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  #1  
Old 05-07-2003, 01:48 AM
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Quiz for everyone

What was the first Mercedes car model/year that has (automatic) hydraulic valve lifters?


Eric
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  #2  
Old 05-07-2003, 04:52 PM
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My guess is the 75 or 76 M117 (450SEL/SL) in the US. The same engine might have been available earlier in Europe.

I don't know if the M100 had hydraulic adjusters earlier or ever.

Sixto
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Old 05-07-2003, 06:13 PM
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1976 450SEL/SL
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  #4  
Old 05-07-2003, 07:00 PM
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Dear Sixto and M.B.DOC:

You are absolutely right.

BTW, is there any reason why hydraulic lifters are not available in much later models such as W123 (1980-1985) etc....? Having
to manually adjust the valve lashes periodically is not a good idea.

Best regards,

Eric
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  #5  
Old 05-07-2003, 08:03 PM
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I think hydraulic adjusters were available in the M102 which powered the W123 200 and 230E which were not available in the US. I don't know if the M123 had hydraulic adjusters. The M123 was not available in the US either.

Sixto
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