Just a theory here but.......If your source of iron IS timing chain wear
could it make any sense at all that the longer you run it the less it wears
until the point of failure? I don't know how to explain what I am
thinking......Kind of like there is less tension on the chain as it wears
more so it would wear less until it breaks........Does what I am saying make
any sense at all or am I just dreaming again?
Mike
----- Original Message -----
From: "Marshall Booth" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Wednesday, December 06, 2006 9:08 AM
Subject: Re: [MBZ] Cold start
Curt Raymond wrote:
Since everybody else is posting about their recent cold starts...
It got to 13F here last night, was about 19F when I went out this
morning. Let the glow light cycle and then maybe 20 seconds more, 2 pumps
on the throttle and hold at halfway, hit the key and it fired up like it
was 50F out, no worries whatsoever.
I'm pleased, this would seem to carry my theory that the iron levels
shown in that car's oil analysis isn't really anything to worry about as
long as each change continues to see levels fall.
-Curt
'85 190D "Dory" 254kmi
What does timing chain stretch look like? Timing chain wear is a common
source of "iron" in the oil.
Marshall
--
Marshall Booth Ph.D.
Ass't Prof. (ret.)
Univ of Pittsburgh School of Medicine
[EMAIL PROTECTED]
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