It could still have a seepy water jacket F/R on the left head. If it's not pouring out you can leave it alone as long as you always check your coolant level. I had a D1 way back in the day that seeped out of a water jacket, and I ran it 65K after that without any issues.

 

It's not pouring out but does leave maybe 2 or 3 tablespoons of coolant on the ground after it dribbles past the side of the block onto transmission cooling lines and down from there.

When you say water jacket F/R on the left head, I'm assuming that would require a head gasket replacement no? It does have an oil leak at the rear of the engine which I suspect is a valve cover gasket, rear main seal or oil galley plugs.

 

A follow up question, if it were a head gasket leaking coolant is it safe to say there would be water in the oil or vice versa? I have neither and that might help dial in the coolant leak.

Thanks again all.

 

Not if it's an external HG leak. Best way to check is thoroughly clean the area and inspect for leak. You may need to use an inspection mirror and bright light to confirm leak location, more comfortable/cleaner than crawling beneath and looking up.
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Appreciate that tip, I can't seem to see the front of the drivers side head or the upper corner of the engine cover where I suspect the leak is coming from.
I know other work has been done to this Disco before I got it, I can see evidence in various places like the fan bolt and various clips that are broken. Any easy way to know if head gasket has previously been replaced?

 

Look at your firewall and see if you see any dents or rust by the rear of the heads. That's a tell tell sign they have been replaced.

 

Look for paint pen marks on head bolts, these are there so the tech can know when he turned the bolt 90 degrees.

 

Good stuff, thanks guys.

 

Mine had nice shiny heads with otherwise dull parts around them.

 

Knowing that HGs had been replaced earlier will not help determine or find location of current leak.
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