Zil-135 questions
Posted by BreadstickBear@reddit | WeirdWheels | View on Reddit | 33 comments
Hey everyone, I'm not sure this is the right place, but I'm looking for info on the Zil-135 and its engines.
The Zil-135 is a heavy military truck from Russia, which entered production in 1959, and has a very strange twin-engine/twin drivetrain setup, where one Zil-375Ya engine drives one side of the vehicle and the other drives the other side, withiut any sort of mechanical connection between the two sides.
Does anyone have any info regarding the size of the engine bay and the dimensions of the engines and the engine+transmission units?
Note: if this post is rulebreaking, please point me in the right direction where I can ask my qn's before deleting.
Cheers!
mike10kV@reddit
ZiL-135 : 2x ZiL-123F engine + 2x hydro-mechanical automatic gearbox (each engine & gearbox drive some side wheels). ZiL (Zavod imeni Lichachova) factory in Moscow.
ZiL-135L/LM/LMP : 2x ZiL-375Y engine + 2x mechanical non-automatic gearbox (troubles with non-synchronical engine work). BAZ (Bryansk's Automobile Zavod) factory in Bryansk.
Wiki (ru)
Yo-Yo-Ha@reddit
Ok ultimate off road rv time!
Lukilu050@reddit
I just went down the rabbit hole, and wtf the earlier models had no suspension? What were the russian engineers doing man
SellMeSomeSleep@reddit
Treating it like a tractor or a crane truck perhaps where big wheels and no suspension are typical. Limited driving speeds I would think though.
DMala@reddit
Soviet asses do not need cushy American suspension. Driving across tundra build calluses, make strong for motherland!
tesznyeboy@reddit
I mean it doesn't really need suspension. It's kinda like an old bulldozer but on wheels.
I think the front and rear axles have independent suspension anyway, which provide rudinentary road comfort along with the (probably) soft tires, but with such a long wheelbase and strange wheel arrangement, it would need extremely long travel suspension to keep all wheels done anyway. I guess they just desinged it for traction over soft terrain, not rock climbing.
JCDU@reddit
These guys might know, hell someone might own one and have a tape measure:
https://www.russianmilitarytrucks.com/forum/index.php
BreadstickBear@reddit (OP)
I checked the forums, but it didn't let me register and returned general errors if I clicked too quick
BreadstickBear@reddit (OP)
I'll check them out, thank you!
Lionus_Fin_1983@reddit
Negative MPG unless you're crossing border towards West.
sultan_of_gin@reddit
I wonder if you can make it go straight if one engine dies
Mindless-Western-624@reddit
wait so it has multiple engines or what
perldawg@reddit
i’m sure it can. probably the reason it was designed how it is; redundancy
LevoiHook@reddit
If that was the only reason, would the not have split it front / back and give it an extra gearbox that can switch either engine to all wheels?
Kojetono@reddit
Complexity.
This way it doesn't need differentials, and the switchable gearbox would have increased the complexity, as well as adding a single point of failure.
LevoiHook@reddit
Only if the rear wheels steer at the same angle as the front ones i would think. There is a reason you dont drive in 4 high on tarmac in an older 4wd.
BreadstickBear@reddit (OP)
I'm not sure. One of the few pictures I found is about the drive train layout, and it clearly shows complete separatiin between the two sides, not even a switchable transfer case.
perldawg@reddit
right, completely redundant systems, failure at any level on one side can’t render the other side inoperable
BreadstickBear@reddit (OP)
I mean sure, but then you're gonna be struggling because you have locomotion on one side but not the other.
Mobryan71@reddit
It'll work well enough on-road and in light offroad situations, regular open differentials only deliver power to one wheel anyhow.
Extreme offroad is obviously a problem.
perldawg@reddit
…but you will be able to keep moving
BreadstickBear@reddit (OP)
...whatever you say
sultan_of_gin@reddit
Or they didn’t want to design a new engine with sufficient power output and used an existing design? No idea really just guessing
thehom3er@reddit
think about how you can push a bicycle without any problems. It's only an issue if you have no grip.
Muted_Reflection_449@reddit
But pushing those unpropelled wheels with the width and load of the truck on them...
Mobryan71@reddit
A regular open differential only applies torque to one tire at a time anyhow.
Skvirtyn@reddit
Двигатели там крутые, каждый на своей стороне работает через систему двигатель раздаточная коробка передач и редуктор в каждом колесе
BadWolfRU@reddit
Pictured: Diagram of the drivetrain of the twin-engine ZIL-135E vehicle: 1 — engine, 2 — torque converter, 3 — automatic transmission, 4 — reduction gearbox, 5 — transfer box, 6 — drive shaft, 7 — bevel final drive, 8 — wheel hub reduction gear, 9 — wheel, 10 — constant-velocity joint
BreadstickBear@reddit (OP)
Thank you very much, that's the diagram and site I found earlier. I couldn't find the info I was looking for though.
Меня действительно интересуют размеры двигателя (длина × ширина × высота), агрегата «двигатель + коробка передач» (д × ш × в) и моторного отсека, но я нигде не могу найти эти данные. (машинный перевод)
BlackSeaRC@reddit
Check out the book "WWP Frog-7" which has lots of images that might assist.
wsxced@reddit
https://djvu.online/file/fzWgjPq2IboLy?ysclid=mpdym3y0br839690903
BreadstickBear@reddit (OP)
Thanks, that's a start at least!
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