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Mud Scrambler - Must be Red Dents are fine, some rust fine

found exactly what I was thinking for a "Relay Gang Box"

Water resistant to boot !

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It's rained and I'm ready to ride ... so been back on this project Jeep.

Winch motor contact stud was broken loose, so new Warn motor.
Figured out where to remote mount the control box and made new wiring harness for remote.
Also 7 way towing plug.


Fished cables for power and ground inside frame from battery to winch. (sounds easy but took hours)

Pic shows testing before I mount up the rear winch bumper.

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Figured out the Blue Ox diode for flat towing and using brake lights of the Scrambler
Fished wires inside frame to front bumper for towing plug.
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Welded up the holes in windshield frame where old light bar was and also PO had installed bikini top channel to front face of windshield.
Took awhile to blend all the welds.
Nutserts for Whitco light bar mounting and fished temporary wiring inside frame.
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It rained this weekend, so great for shop time.

Got dash pulled and wiring labeled.
Of course keeping important factory wiring.

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Had already removed the factory computer & wiring.
Removed the external voltage regulator and ignition.
Old crappy stuff to give problems later.

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Got the Renegade dash applique GLUE removed. The 3M adhesive & stripe remover works great. No heat required.

Probably going to have to modify the defroster duct for the Go light wired remote control switches to fit.

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Didn't like how the fuel pressure line was near exhaust manifold. :eek:Hose is original and kinked and hard as rock.
The metal line on AMC V-8 is on drivers side and the under motor tube interferes with oil filter removal and hits motor mount.
So gotta find my benders and make new line.
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Did install one NOS item.... rare Scrambler tailgate mat from JA.

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Thanks Randy :)
Building modified is more fun & challenging than original builds / refresh.

Anyone know how to make the MSD digital 6AL ignition box work with the factory tach?
Best I can narrow down...the dizzy in this AMC360 is from 74-76 as it's electronic... think Mud Scrambler old ignition is a duraspark.

Does the factory tach sense voltage variation?
The MSD sends pulses.

I have this MSD Tach adapter # 8920 left over from 1999 big 1983 Scrambler build.
The factory tach in 83 Scrambler worked off the Edelbrok MPFI with DUI HEI off the tach signal terminal.


I would put a HEI & 4bbl in Mud Scrambler...but not sure if I want dump coin in old motor.... One day want modded Chevy 6.0 :)

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See post #68 above.

A dizzy swap means matching cam gear as AMC V-8 are notorious for eating.

That would lead to new intake & 4bbl.

All doable, but with all the rain we've been getting... I'm ready to sling some MUD :)


Anyone know how many amps that the Motorcraft electric choke draws?
Trying to keep wiring as simple as possible and hope it doesn't need relay.
 
Sounds like you're going to be using the MSD then. At least the digital box has a main connector that makes a replacement of the module easy.... :headbang:

The factory tach is current sensing which that adapter you have should work.
 
Looks like a fun project. I've been considering a DUI for my wagon but I keep hearing about the gear issues. You may have sealed that deal for me [emoji26] I really like the DUI dizzies
 
mysunnshine said:
Sounds like you're going to be using the MSD then. At least the digital box has a main connector that makes a replacement of the module easy.... :headbang:

The factory tach is current sensing which that adapter you have should work.
Click to expand...

Do you see many problems with the MSD 6AL ?
I was thinking of mounting it were the factory computer used to live and that's tough real estate to access.
Want to keep out of engine compartment.

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gazzo said:
Looks like a fun project. I've been considering a DUI for my wagon but I keep hearing about the gear issues. You may have sealed that deal for me [emoji26] I really like the DUI dizzies
Click to expand...

Bulltear makes good matching cam & dizzy gears for AMC V-8's.
May be able to swap old gear of stock dizzy.

I enjoy your builds & pictures of AU.
I would like to one day have a CJ-10
 
I lost a 6al from heat on a road trip Lucky i still had the stock unit still on the engine. I would Mount it in a cool place and use rubber feet as the vibrations also kills them.. the 6aln fixes that problem now.

Sent from my SM-N910P
 
Gazzo beat me to the punch line. Most just switch out the gear. If the gear it too chewed up to use it's time to switch out both anyways.
 
Go HEI and be done with all your ignition problems. Pretty much one wire and you're done.
 
red mistress said:
Do you see many problems with the MSD 6AL ?
Click to expand...

I believe the lifespan of the MSD unit is directly related to how and where it's grounded. It either has to be grounded to the engine or to the battery. If it's grounded to the body, the resistance goes up and eventually kills it. Unfortunately the heavy ground lead on the MSD is pretty short so you would have to extend the wiring most times.
 
This AMC 360 motor makes good oil pressure hot and cold ....and I know it would be hard to stop myself with just a HEI dizzy swap.
Been hard enough not to break out the compound & polishing to the paint. Jeep has no rust :) :bow:
Motor has plenty of power and would white smoke the old tires easy. :smokin:


Was mostly just wanting to get rid of old ignition and move MSP inside away from muddy water.
Set the rev limiter to 5800.
Buddy of mine thinks he's got ignition & tach wiring figured out, which will use heavy red with white tracer so the tach plugs in like stock.

The battery is just on other side of firewall and the heavy ground on MSD is just long enough to reach.


Painless add on fuse block will fit on left or right side of factory fuse block.
Would be easier to mount & access on right... but the brake pedal is only 1/4" away.
Plus would be hard to keep wires out of that movement area.
Just not enough room beside pedal & column mount for wires to exit to top.

This Scrambler was manual, I swapped in auto brake pedal and repurposed the A/C firewall plate to cover the hole for clutch rod.
Need to find an A/C boot for lines to pass thru.
Anyone install A/C, what did you use for high & low pressure lines thru firewall?

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Left side is better and there is a factory knockout thru firewall for additional wires right above.
Gotta take out the emergency brake to install... easy enough.

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Now...Going to concentrate on getting rear winch mounted & new heater core.
 
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