I'm in the process of converting my 404 troop transport from 24 to 12 Volts, need help with the following:
1- Starter: Is it possible to convert the current starter to 12 Volts? If not what replacement starter can I use?
2- Planning to use GM alternator, any thoughts or recomendations?
Shoudn't be a problem...It may be tough to find that BOSCH starter in 12v. but your local starter shop should be able to rewind the armature on the 24v unit from your truck. Same with the alternator...most shops can rewind an alternator as well. I personally like the 24volt set-up better. What is your intent on making the switch? If you're looking to ad additional 12v equipment, I might suggest keeping the 24v set-up and ad the 12v for misc. An isolator can also be used with your current set-up for operating 12v low current draw equip. This side of running multiple stereo amps your best bet is to keep your exsisting 24v. More is better in my book.
I'm not sure which starter we have but it is definitely a saloon car one and does work fine, the alternator is entirely random.
If I can see a part number on the starter, I'll post it here (be friday at earliest).
For an alternator, just make sure it turns the right way and is rated enough (>90 amps?).
My only wonder (that I've never heard addressed here) is whether the wires are all thick enough. For any given load 12 V will take twice as many amps as 24V. I imagine the starter will be fine, since the original one is huge (about 5 horsepower?), but wonder about the lights and any other high loads.
All this started when I got the bright idea of converting the truck into a Doka. One thing led to another and now I'm pretty much doing a frame off. I'll re-wiring the whole truck so I figured might as well convert it to 12 Volts.
Tasks at hand:
Finish off the fabrication of Doka cab (should be done this weekend).
Sand Blast and LineX the interior and underside of Cab
Install new gagues and switches
Replace Oil Bath style air filter with a Snorkel topped with K&N filter
Make front clip of truck removable for easy access to engine compartment
Fabricate new battery box to mount under cab yet above frame rail
Replace fuel tank with a fuel cell to be located between frame rail
Fabricate Roll cage
Install hydraulic assist steering
Install 12,000 lbs winch at rear of truck
Things I'm considering:
Depending upon how much space I have left after setting up the Hydro assit, consider installing a York compressor for onboard air.
Install bigger tires such as Michelin XL or Continental MPT-80. 12.5R20
Any thoughts and suggestions are greatly appreciated. And by the way, I do agree with you that a 24 Volts system is superior, however the conveniance factor of a 12 volt system cannot be ignored. My concern is when I need a jump while stuck somewhere in the back country
It's an old and very dull unit, great for nice clean DC for a radio but bulky and inefficient. Would one keep it? We have the full genny and regulator box set and have no intention of using it.
There's a certain ruggedness there, granted - but a complex rugged system is no more reliable than an unrugged simple one.
Nice big 120amp truck alternator - why have anything else (if you're changing anyway)?
>Do I have to keep the generator or can I go with a 24 Volt Alternator?
See above
>Is the ignition system on the Mog 12 or 24 Volts?
The only thing that really matters is the coil (apparently the petronix electronic ignition is fine on 12V, but don't give that opinion too much faith). My preference is for a nice decent quality generic model (we have a 12V lucas, and will get a random 24V when the time comes) rather than thinking the MB part is special.
The generator is less likely to give you any problems if you are going to SUBMURGE the truck(seeing your photo). The alternator is not designed for this type of use. Most of the stock MOG electrical system is designed for this purpose. All the stock components make for a completely sealed system. And I would guess that the stock gen. is rated at more than 100+ amps for supplying radio box applications, misc. / that's 4 batteries or more on some units.
Linear Mode
