Reply With QuoteThose motors last FOREVER if you dont overheat them. Its probably toast.
Maybe the head gasket was leaking and now the cyliders are rusted and the
rings are stuck. I would pull the head to see what is going on and make a
decision from there.
KH
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Mercedes-Benz: 300SDL
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- 10-17 12:31 AM #1Glenflow55Guest
300SDL
I have a Beautiful 1987 Black on Black 300SDL that my nephew overheated somehow
a couple of years ago (his version of events doesn't add up, but whats done is
done). The car has started and run, but would overheat quickly, and had a rough
idle since the overheating. It's apparent either the head is cracked or warped,
or the head gasket is blown. Anyway, I have not done anything with the
vehicle, as I had purchased a new vehicle a couple of years ago, but planned to
attend to the issue at some point. Anyway, after about a month, since last I
started it, I went to start it today and it would not turnover, it would simply
attempt to turnover and then the put a huge drain on the battery. It is
definitely not the sorta feel I am used to when a starter is bad or when the
battery is low (which it isn't). Does this mean my engine has seized or has
something else seized? Can I recover from this, or is it most likely this
means the engine is shot, and must be completely rebuilt?
- 10-17 04:33 AM #2KevinGuest
Re: 300SDL
- 10-17 05:14 AM #3LarryGuest
Re: 300SDL
I'd guess that this is the same thing that happened to my Ford Diesel truck
many years ago.
Blown head gasket, or cracked head, left to sit will fill a cylinder with
coolant. You simply can not crank an engine with a liquid filled cylinder.
Just my 2 cents.
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- 10-17 05:47 PM #4T.G.Guest
Re: 300SDL
May have a hydraulic lock.
Coolant may have leaked into one cylinder from, as you say, a busted
headgasket or cracked head. If the engine turned at all, this cylinder
was soon in its compression stroke and, as we know, liquids don't
compress so the engine's rotation stopped. Or, if the engine didn't turn
at all, then one or another piston is seized and the whole thing must be
disassembled.
In the happier event of a hydraulic lock, removal of the glow plugs will
allow the trapped coolant to escape when the engine is cranked, or, less
happy, confirm that the engine is, in fact, seized.
- 10-17 11:20 PM #5KevinGuest
Re: 300SDL
I would just pull the head and see. Either that or call a wrecker to junk
it.
KH
"T.G. Lambach" <net> wrote in message
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- 10-18 01:21 AM #6MikeGuest
Re: 300SDL
Curiousity from another OM 603-er here... how much liquid would be left in a
cylinder that is hydro-locked once it has gone to TDC (and back?) with the
glowplug removed? What kind of space is left in the cylinder/prechamber
with the piston at TDC, and is it small enough that any water left in there
after a crank without glowplug would not hinder starting (and simply
evaporate once the engine got running)?
I hope my 87 300D never overheats! I better fix that vicious fan clutch and
find out where my slow coolant leak is coming from (going to)!
-Mike
"T.G. Lambach" <net> wrote in message
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- 10-18 03:12 AM #7KevinGuest
Re: 300SDL
Cooling is vital! Never skimp on cooling.
KH
"Mike "Rotor" Nowak" <net.remove> wrote in message
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- 10-25 06:30 PM #8KevinGuest
Re: 300SDL
I have an engine & transmission sitting on a pallet ready to ship if you're
interested.
Let me know.
--
Signed,
Kevin L. Bray
Cedar Park, Texas
'85 300SD
'86 300SDL
"Glenflow55" <com> wrote in message
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done is
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the
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