To remove the spring, you need a compressor that hooks under the cam. You can get the colletts out with needle nose pliers.

Since your have zero compression on that cylinder, obviously something catastrophic has happened, as has been suggested. I'm not aware of a way to tell which catastrphe has occurred without pulling the head.

To pull the cam box/head you do need several hundred dollars worth of special tools:

- spring compressor
- screw- or impact-type pin puller
- 17 and 19 mm hex bit sockets

It's a lot of work, but not rocket science.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe