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Unimog 404.011
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Discussion Starter #1
I finally got he result of the engine autopsy. [:(]The engine broke down because of bearings being worn by lack of lubrication. The oil pump inside the engine was damaged due to bad and old oil. The mechanic said that it has probably never been changed since it left the army 7 years ago.

The idiot who owned the mog earlier should be killed for this. [:(!]

Please everyone: CHANGE YOUR OIL every now and then.[8)]


All the best


Thomas G, Denmark
 

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Unimog_404.113_1970
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178 Posts
i ALLWAYS change all fluids and all igition parts the
first thing i do when i buy a new veichle ... [;)]

been fooled too many times by people saying they´ve
changed oil soooo many times ... [xx(]

(the oil in my mog engine was pretty black. the oil
in the gearbox looked like new .. expecting a leak
there ....[:(])
 

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Unimog_404.113_1970
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porkchop - 3/9/2005 1:39 AM

on my little vw bug the oil changes itself, i just have to add more every once in a while.[:D]
has the same feature on my daily driver, a Volvo 144 from 1970 ... it uses about 1 liter of oil for 1000 km ... [8)]
 

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Unimog_404.113_1970
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argh! [:(!]

i changed the oil in my mog for the first time today ..

it was full of gasoline .. smelled alot ...

dont know why, but there are a few faults i can think of,
like a leak from the fuel pump, or perhaps a bad
head gasket (between the block and head) ...

if anyone has any ides, please post them!
 

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Unimog_404.113_1970
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krisinak - 3/12/2005 2:51 AM

fizz, have you considered a leaking carb float valve. that would deliver gas to the crank case through open intake valves when engine is not running.
good luck,kris
thanks for the tip!

i cleaned the valves with the rest of the carbs,
perhaps that will fix it .. i will change oil
soon again, just to make sure! its almost fun
to change the oil when you dont even have to
use the jack and raise the car!
 

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1971 Turbo 406 and 1974 406
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Fizz
When I first got my mog I had the same problem. When I took it to a shop for another reason they found that the fuel pump gasket had rotted away and was dumping fuel into the oil pan. That is my best guess, seems like it may be a common or easily occuring problem on older mogs that have just sat for a long time. The owner of the shop ,a buddy of mine said I'm lucky to not be dead from driving the mog when it was like that. Be careful and good luck!

MogCrazy
 

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Unimog_404.113_1970
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thanks for the tip!

i have bought a repair kit for the fuelpump,
so i will rebuild the pump as soon as it
arrive!

MogCrazy - 3/13/2005 5:56 PM

Fizz
When I first got my mog I had the same problem. When I took it to a shop for another reason they found that the fuel pump gasket had rotted away and was dumping fuel into the oil pan. That is my best guess, seems like it may be a common or easily occuring problem on older mogs that have just sat for a long time. The owner of the shop ,a buddy of mine said I'm lucky to not be dead from driving the mog when it was like that. Be careful and good luck!

MogCrazy
 
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