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Anyone have the turbo maps for the 5 ton turbo off a multifuel? Would it work on a 2½ ton multi? Just got one cheap, and was wondering if you could change them out, boost the fuel and get more power. Second thought was to use it on a 5 ton gasser in a blow through setup. Just want a low...

8.3 re-powers I always thought that these motors would make a good re-power for older 5 tons. Lighter than the 250's and more power than the multi-fuel. Anyone have any dimensions and weights for these? Are they the same length± as the multi's? If the same or less, may be able to use in 2½...

Carbs The Zenith carb now on our truck does not have the "degasser" valve like the Holley had. Truck will run-on some when hot, but not bad. Also have to check governor setting as the engine barely will rev to 2500 with no load, and manual says that we should see 3100± with no load. Hate to...

Bridge truck axles TOWMAN, are you able to drive your truck legally on the road at it's normal width? We had to flip the rear hubs and run singles to meet our State's width requirements. Truck was originally 9.5' wide and State only allows 8.5' without special permits. Also, are you sure...

M139 Road Speed Yes, our truck still has the original 1400x20 NDCC tires, Denman on the front and Silvertown BFG on the back which are dated 1961! Rear hubs were flipped and the spacers installed on the outside with the rear tire/wheels reinstalled as singles. Load rating on the tires is less...

Update on noise? Any update on the noise? I bet that the broken clutch/bearing parts were the source. Our R6602 is not really very noisy in the valve train at idle or slightly above. At 1500 to 2500 the rest of the noise cancels out the valves and all you can hear is the bellowing of the big...

ID Lockers Our H2O truck is based on an M139 bridge truck built in 1961. Also have a 2nd truck waiting to come home that is almost a twin serial number wise. How do we tell if the diffs are lockers? Never really got it to spin the wheels much (gas motor), even in soft dry sugar sand with ½ a...

Pictures Sorry for not having any pictures right now, but I tend to be "challanged" when it comes to this stuff. The truck is currently back (installed new clutch in 12 hours,2 men, last Saturday) at a job site being used, and I will try to get some pictures today under sunny conditions with...

Bridge Trucks In our state, you can't get normal plates for the bridge trucks as they are over width, and need a special permit (more money) and time restrictions for operations (no nights and weekends). This is why we had to remove the duals from the back of our M139 water truck and run...

Tanker This is the same type/size/kind of tank installed on our M139, which was cut about 4 feet shorter (16' +or- now). All aluminum with multi baffles inside, but all one tank, not divided. If the originals are 20 feet long, and held 5,000 gallons, it makes ours about 4,000 gallons and very...

We have finally got the converted M139 (bridge truck) water truck to a jobsite for use. Everything works great but there is a small noise from the clutch release bearing when depressed. Have tried to download manuals from the tech section on two different computers and can't seem to get...

Axles On our truck (1961 IHI M139), the axles on the rear have 1¼"± spacers with extra long wheel studs. On the front, there are 3-4" spacers with very long studs. These spacers were so the 1400x20 wheels and tires cleared the springs and the tierod ends. We took the rear hubs off, turned...

Anyone know of any type of hi-po upgrades for the 602 gasser motor? Have already added the Zenith carb, new dist., new plugs, set valve lash, set timing and changed the oil. May try and adjust (raise) gov. settings to 3000-3200 max loaded speed. Any ideas? There was an old post about turbo...

What do you deuce guys use for lug nuts on the rear when upgrading to super single tires/wheels? We have flipped the hubs on our 5 ton and re-installed the 1400x20 tires with 10x20 bridge truck wheels on the rear axles. Using the "stud nuts" that held the inner duals on, we just bolted-up the...

Anyone know the Bendix/Midland numbers for a 6602 air compressor? The head is starting to leak on mine and I would like to get the parts or new unit before removing it from the truck. Mine uses the water cooled unit, but I wouldn't care if the replacement was air cooled. Our local auto/truck...