I realize this is an old topic, but it's still very interesting...to me anyway...

I have a owned three metros now and I have done all the repairs and maintained them myself and they have served me well.
I recently bought a 95 Metro 1.0 liter 5 speed with ac, it's got about 125,000 miles and the previous owner got rid of it because, well he thought the engine was dying. After all, he rarely checked or changed anything and when I got the car the engine was hammering away, so the first thing I did was change the oil and filter (there was less than a quart of black crud in the crankcase) sadly the noise didn't go away, so I searched and came across this thread.
Anyway, after reading the thread I decided I should remove lifters (or are they called 'hydraulic tappets', I'm not really sure), clean them and re-install. Now the engine runs but I still have noise, which appears to be valve train. I think I figured out what is going on after removing {the cam and} the lifters again so I wanted to add my thoughts to thread and possibly get some advice too...
- Gosh, those pictures are great...to anyone who posts useful pictures as well an intelligent well thought out description without acronyms (or with definitions of acronyms), hats off to you!
- In the last picture there are seven parts, for reference it would be nice to know what those internal parts are called. (can someone say the official names from left to right or should I just call them a,b,c, etc.?)
- Seems obvious now, but it needs to be mentioned, because this is a decent sized job and takes time. It is necessary to remove the valve cover, the timing belt cover & the camshaft in order to get to the lifters, each one of those items is a task by itself (ie. while your engine is apart for example if you are planing on a doing an xfi cam-swap or engine rebuild or whatnot be sure to clean or replace your {hydraulic} lifters, makes sense right? Gosh it is a lot of work to have to do over again!)
- I found the easiest way to remove the internal parts of the lifter is to place the lifter on wood and hit it hard with a heavy hammer until the center literally pops out (sometimes once is enough, sometimes not!); the center part comes apart with two pliers or two vice grips or pliers and a vice, your choice. Careful, those parts are tiny and oily.
- Like I said, my engine ran but my lifters were completely solid (filled with crud), cleaning them helped but now there is still a lot of valve train noise. So, I have the lifters out again. The center rotates easily but is difficult to compress by hand (sticky) Maybe I didn't get off all the carbon deposits. Do I need to take the lifters apart again and soak all the parts in carb cleaner or laquer thinner as mentioned above or something else? Well, that is starting to make some sense. Or perhaps give up and replace the lifters, that makes sense too, any thoughts?
Well, sorry to be long winded, that's it for now. I hope to get this car on the road soon, can't wait... Thanks in advance for any advice...
