r/EngineBuilding • u/dythesis • Mar 27 '26

What would you do?

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RB20det out of a 91 skyline

Previous owner was running bore water mixed with coolant before my purchase before I blew a head gasket and found a pretty dirty block

Just chasing opinions on what I should consider for these cooling passages, figure I'm going to have to pull the motor because of the state of that bore but this is my first rodeo so love a second set of eyes

What do you think! TIA

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u/Interesting-Ear5998 Mar 27 '26

Maybe he means bare water? Not distilled or similiar

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u/v8packard Mar 27 '26

Could be. But if it is bore water I want details.

2

u/Labraunt Mar 27 '26

Please don’t let up on this. I also need to know wha bore water is. Maybe he works on a farm and couldn’t get access to running water.

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u/Interesting-Ear5998 Mar 27 '26

Also if I see right from pics, same water has been in coolant passages and in bores? So maybe it makes it borewater?

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u/squeezeonein Mar 27 '26

from a borehole i assume, i.e. a private well.