Hi Everyone!

I replaced the engine in my 2004 LR Discovery 2 about 3 years ago with about 37000 miles on 2nd engine now. Vehicle overheated for about 5 minutes before I pulled over and towed it to my mechanic. Ordered Head Gasket Repair Kit from Atlantic British, had my heads re-planed and leveled and my mechanic put it all back together. After job complete, same cylinder is leaking coolant EVEN THOUGH IT PASSED the pressure test. Atlantic British says that's weird and I and my mechanic are at a loss for words.

It's my daily driver and I have a young daughter SO....Any advice is greatly appreciated!!!

 

Did they pressure test it at operating temperature?

Where is it leaking? Internal or external? Misfires?

 

Yes, tested at operating temperature.

 

You mention the second engine... Was that a new short block, a rebuilt used block, or other?

Sounds like you have a cracked block but could just be a bad HG job.

No real way of knowing without pulling the head.

What cylinder is leaking and where?

 

badly overheated motors can warp both the heads on the deck of the block. Was the block checked to make sure it was still flat

 

To answer an earlier question... Yes it is leaking coolant inside the cylinder. And facing the engine from the front it is the second cylinder in on the driver's side.

 

I'm pretty sure there is no other way that coolant could get into that specific cylinder besides the block being cracked behind the sleeve into the water jacket.

 

Yes it was pressure tested at operating temperatures. It's leaking inside the same cylinder of the original problem which is when facing the engine is the 2nd cylinder in on the driver's side of vehicle. The leak is internal inside that cylinder. No misfires.

 

I mean I love this old car. It's been my daily driver for the past 4 years. The 2nd engine was a re-manufactured engine from reputable dealer in Florida. Unfortunately, the one year warranty has expired.

I'm done with these flawed 2003-2004 Discovery engines. Anyone have any luck with engine conversion, like a LS engine swap? I don't have to worry about inspections in my state.

 

A 4.6 from a P38 Range Rover seems to be a go to thing right now... Supposedly better quality control... I have my fingers crossed, but 20k miles and counting...