Resurrecting the $500 560SEL - PeachParts Mercedes-Benz Forum

tinypanzer · #1 09-25-2009, 09:02 PM

So, I've been able to make a little progress on the 560SEL, though not much due to limited time on my part.

Here's what I'm noticing so far.......

First, I had to raise the idle mixture to keep it from stalling. Now it will "idle" around 1100 rpm, but it surges and dips as something is clearly amiss. It feels like it might be missing on a cylinder intermittently. Fuel delivery seems okay based on rudimentary tests done without a pressure gauge.

I can hear a slapping sound from the front that sounds very timing-chainy. Not sure if this motor exhibits slapping on a bad chain/tensioner or just self destructs - input appreciated. I'm very new to the M119.

Transmission seems good and firm from the very limited test drives I've given it so far. I'm hesitant to drive it much until I know more about the state of the timing chain guides, which are dark and old, but don't appear cracked at all. I think I'm going to just do them to be safe.

A couple of the cam lobes have some wear, both on intake. Nothing too extreme, but there is a bit of wear going on. It does not appear that it's in the middle of a self-destruct, but it is a bit odd (in my mind) that all the cam lobes look great except for two. Oiler seems to be working fine. Guess I need to make sure to use an oil with plenty of zinc.

I will hopefully find out more this weekend, please reply to this thread if anything jumps out at you.

Thanks!