Anonymous comments allowed.
User avatar #8 - robbiemcbiscuit (03/24/2013) [-]
if anyone cares the reason theres a fire going underneath that Ural-4320 is to heat up the engine block and melt frozen coolant before operation =]
User avatar #18 to #8 - fantomen (03/25/2013) [-]
That's stupid. If the coolant was frozen the engine would be ruined.

The reason you heat diesel engines in the winter is to heat the oil and make it more liquid, and diesel ignites much easier warm, so it's easier to get it started.

At least that's what my brother says, and he's an educated heavy vehicle mechanic with 5 years of experience.
User avatar #24 to #18 - tkfourtwoone (03/25/2013) [-]
With all due honesty and respect to your brother's savvy, Russians really do things.... differently.

Think about it: the T-34 and other tanks were designed so their engines would still fire up at -30 degrees Celcius. If I'm not mistaking, a Lada (one of their national cars) today can do the same.

User avatar #26 to #24 - fantomen (03/25/2013) [-]
Ever heard of anti-freeze?
It keeps the coolant liquid at temperatures far below freezing.
Yes, most rugged vehicles can operate at arctic temperatures, but only if they have anti-freeze in the coolant, so that the coolant doesn't freeze.

If the coolant had frozen like robbiemcbiscuit said the engine block could have cracked (destroying the engine), and the radiator, and the water pump would have been ruined.

At the very least it would push out the freeze plugs, causing the coolant to leak out when it thawed, which would mean that once the engine started getting hot the block would warp, or the pistons would seize, also destroying the engine.
User avatar #30 to #26 - robbiemcbiscuit (03/25/2013) [-]
nah man, see the coolant is 70-30 water-antifreeze yeah? in the water there is parts that are unaffected by the antifreeze, like minuscule particles, and THEY can freeze. also yeah it can be to warm up the temp to normal O.T but on a diesel it can warm the fuel up, which helps in starting. i was trying to simplify it for some not-mechanically-minded folks.
als0 im an LVT, did three yeas at college, so me and your bro are about the same qualified.
User avatar #34 to #30 - fantomen (03/25/2013) [-]
I know that.
It's just that in your original post it looked like you said that all the coolant in the engine was frozen solid, and they needed to liquefy it again to start it.

But this would cause serious damage to the engine. That's all I wanted to say.
User avatar #9 to #8 - Lambda (03/24/2013) [-]
I actually hadn't questioned it. You know, it is russia.
User avatar #10 to #9 - robbiemcbiscuit (03/24/2013) [-]
"in soviet russia - Radio listen to you!"
 Friends (0)