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1968 unimog 404
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Discussion Starter · #1 ·
So I started to install my temp guage conversion kit today and noticed what looks like a resistor or diode in the kit. Is the gauge in the kit a 12v gauge? I tried to search the site for a posible answer but could find nothing.I got the kit from EI so I assume a few folks here have installed them on their trucks.
 

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1988 U1300L RW-1
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PJ-

I just recently installed one of these kits on one of my Mogs. My Mogs are both 24V, and the kit I got is certainly for a 24V setup. In the kit there was the gauge, a new sender to screw into the block, and some wire and connectors. No resistors/diodes. Give Scott a ring, I'm sure you can get it sorted out quickly. I'm assuming the VDO gauge that I got is 24V, it works perfectly in my 24V system. If you got a 12V gauge for some reason, you would obviously need a resistor to drop the voltage. Perhaps some of the kits come with 24V gauges, other with 12V gauges? Is there a voltage indicated on the back of the gauge you got? How about a part number...you might be able to use the part number to see which gauge you have. Or maybe, you just got a free part!
 

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1968 unimog 404
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38 Posts
Discussion Starter · #3 ·
Thanks for the info. I'm thinking that perhaps it's to drop the voltage to use a more common 12v light in the gauge. Is this line of thinking out in left field or what?
 

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1988 U1300L RW-1
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Possible...but for what its worth, the bulb that came with mine was a 24V bulb. My guess is that for 24V stuff the idea is to keep it 24V, otherwise things get confusing. I also thought I would add, along with the temp gauge conversion kit I ordered the transmission temp gauge kit. Same exact gauges in both, same bulbs, just different senders. No resistors in either kit. Did your kit come with instructions? Mine didn't. Just wondering if there might be a hint in there, but I imagine if you got instructions you've checked them out thoroughly. Don't you hate it when this stuff happens on a weekend?
 

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1968 unimog 404
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38 Posts
Discussion Starter · #5 ·
No instructions with mine. I would have called scott first thing but as you said its the weekend.This is just one of those little things that pop up, and after changing the transmission in this beast, everything else is just a minor inconvenience.
 

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1988 U1300L RW-1
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No kidding, I know what you mean! How did the transmission replacement go? Mind if I ask what kind of transmission failure you had? Just curious... Also, how did you go about the transmission replacement? Cab off, motor out? Or did you remove the cab and box on the back?
 

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1968 unimog 404
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Discussion Starter · #7 ·
Transmission swap went well, lots of fun! Thats what I keep telling myself.its a long story but I'll condense it for you. Got the truck for a song, It had a bad throwout bearing, real bad, like 600 pieces bad. I got it home pulled the cab and engine, changed the TB, bought the temp gauge kit and a few other small things. Got the truck together and had no 5th gear . I have noticed alot of 5th gear failures, but thats another topic for discussion. So I found a reman transmission and the rest is for my therapist to figure out. I did learn alot though. I found out these trucks are more like working on heavy equipment than a car or pickup truck. I know these trucks are part tractor, but you dont realize it untill you start wrenching on one.This is way off topic but I just picked up a 63 rambler that has the same rear end setup as an old unimog, What is this setup? three link?......perhaps I'll stuff some 36" tires under the rambler and go head to head with the mog!
 

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BenzWorld UNIMOG statesman
Unimog 404.1 Diesel (sold :( )1995 LMTV 1078, 1995 M1079, 1079box for sale !!!
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....This is way off topic but I just picked up a 63 rambler that has the same rear end setup as an old unimog, What is this setup? three link?......perhaps I'll stuff some 36" tires under the rambler and go head to head with the mog!
The rambler had Torque Tube suspension?

About the only thing wiht Torque tube even back then was super high dollar sport cars (if even that) and some special duty trucks like Unimogs.

At some point Dirt track racers started using Torque tube suspension too. Not sure when they evolved to that.

oh.... and yes.. a torque tube suspension does seem to me to have many of the benefits and engineering of 3 link suspension
 

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1968 unimog 404
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38 Posts
Discussion Starter · #9 ·
Yep, a torque tube, with the links atached to it. Not a 4 link with the extra link from the rearend to the transmission crossmember.The folks at amc must have spent some time in germany, perhaps one was run over by a mog and got the idea to use this odd setup.
 

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Unimogs
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The tech line is open! Actually working all weekend at the shop much to the families dislike. Anyways, on the temp gauges. There should have been instructions with the units, and if not it's my bad.

For referrence, VDO has discontinued the 24V specific Cockpit series of gauges. What they have superceeded it to is the 12V gauge with the resistor. As we cycle through some of our inventory we had both versions shipping for a couple of months depending upon which gauge. ALL of the gauges will be supplied with 24V bulbs (We install these ourselves), but the resistor will need to be used on the input voltage into the 12V gauges. The "24V" gauges from VDO are know a 12V gauge with the resistor.

Cheers,

Scott Ingham
Expedition Imports
 
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