Exhaust Valve diamter 230 SL ??

[Ben]

Anyone have the diameter of the exhaust valve on a 230SL, actually the stem size ?

In fact I need to ensure I have the right exhaust valve seals, so even the correct exhaust valve stem seal internal diameter ??

Regards,
Ben in Ireland.
'64 230SL 4sp.
'03 CLK Kompressor

[Naj ✝︎]

Ben,
Don't have sizes to hand but here are Elring part #s for the stem seals which may help:

253.693 exhaust
022.233 inlet

174.750  engine set.

naj


65 230SL
68 280SL

[Klaus]

Tabellenbuch 1969:
valve stem diameter 8,948....8,970 mm

Klaus
1969 280 SL

[Naj ✝︎]

In my '66 databook, Klaus's figures are for an inlet valve.

Exhaust valve stem: 9.928....9.950

Valve guide inner dia:  10.000....10.015

naj

65 230SL
68 280SL

[Klaus]

naj is correct, I looked at the intake valve.

Klaus
1969 280 SL

[Ben]

Thanks guys this is what I wanted and confirms I still dont have thr right seals. The internal diameter of my seals is 9.0mm !!

Regards,
Ben in Ireland.
'64 230SL 4sp.
'03 CLK Kompressor

[Benz Dr.]

You can replace the exhaust valve guides with 280SL sytle and then use 250/280 valves and hardware. Much easier to get parts and the seals won't pop off.

Daniel G Caron

[Ben]

Ahhh yes good advice Dan.......I wish I'd thought of it when I did the head last year !

At the moment I am just trying to overcome the problem of a few seals popping off !

Thanks folks !

Regards,
Ben in Ireland.
'64 230SL 4sp.
'03 CLK Kompressor