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From: "Peter Frederick" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List"
Sent: Thursday, April 17, 2008 10:04 PM
Subject: Re: [MBZ] OM603 head, some cracks but no leaks. Keeper?
> No. The cracks will progress until they go through into the coolant,
> and
No. The cracks will progress until they go through into the coolant,
and you will have all the associated problems, probably pretty soon.
Not weldable.
Peter
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http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
Measure the protrusion of the piston above the block when you have the
head off. If any oil leaked into the #1 cylinder, it can cause a
hydrolock which will bend the connecting rod. Careful of whiplash when
you turn the crank by hand. The spring on the vacuum pump causes the
chain to lurch forward.
e it...
Very respectfully,
/s/
LCDR Max Dillon
'87 300TD 307k miles
Charleston SC
-Original Message-
From: Mitch Haley [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 17, 2008 10:15 AM
To: Mercedes Discussion List; Dillon, Meade M CIV SPAWARSYSCEN
Charleston SC J52
Subject: Re: [
> I haven't been on this list for several years, but decided to
> re-subscribe recently. Nice to see a few familiar names!
Welcome back. A word of caution though. We have been wandering (and wondering)
off topic quite a bit lately. Just a heads up.
Rick Knoble
'85 300 CD
'87 190 DT
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I don't know the specs on an aluminum head, but for the cast iron
heads, cracks less than 10mm in length were acceptable. Most common
cracks were prechamber to valve and valve to valve. I had one head
that had 9-10 mm cracks in each possible position, and it had been
running ok. Since I alre
Welcome back, Meade.
Hmm. On the one hand, combustion pressure is a whole lot more than
test pressure. OTOH, people have driven tens of thousands of miles
with cracked aluminum heads and no real troubles. I imagine the
vast majority of #14 heads still in use have those little cracks
near the val
Greetings Dieselvolk,
I haven't been on this list for several years, but decided to
re-subscribe recently. Nice to see a few familiar names!
To the topic: I purchased a used #14 head for OM603 motor for $200,
delivered to machine shop for testing and rebuild. They pressure tested,
it passed, the
