1994 RR Classic 4.2 No power to coil - Land Rovers Only

PARIDAH · 02-11-2007, 04:49 PM

I purchased a 1994 RR Classic. I was recieving intermittent spark. The truck will not start. After checking and running 12v directly to the coil

. I now do not have power to the coil either. Please help where should I begain to look

. I have also purchased a Mallory Dizzy Unilite, coil, and ballast.

Disco · 02-12-2007, 03:42 AM

My long range diagnostics of your coil is that you have a problem on the ignition side of the coil. Check for loose wires or a poor earth, hence the intermittant spark.

OkieRover · 02-12-2007, 06:33 AM

And fuses.

PARIDAH · 02-12-2007, 02:53 PM

Quote:

Originally Posted by OkieRover

And fuses.

Exactly what fuse should I check and where is it located?

OkieRover · 02-13-2007, 07:18 AM

Inside the cab. On the fuse block there is a coil fuse. It's labeled with a lightning bolt over an engine I believe.

PARIDAH · 02-28-2007, 05:02 PM

Sorry it took soo long for an update. I replaced the 10amp fuse in the fuse block. Now I have power to the coil. I replaced the original coil with a Mallory coil and ballast. I still have no spark from the coil to the dizzy. I removed the HD lead held it close to ground, and no spark. Does anyone have the correct wiring configuration i.e. white black and white connection in relation to the + and - leads on the coil? Thanks

OkieRover · 03-01-2007, 06:52 AM

That truck is at home.
I'll take a pic when I get there for you. I'm not sure if our color wires are the same but I'll look at it and send ya pic tonight.

PARIDAH · 03-10-2007, 11:19 AM

Today we had some nice weather. I got Mallory Dizzy&Coil installed. New Battery. I installed the Mallory leads as follows G/BW/BW to neg. post on coil and 1 lead from neg. to ground on fenderwell, w to ballast resistor in/ w to pos. lead on coil red to pos. lead on coil. I have no power to coil when I turn the engin over. Once the key is released I see a quick flash on the test light. I have run a lead directly to the positive side of the coil and still have no spark. what is going on. Bad ing switch? I am lost.

PARIDAH · 03-10-2007, 01:24 PM

Following recommendations from board members via tele phone. I removed the cowl from the steering colum secured the back of the ignition harness, and now have power to the positive side of the coil.

I still have no spark, the coil got hot cranking it over for a while.

Any idea why I still dont have a spark, and the heat issuer with this mallory electronic coil?

Thank Paridah

tlry00 · 03-10-2007, 04:12 PM

I had the same problems, and after exhausting all ignition system avenues... I replaced the alternator and she fired up perfect

02-11-2007, 04:49 PM	#1 (permalink)
PARIDAH Member Join Date: Dec 2005 Posts: 7 Gallery: 0	1994 RR Classic 4.2 No power to coil I purchased a 1994 RR Classic. I was recieving intermittent spark. The truck will not start. After checking and running 12v directly to the coil . I now do not have power to the coil either. Please help where should I begain to look . I have also purchased a Mallory Dizzy Unilite, coil, and ballast.

02-12-2007, 03:42 AM	#2 (permalink)
Disco Super Moderator Join Date: Dec 2004 Posts: 1,819 Gallery: 0	My long range diagnostics of your coil is that you have a problem on the ignition side of the coil. Check for loose wires or a poor earth, hence the intermittant spark. __________________ No hand signals, driver playing with his transfer Knob.

03-10-2007, 11:19 AM	#8 (permalink)
PARIDAH Member Join Date: Dec 2005 Posts: 7 Gallery: 0	Install complete Today we had some nice weather. I got Mallory Dizzy&Coil installed. New Battery. I installed the Mallory leads as follows G/BW/BW to neg. post on coil and 1 lead from neg. to ground on fenderwell, w to ballast resistor in/ w to pos. lead on coil red to pos. lead on coil. I have no power to coil when I turn the engin over. Once the key is released I see a quick flash on the test light. I have run a lead directly to the positive side of the coil and still have no spark. what is going on. Bad ing switch? I am lost.

03-10-2007, 01:24 PM	#9 (permalink)
PARIDAH Member Join Date: Dec 2005 Posts: 7 Gallery: 0	I now have power to coil Following recommendations from board members via tele phone. I removed the cowl from the steering colum secured the back of the ignition harness, and now have power to the positive side of the coil. I still have no spark, the coil got hot cranking it over for a while. Any idea why I still dont have a spark, and the heat issuer with this mallory electronic coil? Thank Paridah

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02-28-2007, 05:02 PM	#6 (permalink)
PARIDAH Member Join Date: Dec 2005 Posts: 7 Gallery: 0	Sorry it took soo long for an update. I replaced the 10amp fuse in the fuse block. Now I have power to the coil. I replaced the original coil with a Mallory coil and ballast. I still have no spark from the coil to the dizzy. I removed the HD lead held it close to ground, and no spark. Does anyone have the correct wiring configuration i.e. white black and white connection in relation to the + and - leads on the coil? Thanks

03-10-2007, 04:12 PM	#10 (permalink)
tlry00 Member Join Date: Sep 2004 Location: Indiana Posts: 30 Gallery: 0	I had the same problems, and after exhausting all ignition system avenues... I replaced the alternator and she fired up perfect

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