Hi guys,
I purchased a 2001 Discovery with what looked to be a blown head gasket (water mixed in the oil). I just finished reassembling everything, fired it up and more water in the oil. Seems to be getting in there pretty quick. When I took the heads to the machine shop, they surfaced the heads only. I did not get them pressure tested for cracks because I have never heard of them cracking (and being cheap). Is there anything else I should check before I take the heads back off? Thanks.

 

Sounds like you/shop screwed up.
Tear them down again and have the shop do it right this time using all in parts. Also do a much closer inspection of the block for cracks or sleeve issues.

 

Thanks Disco Mike. I'll start the tear down tomorrow. What exactly should I look for at the sleeves?

 

Don't touch it till we can talk in the morning. Send me your number and I'll call you first thing.

 

Did you ever drive the truck when it overheated initially? If so, it could have warped the aluminum.

 

I would suspect the front cover gasket unless you really messed something up on the heads

 

Thanks guys.
Mike I sent my number via pm.

 

Please do get back and let our wondering minds know how this was resolved. Good luck

 

If its running alright then your leak is probably from your timing cover into oil pan. If your loosing that much coolant through a head crack or liner your going to have check engine lights and misfires big time.

 

I would take the oil pan down and pressure test the cooling system to see if its from the timing cover or coming down from the cylinders (due to heads, block, or sleeve). dropping the oil pan to verify the leak location would be a hell of a lot easier than tearing down the heads again on a whim.