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I never knew that was the reason for that ridiculous name...

I wouldnt tinker too much with the steering housing, they all go bad and sour. 20 years ago the price for a rebuilt steering housing was 600 Euro, an orbitrol conversion kit costs less than that today. Orbitrol conversion is pretty simple on an 8011, there are kits for this purpose. The...

See that, this 18345 rear axle has SUBSTANTIALLY bigger planetaries and crown gear. Thats good because even at 140hp the UR2 axle would break the pinion shaft out of the housing. Its still a big mistake that HTC didnt buy the remains of ZTS to make these 144/16445 under Zetor name alongside the...

Why would they be air cooled ? Only Slavia milled down the crankcase of a Zetor block to bolt air cooled cylinders to it, Zetor never built air cooled engines themself.

At the time these were built (before 2002) a 32/32 or even 32/16 transmission with 4 powershifts would still hold up against the competition.... They had the same problem Zetor has 20 years later, their sales channels collapsed so they couldnt build them for a competitive price anymore.

Last year i converted my mates Ursus C-385A (same as Zetor 8045) to orbitrol steering with a kit from Hydrauliktop Slovakia The steering box going sour is a known issue with the Crystal. This tractor was bought brand new in 1982 and has served the farm up till 1993 as prime tractor, and then...

No, it would add nothing, the 3 step powershift is a good entry level gearbox, and a 4tH powershift step could only be sold for the same price, its a bad investment. What Zetor needs is a 6 or 7 step powershift with 4 speed ranges, that would be a mid-level gearbox option that would make it...

Were they 4 speed powershift, or were they 2 speed powershift plus two mechanical splitter gears, so you could also powershift from 2H to 3L ? They are a rare beast but i dont think they ever had a 4 speed powershift...

Cab number doesnt mean a thing. 12145 was the same weight as 16145 so the cab is ROPS approved for both.

I really cant find back anything about the 8.5 liter marine engine. I found it 15 years ago on the internet, it was a small engine builder, which is most probably defunct now. It wasnt Slavia, who put aircooled heads on Zetor blocks.

I dont know if the UR4 engines had a higher deck height, lower pistons or shorter rods, but if you only change the crankshaft the piston hits the head. The 8.5 liter industrial engine maxed out at 1500rpm, used Crystal heads, but had 150mm stroke...

The valve sometimes gets stuck in its bore when hot oilis pumped through it for extended periods. We used to unstick them by taking the pressure off, i.e. putting the lever down and then wheelieing, the short cut in pressure on the piston will cause the valve to pop loose so your tractors nose...

Have you loaded the rear axle heavy ? The halfshafts sometines snap. Will it move under its own power in 4wd ?

Oil -level- is ok too ?

You dont shift 1000rpm with the lever under the seat, it gets you from independent to groundspeed. You shift 1000 by taking off the 7 splined stub and sticking it into the side of the gearbox where the 21 splined stub is stored.

8011 brakes are just like any other mechanical thing: if you want to be tight and squeeze every penny of life out of it, youre in the shop often. If they start to fail, replace the balls each and every time. They wear flat edges and hang. Brake plates with 50% wear on them, throw away and put...

You cant read a manual transmission whilst running, splash oil will be high on the stick. It needs 10w/30 or 15w/40 UTTO (universal tractor transaxle oil) I am not sure if 80w/90 is also allowed in this trandmission with wet PTO and TA clutches

I think Gason cab was standard in Australia. Duncan in the UK. Hara on older models in scandinavia. Zetor itself used cabs from two factories on the smaller models but the crystal only one at a time. The 2 series had a different cab. Dont know about australia though.

Its possible but nmaybe not worth it. It involves changeing the layshaft gears (one gear might be hobbed on the layshaft itself so that involves a full shaft) and then putting a new set of 4th speed gears in it. You better find a used 40k box, less work.

A. Its very heavy and B. The gasket sticks. I dont know if it has any dowels.