Jim,
I found that the tensioner rail is 2mm wider than the slot. I don't have the
shop manual, but the Haynes manual alludes to a 'hook style' rail that requires
removal. It mounts on a pin by the crankshaft that requires a special puller
to remove which I lack. Don't know why they did that. Would have been so
easy to make the rail fit - 30 sec on a grinder. Removing the head is
incredibly troublesome.
So I tried grinding down the rail with the Dremel, but it's extremely slow. It
turns out that everything was fine inside the cylinders anyway (was looking for
prechamber damage). So I might just button it back up with the old head gasket
and hope it seals. Is there any reason that might not work?
Thanks,
Bruce
------------------------------
Message: 6
Date: Fri, 7 Aug 2009 06:21:32 -0700
From: Jim Cathey <j...@windwireless.net>
Subject: Re: [MBZ] 220D Head Removal
To: Mercedes Discussion List <mercedes@okiebenz.com>
Message-ID: <39606fc0-8355-11de-95a3-000502d9a...@windwireless.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> I am trying to remove the head on the 72 220D (long story why).?
> Everything is out and loose but the timing chain tensioner rail is
> interfering with the head.? It looks like the rail is every bit as
> wide as the slot in the head.? Do I need to remove the tensioner rail
> (and how is that done), or does it merely need a little
> 'encouragement' to fit through the slot in the head?
I wasn't present for our recent 220D head un-removal, but the top
end of the main tensioner rail is narrower than the hole, IIRC.
The plastic non-moving guide up at the top needs to come off.
(Threaded pin pulls out with a slide hammer, or crowbar forks
and a regular one if you're like us.)
-- Jim
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