M20 Head: Used, rebuilt, or remanufactured?
First let me explain, I bought this 88 325is with 145k on it (6 cyl. 2.5L). I got a great deal the body and interior are immaculate and there is no rust. The engine had a tap (or steady rattle or something) and it was sitting for 3 years prior to my purchase. it smokes (white w/ anti-freeze smell) after it's warm. I was planning on replacing the head with a used one from my friend's wrecked 325ix until this afternoon, when I removed the valve cover and found this:
3 bearings inside the head that hold one of the guide rails for the rocker arms (on the driver's side) were broken off and sitting next to 3 of the valve springs. (maybe causing the irritable and hard-to-identify sound?)
I have not put it on the road yet, nor done any serious work besides replacing the timing belt.
I was already planning on eventually replacing the head with a remanufactured one, but money is tight right now and i don't want to spend without need. My friend will give me his for a very good price (about $100)
From what I've read you might as well pull off a junkyard (or a friend's wreck) rather than purchase a rebuilt head, but i'm open to suggestion.
Used, as opposed to a remanufactured head for around $1000, seems like a no-brainer... maybe...
I need a second opinion, hopefully a 3rd or 4th too.
(excuse my lousy computer skills i don't know how to get a photo on the post but it's attached)