cylinderhead warpage 130 engine - Mercedes-Benz Forum

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post #1 of 11 (permalink) Old 04-15-2014, 08:49 AM Thread Starter
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cylinderhead warpage 130 engine

Wondering if anyone has had issues of warpage on the manifold side of the cylinder head or if it is also liable to warp when the engine overheats .

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post #2 of 11 (permalink) Old 04-15-2014, 09:22 AM
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no , never seen that .
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post #3 of 11 (permalink) Old 04-15-2014, 05:10 PM
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I am rebuilding the engine as we speak but to have warpage on the side of the manifold on the head sounds very unusual as it is almost impossible to warp the head sideways.

How do you know you have warpage? what makes you think that is the case?

here is a pic of my M130 head afte rebuild for comparison.
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post #4 of 11 (permalink) Old 04-15-2014, 06:02 PM Thread Starter
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As a overheated head warps it takes up a bow shape around the centre area,this may effect the central area of the manifold side as it too moves up the same amount.
Refacing trues up the gasket face by cutting up the end areas to level the bowed up centeral portion .
My question was if the manifold area ever requires a similar correction as it too will be bowed inwards/up at the centre portion.

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post #5 of 11 (permalink) Old 04-15-2014, 06:17 PM Thread Starter
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Kavadarci.
I have a spare 130 engine .it runs lean and spits back , I have systematically substituted the distributer as well as the manifold with carbs from a good engine to isolate the fault ,lean condition remains though the engine runs for extended periods . Even the Valve timing checked using degree wheel.still lean spitting.
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post #6 of 11 (permalink) Old 04-15-2014, 07:49 PM
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Kav, I would love to see you take some artistic photos of your M130 engine. For example some shots that could be printed on a tshirt. That head with the valves looks amazing.
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post #7 of 11 (permalink) Old 04-15-2014, 08:14 PM
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Luna,
That would be your expertise; I'm not that good at artistic stuff as you.

Adler,
It sounds you have done more extensive troubleshooting that most of us would do.
I'm very doubtfull that warped head on the manifold side can cause what you are describing but I am not rulling out either. It must significant warpage, visual to the eye to do something what you are describing.

Have you looked at the timing chain? Few members have had timing chain worn to a level that would offset the engine timing.

Just a thought.
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post #8 of 11 (permalink) Old 04-16-2014, 08:58 AM
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if head was warped a bunch [ like 12 th ] you have to shim the cam towers at the end [ easy to do ]
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post #9 of 11 (permalink) Old 04-16-2014, 09:52 AM Thread Starter
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Very slight difference at the ends and cam pedestals correctly shimmed ,valve timing checked with degree wheel, dial indicator per manual ,slight stretch corrected with offset woodruf key.
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post #10 of 11 (permalink) Old 04-16-2014, 12:18 PM
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My cylinder head is being rebuilt currently and the shop told me they do have to hone the manifold itself to seat against the new head, maybe this is your case and you're interpreting it as a warped head on the side?

@Luna I got pics of my new head once it arrived in the shop and I thought the same thing. I plan on using my old head (not viable as a core) for some sort of art project also.
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