Just wondering what the top speed of a m51 dump truck with 11.00's. my friend has one and he said that it will only run i think 36mph... i havent got a chance to look at it close but i was just wondering if this was normal. any ideas? cuss/discuss
Pull the air intake tube off the turbo and see if it is stuck. Seen that before. If so, pull the top oil feed line and spray in some wd-40 or whatever and put a socket on the nut on the shaft, and gently break it free.
i'm not sure on the smoke. not even sure on what rpms he is turning. i was just wondering if it was normal for them to be that slow. he said on the dash it said max speed was 36. but i dont know... i will try that if its not the case.
Multifuel 5 tons came with a direct drive 5th gear. 50 will be max at 2600 rpm. But last time I posted that info some fng with a deuce told me that I should do 60 and I had a fuel problem.
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My son just bought a 1962 M51. It has the Continental R6602 gasser in it. The manual says it will do 57 max (going by memory, don't have it in front of me). 36 sounds like about the top speed in 5th gear LOW range. Is he sure he was in HIGH range?
I think the multifuel and diesel were listed at a couple of mph slower. Whatever engine he has, according to the manual he should be in the mid 50's in 5th gear HIGH range.
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my old gasser m52, would do right at 55 when on the pag
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Ron
Gainesville, Ga. vietnam-1/66-8/68
"Technical Manuals are the path to Illumination...
Download, Study Learn"---rlwm211
42 5t? autocar tractor, gone
43m20, 12t, converted to tractor, gone
52m52, tractor, gone
73m819, tractor/wrecker AKA Wrecked Wrecker
77xm977 10t 8x8, to be a xm 983 sold
What ever else that can be drug home Use CUCVs, a small step below BOBBERS as wheel chocks
GOD help the MV world if i win the LOTTERY
LONG LIVE BIG GREEN IRON
__________________
Ron
Gainesville, Ga. vietnam-1/66-8/68
"Technical Manuals are the path to Illumination...
Download, Study Learn"---rlwm211
42 5t? autocar tractor, gone
43m20, 12t, converted to tractor, gone
52m52, tractor, gone
73m819, tractor/wrecker AKA Wrecked Wrecker
77xm977 10t 8x8, to be a xm 983 sold
What ever else that can be drug home Use CUCVs, a small step below BOBBERS as wheel chocks
GOD help the MV world if i win the LOTTERY
LONG LIVE BIG GREEN IRON
The differences in speed are due to the different characteristics of the Gas and Diesel engines.
From the Operator's TM
Max 2,800 rpm for gasoline; 2,600 rpm for multifuel; and 2,100 for diesel,
This would explain the MPH difference between the Gas version and the Diesel
Although hard to believe, 200 RPM in 5th can equal this much in terms of MPH.
I do not believe that either version will do 36 in Low Range.
RL
I believe you are correct about attaining 36mph in low range. I was just looking at the manual the other night. The chart in it shows the top speeds in each gear in each range. As I recall high range speeds were about double what low range speeds were and 26 or 28mph seems like what it showed for low range 5th gear.
Multifuel 5 tons came with a direct drive 5th gear. 50 will be max at 2600 rpm. But last time I posted that info some fng with a deuce told me that I should do 60 and I had a fuel problem.
To echo what VTDEUCEDRIVER said, I had an M543A2 with the direct drive transmission (no overdrive) and I was only able to go about 46 mph without really stressing the truck. The direct drive transmission leads to slower road speeds, but I like it better than the overdrive transmission as I think you have much better power through all gears.
top speed m51 dump truck
