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I finally got the thing off! It appears to be a normal part so I definitely missed something. Anyway, the engine runs a little warmer when idling but not appreciably. I drove about 30 km on the highway at 80kph and the temp was normal; though once I turned off-road and stopped it warmed up a bit (obviously the latent heat from the highway); but it soon cooled down once I was moving on the steppe's dirt track.
Anyway, there are still many issues with this old, neglected machine but it gets me to work and back and gives some fun on the weekend. There are a tonne of electrical problems, the inside interior is a mess - like and old farm truck - I doubt the clutch and brake fluids have been changed in 20 years. I still need work on my manual glow relays - I wonder if enough power is going to them - how many amps should the second glow relay draw?
There is some voltage leaks too and I often disconnect the battery overnight. The dashboard had a major short circuit one time and was smoking - no flames though; an electrician rewired it but in such a way that the battery is always on. Not sure if that is worth addressing given how much of a mess the wiring is in. I don't want to spend a lot of money fixing this old thing though labour costs for mechanics here in Semey, Kazakhstan are peanuts - not sure how much they charge per hour of work but I bet it is less than 10 dollars an hour. Wine-maker - do you know the hourly rate or do they even charge by the hour? The labour to pull out the old engine and put in the new one was only 300 dollars. The mechanics here - Russian speakers - used google translate to tell me my machine is "an old bucket of bolts."
I should take it in and get all the fluids replaced. At the least the new engine I put in it runs really well. It starts a little rough when cold (hence I wonder if enough power is going to the busbar) but after 5 minutes it is smooth and after it warms up for 1/2 hour or so it has a good kick. It would be nice to ride in a well-maintained machine just to get a good comparison. Anyway, this machine was the only 4x4 near the budget I had set and it was still higher than what I had originally wanted to spend.
The question now is how cold will it get before it will be too cold to run given that I don't have a place to store it inside and there is no power outlet where I park for a block heater and an intermittent auto-start is out of the question given that all the starting relays must be tripped using manual switches I have wired up into the dash.
The oil in there now is 10w-30; perhaps as it gets colder I should replace that with a lighter oil? I would like to drive all winter but I suspect when it gets below -40 c - and it certainly will get much lower than that - I will be taking a taxi to work and back and have no fun driving on the weekends.
Thanks for the help guys! Once of these days I will make a good video documentary of this old machine which, to be honest, I rescued from the scrap heap!