Author Topic: Exhaust Valve diamter 230 SL ??  (Read 5394 times)

Ben

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Exhaust Valve diamter 230 SL ??
« on: November 10, 2004, 06:37:29 »
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 ✝︎

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Re: Exhaust Valve diamter 230 SL ??
« Reply #1 on: November 10, 2004, 08:27:01 »
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
68 280SL

Klaus

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Re: Exhaust Valve diamter 230 SL ??
« Reply #2 on: November 10, 2004, 09:06:10 »
Tabellenbuch 1969:
valve stem diameter 8,948....8,970 mm

Klaus
1969 280 SL

Naj ✝︎

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Re: Exhaust Valve diamter 230 SL ??
« Reply #3 on: November 10, 2004, 12:29:32 »
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
68 280SL

Klaus

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Re: Exhaust Valve diamter 230 SL ??
« Reply #4 on: November 10, 2004, 14:18:37 »
naj is correct, I looked at the intake valve.

Klaus
1969 280 SL

Ben

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Re: Exhaust Valve diamter 230 SL ??
« Reply #5 on: November 11, 2004, 04:03:46 »
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.

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  • Benz Dr.
Re: Exhaust Valve diamter 230 SL ??
« Reply #6 on: November 11, 2004, 13:06:26 »
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
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn
1966 230SL 5 speed
1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1990 560SEC

Ben

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Re: Exhaust Valve diamter 230 SL ??
« Reply #7 on: November 12, 2004, 02:48:29 »
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

 

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