Feedback Re: M35A2 W 5 ton Multi-fuel installed

[Yohan]

Hi all,

I have an opportunity to buy an M35A2 with a 5 ton multifuel engine in it that was installed by the military. Would anyone be willing to share experiences, likes, dislikes, pros, and cons about a set-up like this. I have no experience with a Deuce in any fashion, so I'm humbly asking for input. Thanks!

John

 

[AZDeuce]

Yohan:

I've "heard" that the military derated the 5-ton engine when installing it in a Deuce, but I do NOT know this as a fact. I do have a friend who put a 5-ton engine in his deuce, and he can out run me through the gears, as well as on the long haul by a few MPH. I think you would be happy with this set up, if the truck and engine are in good shape, I wouldn't hesitate.

 

[M1075]

I have one and really like it. They should all be setup like this!

 

[stumps]

I suspect that the 5 ton would have a bigger radiator than the deuce, so that is probably the source of the de-rating on the LDS engine. But for short term bursts of power, it should be very useful.... over the long term, you might need to keep an eye on the water temperature.

-Chuck

 

[gimpyrobb]

Nah, don't worry about the radiator. I put together a dropside deuce with an LDS(5ton) motor. I have run it all summer long and it is wonderfull. I suggest that anyone who thinks about it does it. I have had 72 hemmit rims in the truck and it handled it just fine.

 

[Yohan]

Thank you for the replies, gentleman. Do any of you know if the military installed a larger radiator in the M35 when installing the 5 ton multifuel engine? Gimpryobb, if you've made the mod yourself and had no problems w/ overheating, I'm not overly worried about it. I'm told (and I trust the seller on this) that the install was military and not a civilian swap. Thanks again, all!

John

 

[gimpyrobb]

NAh, no troubles. The swap has been done by the military too. I have mine at the point that I can get to 1200 on the pyro, but preferr to run cooler. I have found differents fuels effect the egt, but a close eye on the gauge keeps it all in check. If you have the chance, I would say you are CRAZY not to do it.

 

[Yohan]

Would running centrifuged WMO and/or WVO cause it to run hotter or cooler? What kinds of fuels are you running? I'm still trying to figure out flipping hubs and tracking and supersingles and hemmit rims and deuce bolt pattern centers and now I have to spend more hours searching "pyro" posts... The Mrs. loves it when I spend time "researching" on SS!

And what's the difference between regular Hemmit rims VS "72" Hemmit rims- or isn't there a difference?

 

[Blood_of_Tyrants]

You should have no problem with WMO or WVO as far as running or cooling. The only problem you might run into if you run into is jelling of the WVO on cold days.

 

[gimpyrobb]

Well, the different fuels have different btu ratings and rate of burn, etc, etc. My truck likes diesel the best for power and mpg. It runs fine on wmo and other oils. Flopping the hubs is not complicated, its just hard to press out the wheel studs if you don't have a hydraulic press. I am not sure of the different styles of rims for the hemtt, but they WILL need machine work to get them to fit a deuce. I have a thread with part numbers for Hewitt pyro stuff, I'll see if I can get a link.

http://www.steelsoldiers.com/deuce-modification-hot-rodding/19089-pyrometers.html

 

[stumps]

The military has a different way of thinking about things then we likely do. They expect a truck to run fully loaded at full speed in a desert at 120F... So naturally, they are going to derate an LDS engine when it is used with a deuce radiator.
I doubt that any one of us would want to drive a deuce when it is that hot outside! At any civilized temperature, the LDS with its extra heating load would probably be a treat in a deuce... I wouldn't hesitate to use one that way.

-Chuck

 

[ALFA2]

It's great that the military already has done the work for you, if it runs well, and you like the truck overall, this is an improvement in any case, better internal oiling of pistons, usually a better cam, more power, and it is already in there and runs.

have fun.

ALFA2

 

[hogtruck]

Those "72s" are just a bit heavier than the 71s.

 

[gimpyrobb]

no oil cooler.

What makes you say that? I thought all multifuels had an oil cooler built in.

 

[oilcan]

And what's the difference between regular Hemmit rims VS "72" Hemmit rims- or isn't there a difference?

I think what gimp was saying was that he had 72 wheels that fit a hemmt in tha back of his truck at one time. A pallet of 12 of these wheels weighs a little over a ton, I think.

 

[Yohan]

Thanks... yeah, I'm a total new-guy.

I think what gimp was saying was that he had 72 wheels that fit a hemmt in tha back of his truck at one time. A pallet of 12 of these wheels weighs a little over a ton, I think.

 

[gimpyrobb]

HAHA! Good catch there Adam. Yeah, 72 was the quantity of rims I recovered. They are about 150lbs each. Can't believe I missed that!

 

[stumps]

What makes you say that? I thought all multifuels had an oil cooler built in.

The oil pan. If the deuce has an external oil cooler, I sure have missed it.

They all have a water heated air intake manifold.

-Chuck

 

[gimpyrobb]

The oil cooler is just behind the oil filters. It exchanges the heat to the coolant.

 

[doghead]

Stumps, take a few minutes and download all the TMs listed for the Deuce. A few times through the -20P, will familiarize you with all the components,that makes a deuce!

From the WIKI, Technical Manuals

LO 9-2320-209-12-1 Lube order for the m35 series
LO 9-2320-386-12 M35 Lubrication Order

TB 9-4910-492-30Hoist unit mount in m34 or m35
TB 43-0209 Military camouflage painting
TM 9-2320-209-10-1 M35reference data.
TM 9-2320-209-10-1-HR List issue items m44a1 and m44a2
TM 9-2320-209-10-2 M35 preventive maintenance checks and services
Tm 9-2320-209-10-3 M35 general troubleshooting
TM 9-2320-209-10-4 M35 operator's maintenance program
TM 9-2320-209-20-2-1 M35 trouble shooting volume 2 section 1
Tm 9-2320-209-20-2-2 M35 trouble shooting volume 2 section 2
TM 9-2320-209-20-3-1 Organizational level maintenance, volume 1 section 1 (chapters 1 - 12)
Tm 9-2320-209-20-3-2 Organizational level maintenance, volume 1 section 2(chapters 13 - 17)
Tm 9-2320-209-20-3-3 Organizational level maintenance, volume 1 section 3 (chapter 18
Tm 9-2320-209-20-3-4 Organizational level maintenance, volume 1 section 4 (chapters 19 - 23)
Tm 9-2320-209-20p Organizational level maintenance parts / tools
TM 9-2520-246-34 M35 direct / general support maintenance for transmissions
TM 9-2520-246-34-1 Maintenance direct and general support transmissions
Tm 9-2520-246-34p M-35 direct / general support maintenance parts, tools for transmissions
Tm 9-2815-204-34pM-35 Depot / Direct / General Support Maintenance Parts Tools of Engine