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Old 05-26-2004, 06:45 PM
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Join Date: Jan 2004
Location: Simcoe Ontario Canada
Posts: 33
Have I wrecked my new engine ALREADY?

Long story short....rebuilt 2.3 Engine 190E..1500Km on the engine. Coming home today...charging light comes on....5 miles from home, I think "no problem" I'll get it home and look at it...temperature rising ...120 C..OH GEEEZ! But knocking...I figure.."oh, all the other guages are going nuts, so I bet the temp gauge is OK too..oil pressure is OK at 3 bar....get it home, turn in to the driveway (only turn since the failure) the steering is hard..OK it's a belt. Park it. Nice little bit of steam escaping from the PLASTIC rad hose assembly, and , no surprises, no belt. BUT ..what's this? ..where's the tensioner pulley? GONE! looks like the bolt broke off and the pulley is gone. I can replace the pulley OK, and the RAD is a snap (if NOT cheap) But my major concern is

Did I wreck my ENGINE? will it take 120 degrees for 4 miles? it still had most of the coolant in it when I parked it.

I can't bear it. $3K into that it a goner cause of a BOLT?

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Old 05-26-2004, 07:02 PM
pesuazo's Avatar
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Join Date: Oct 2002
Location: Near Raleigh, NC
Posts: 580
Sorry to hear about your situation. We will not know until the engine is back running with a new tensioner and belt.
These engines can take lots of abuse, so I would not be surprised if the engine is OK.
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Old 05-26-2004, 08:34 PM
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Posts: 541
whenever your car is close to overheating you want to turn on the heater to max as soon as possible as that usually helps to cool the coolant. the heater matrix is nothing but a small radiator.

as for damaging your engine its possible.

you should be paying more attention to your instrumentation and making sure you
a) have good oil pressure
b) are not close to over heating (near or above 100 mark)
at all times.
bmw 2002.
long live the legend
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Old 05-26-2004, 08:45 PM
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Join Date: Jan 2004
Location: Simcoe Ontario Canada
Posts: 33

Well so far one vote for yes, the engine is probably OK, and one vote for possible I'm no further ahead than I was when I started.

For what it's worth, after the engine cooled down and I charged the battery, the engine started and ran for a minute until I shut it down..idle a bit rough, but doesn't feel like a miss....maybe low voltage to the FI computer?
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Old 05-26-2004, 09:43 PM
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Join Date: Sep 2002
Location: Ewa Beach, Hawaii
Posts: 333
I had problem similar to yours. I was stuck in traffic (real bad accident, I was basically stopped) and my fan wouldn't go on. I was ****ting bricks because the temp guage was at MAX. I didn't notice it initially because as long as the car was moving, the temp never got too high. Something was wrong with the thermostat. After getting the thermostat fixed my mechanic told me that these engines run hot. My fan does not kick in until the temp guage is approx 3/4 max. The engine still runs fine, so hopefully yours is O.K. too.

The tensioner pulley on my car also broke and the exactly same thing happened, my steering was gone. when I opened the hood, the belt was off and the tensioner pully was broken. I had the hardest time fixing that pully. I ended up havign it towed to the mechanic to continue my attempts to fix the tensioner pulley.

Good luck.
1986 Gold 300E 4Dr automatic
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Old 05-26-2004, 10:32 PM
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Join Date: Jan 2004
Location: Simcoe Ontario Canada
Posts: 33
What's the max temp you saw?

---I THINK it was in the red but I can't remember

Did the flying parts hit anything and damage anything?

---not a thing, but If I still had the belly pan on the car I'd still have the pulley! ( I left it off after I rebuilt the engine to facilitate the montoring of possible fluid leaks)

How much coolant did you lose?

---hardly any

Did the steam loss due to damage by flying object?

--no, the steam came from a crack in the upper rad hose housing on the rad...caused, I believe due to the rad's age, and the extreme heat

Can you rent a pressure tester and do a cooling system check?

- I have access to a tester so n/p there
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Old 05-27-2004, 01:07 AM
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Join Date: Jan 2001
Location: oregon
Posts: 2,013
I'd change the oil for good luck and to see if there is any coolant in the old oil. You could do a compression and or a leak down test.My guess is the worst thing you might have done would be to warp the head or blow a head gasket .But My guess is that if you still had all your coolant that you did no damage.I think that the one belt system that most if not all car makers use is one of the worst designs possible .......

William Rogers........
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Old 05-27-2004, 02:32 AM
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Join Date: Sep 2002
Location: Denmark
Posts: 412
Another vote for no major engine damage.

If you hardly lost any coolant, i'd say your engine is ok.
If your engine had become hot enough to damage the internals, your coolant would have vapourized long ago..

I agree with William. -Change the oil. Your engine needs a little goodie after this.

Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes!

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Old 05-27-2004, 03:53 PM
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Wont know till ya drive it.
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Old 05-27-2004, 04:14 PM
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Join Date: Apr 2004
Location: Tallahassee, FL
Posts: 586
Beware of crankshaft damage.

My wifes Hyundai blew a waterpump. She noticed it relatively quickly and shut the car down, but it did overheat.

I replaced the waterpump but now the crankshaft is messed up. I keep sheering off harmonic balancer bolts. Seems they go out after about 2000 miles now.

Other than that the engine runs fine. A little noiser than it used to be without any noticable performance loss.
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I'm not a certified mechanic, but I did stay at a HolidayInn Express last night.
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Old 05-27-2004, 06:57 PM
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Location: Simcoe Ontario Canada
Posts: 33
As much as Hyundai has improved things in the last few years, I wonder if their parts are as hefty an over engineered as Mercedes...
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Old 05-28-2004, 07:35 PM
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Join Date: Jan 2003
Location: Matthews, NC
Posts: 1,356
120 C = 248 F. Many Domestic cars don't turn on the cooling fan until 240 {+ or - 10). I don't think you have any thing to worry about.

84 500 SEL (307,xxx miles)
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