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Author Topic: 230sl valve cover leak  (Read 2260 times)

dnadanny1

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230sl valve cover leak
« on: November 14, 2018, 04:07:57 »
HI there, i have a 1966 230sl, and i spotted a leakage problem at the valve cover seal.
No matter how  i tighten it according to the spec, it still leaks.
Any thoughts about this.

Thanks a lot.

William
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Benz Dr.

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Re: 230sl valve cover leak
« Reply #1 on: November 14, 2018, 06:01:47 »
Yup. Warped head and maybe the cover too. We used a piece of small O-ring and placed in the groove of the valve cove seal at each end so that each end would press down more than the middle. This may require a bit of experimenting to sort out. I would also check the top of the head to see how straight it is before you spend a lot of time trying to fix it.
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

stickandrudderman

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Re: 230sl valve cover leak
« Reply #2 on: November 14, 2018, 12:44:09 »
Leaking from where exactly?
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merrill

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Re: 230sl valve cover leak
« Reply #3 on: November 14, 2018, 14:52:13 »
is it time for a new seal?

also make sure the seal is installed properly,
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Matt
Austin Tx
66 230 sl - "white"
78 300 D - Blue
98 C230

Pawel66

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Re: 230sl valve cover leak
« Reply #4 on: November 14, 2018, 23:36:50 »
When you bend and squeeze the valve cover seal and it shows cracked rubber - time to change the seal. Not a very expensive item. Do not overtighten the valve cover, you will bend the cover supports and this may cause noises.
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Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class
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