Thread: Cracking Coolant Leak - But from where?

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I did wonder myself if the only thing holding back the leak was a decent plug of scale damming the flow, on reflection it sprang a leak whilst i was working on her, which is a whole lot better than blowing out on my way to somewhere. In this case the flat of the plug was badly corroded, the leak wasn't around the edges of the plug.

Dragging out the motor was a bit of an exercise but easy enough. In the course of it i got to clean out the bell house casing which was full of horrors and the clutch slave was clearly on its last legs, so i recon in all I've dodged a couple of future bullets.

Having got it all back together at the weekend I recharged it with another hit of citric acid (75g) as the scale in the system was pretty thick, I think i may have read this trick on the roversnorth web site. The thinking there was run it for a week with 100g of citric acid and water, then flush, run for a week on water to clean it up then back to your coolant of choice. I suspect in North America its probably a good idea to avoid such tinkering in the depths of winter!

Anyway, so far she's been holding the citric for almost a week now and no puddles on the floor.