nails fit in the connector just right they are small round holes
the blaster coil worked well now i need to fab it up permanent
I soldered a small nail to the end of each wire
the nails fit in the connector just right they are small round holes
the blaster coil worked well now i need to fab it up permanent
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
Member
Joined: Nov 2008
Posts: 173
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From: Kennedale, Tx
Year: 1995 2WD & 1988 4WD
Model: Cherokee
Engine: 242
Alright, I'll get some pictures in the daylight .
As the coil gets heated up the epoxy and windings begin to expand and contract as it cools causing the internals to crack and separate causing the car to die suddenly, but restart after several minutes of cooling untill there is no contact at all inside the coil windings which transforms the battery's 12 volts to the thousands of volts needed to spark the spark plugs.
As the coil gets heated up the epoxy and windings begin to expand and contract as it cools causing the internals to crack and separate causing the car to die suddenly, but restart after several minutes of cooling untill there is no contact at all inside the coil windings which transforms the battery's 12 volts to the thousands of volts needed to spark the spark plugs.
Renix Super Guru
Joined: Mar 2008
Posts: 24,653
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From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Pics of the soldered nails. I knew the oil filled coils would replace the stock coils but got lost with soldered nails.
CF Veteran
Joined: Nov 2008
Posts: 2,473
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From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
but the stock coil plug has two small holes so I found two finish nails that fit in the plug
solderd one on the end of each wire
and wierd the other end to the coil (+to+) and (-to-)
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
here is a pic
just unplug the stock coil and slip one nail in each hole on the plug
and you blaster coil is hot then plug the coil wire into the distributer
I scavenged some old plug wire part to make it work
just unplug the stock coil and slip one nail in each hole on the plug
and you blaster coil is hot then plug the coil wire into the distributer
I scavenged some old plug wire part to make it work




