Domercnic
New Member
- Joined
- Jan 16, 2017
- Messages
- 7
- Reaction score
- 0
- Location
- Carmarthen, Wales
- Your Mercedes
- '89 W124 200T
Hello Everybody!
I'm a long-time admirer but a first-time owner of a W124 200T estate.
I bought her a few months ago - unfortunately the misfire I was told was to do with the carburettor, turned out to be down to low compression. I and a mechanic friend have diagnosed a sticky or leaky exhaust valve on cylinder No.2 using a cylinder leakage tester.
I'm attempting to remove the head myself; get the new valves seated, and the head skimmed by a professional, and then re-assemble. I'm doing this with the aid of a Haynes manual. Unfortunately the image, and instructions given, are for models without self levelling suspension (or aren't detailed enough for models with) and I don't want to cause any damage. There's a hex socket visible down the centre of the suspension pump shaft (connected to the front of the camshaft sprocket), I have tried to undo this (anti-clockwise) with an allen key whilst holding the camshaft still with a spanner on the flats at the back end of the shaft. Nothing has budged yet though.
Any idea if the hex socket is reverse threaded, or if the suspension pump shaft comes off somehow to give better access to the hex socket? Do I just need a bigger hex tool?
Many thanks to you all, the forum's been a great help to me in diagnosing and treating other faults too so far! (e.g. suspension sphere membranes)
Dominic
I'm a long-time admirer but a first-time owner of a W124 200T estate.
I bought her a few months ago - unfortunately the misfire I was told was to do with the carburettor, turned out to be down to low compression. I and a mechanic friend have diagnosed a sticky or leaky exhaust valve on cylinder No.2 using a cylinder leakage tester.
I'm attempting to remove the head myself; get the new valves seated, and the head skimmed by a professional, and then re-assemble. I'm doing this with the aid of a Haynes manual. Unfortunately the image, and instructions given, are for models without self levelling suspension (or aren't detailed enough for models with) and I don't want to cause any damage. There's a hex socket visible down the centre of the suspension pump shaft (connected to the front of the camshaft sprocket), I have tried to undo this (anti-clockwise) with an allen key whilst holding the camshaft still with a spanner on the flats at the back end of the shaft. Nothing has budged yet though.
Any idea if the hex socket is reverse threaded, or if the suspension pump shaft comes off somehow to give better access to the hex socket? Do I just need a bigger hex tool?
Many thanks to you all, the forum's been a great help to me in diagnosing and treating other faults too so far! (e.g. suspension sphere membranes)
Dominic
