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Compression on diesel motors is measured via injector holes (equvalent of spark plug holes on gas engines). Ask your closest Zetor dealer, or any guy who has repair shop for injection pumps, for "blind injector" and pressure measuring device. Normal pressure has to be between 22-30bar (320-440psi).

You need to dismount injector holders on all heads, install "blind injector" (need to have similar shape to original injector holder), connected to pressure measuring device (usually with paper tape here, to print max pressure on each cylinder), and crank engine with starter.
This procedure need to be carried out for every cylinder.

I had similar overheating experience on my ex car (Yugo, gasoline engine). After overheating, it blowed oil out through the oil pan breather. We just replace piston rings, an everything was ok since then.

Hope this helps.
ZJ

<blockquote data-quote="zjakopovic" data-source="post: 3789" data-attributes="member: 1903">Compression on diesel motors is measured via injector holes (equvalent of spark plug holes on gas engines). Ask your closest Zetor dealer, or any guy who has repair shop for injection pumps, for &quot;blind injector&quot; and pressure measuring device. Normal pressure has to be between 22-30bar (320-440psi).You need to dismount injector holders on all heads, install &quot;blind injector&quot; (need to have similar shape to original injector holder), connected to pressure measuring device (usually with paper tape here, to print max pressure on each cylinder), and crank engine with starter.This procedure need to be carried out for every cylinder.I had similar overheating experience on my ex car (Yugo, gasoline engine). After overheating, it blowed oil out through the oil pan breather. We just replace piston rings, an everything was ok since then.Hope this helps.ZJ</blockquote>

[QUOTE="zjakopovic, post: 3789, member: 1903"] Compression on diesel motors is measured via injector holes (equvalent of spark plug holes on gas engines). Ask your closest Zetor dealer, or any guy who has repair shop for injection pumps, for "blind injector" and pressure measuring device. Normal pressure has to be between 22-30bar (320-440psi). You need to dismount injector holders on all heads, install "blind injector" (need to have similar shape to original injector holder), connected to pressure measuring device (usually with paper tape here, to print max pressure on each cylinder), and crank engine with starter. This procedure need to be carried out for every cylinder. I had similar overheating experience on my ex car (Yugo, gasoline engine). After overheating, it blowed oil out through the oil pan breather. We just replace piston rings, an everything was ok since then. Hope this helps. ZJ [/QUOTE]

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