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4-live
Date registered: Dec 1899
Location:
Vehicle(s):
| engine chain broke in two, 617A automatic
Sorry for the bad english :oops:
engine chain broke in two, wile the car wasn't moving, it was running in stationair after a short trip.
617A automatic
What is the damage you think???? |
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dai
Expert
Date registered: Apr 2006
Location: Oregon USA
Vehicle(s): 300GD 300TD BMW R100RS Landini 80F
Posts: 2110
| Re: engine chain broke in two, 617A automatic
Your motor probably has some bent valves. It is possible there is piston damage as well, because when the timing chain breaks the pistons will hit the valves. The motor stopped fast because the clearances are very tight. If it was idleing at the time the damage might not be too severe. Pull the head off and have a look in there. I hope the damage isn't too bad. Best of luck,
-Dai |
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BenzDieselTuner
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: engine chain broke in two, 617A automatic
i agree with dai, the only thing you can do now is open her up, and inspect the damage.......good luck!!
-justin |
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Warren T
Extreme Veteran
Date registered: May 2006
Location: Montreal
Vehicle(s): 230GE,300GD,300D
Posts: 519
| RE: engine chain broke in two, 617A automatic
If cam is not broken, put in a new chain and do a compression test
you may be lucky. Chain elongation should be checked by inspecting
cam sprocket. Look for a damaged tooth at the tip, then count
seven teeth to the right and you will find another damaged tooth.
If this is the case, chain is stretched.
Cheers Warren |
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T.Schuhe
Elite Veteran
Date registered: Apr 2006
Location: Olympia, Washington State, USA
Vehicle(s): 460 1985 LWB 300GD five speed
Posts: 711
| RE: engine chain broke in two, 617A automatic
Do you know how long the timing chain has been in this engine? Over 100,000 miles? Do you do a lot of short trips. And, you do your periodic value clearance checks?
I suspect that you have over 100,000 miles on this timing chain, perhaps much more. I have a firm belief that all MB timing chains need to be changed every 90,000 or so miles. I change those in gas and diesel vehicles that I have owned. The run better with a fresh timing chain, and I have a greater sense of peace of mind knowing that it I have done all that I can to keep parts from meeting each other when they should not.
Good luck with the repair. Sorry to hear of your troubles.
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roughneck
Expert
Date registered: Apr 2006
Location: UK, Germany & USA
Vehicle(s): 270 cdi.300 GD 300 GE.lwb 300 GE.swb. Disco 2
Posts: 4398
| RE: engine chain broke in two, 617A automatic
I would follow Warrens route first, if you are very lucky you will get away with it, otherwise , Best of luck. |
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stevieboyessex
Date registered: Dec 1899
Location:
Vehicle(s):
| timing chain
We had the belts go on our Audi, ( yes I know we should have had them done at the 60000 service ,we were only a 1000 over this and snap ).
When the breakdown guy came to pick us up, I told him they went just as we were pulling off from traffic lights, so damage should n,t be to bad, his comment was that it doesn,t matter if your doing 10mph or 90mph damage will be the same.
He was right everyone of the 20 valves bent or snapped.
Hope i,m wrong in your case though. |
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4-live
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: engine chain broke in two, 617A automatic
Ok thanks for the helpfull info, they will take a look at the problem next week, i will keep you posted  |
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4-live
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: engine chain broke in two, 617A automatic
I was waiting for a friend wile the engine was running, and it just stopt right there......
One thing worry's me, when the engine stopt I tried to stard it for 2 or 3 times and I heard some noise and than it was jamed :roll: could i made things worse by trying to start the car again??? |
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T.Schuhe
Elite Veteran
Date registered: Apr 2006
Location: Olympia, Washington State, USA
Vehicle(s): 460 1985 LWB 300GD five speed
Posts: 711
| RE: engine chain broke in two, 617A automatic
It surprises me that it turned over at all. This suggests that it was not harmed much, and if you only could spin the engine with the started, it likely did no or little harm. I would think that if the chair just jumped a few teeth it might stop the engine but not do much damage. A valve would eventually come into contact with a piston and make everything halt - stop. I have had this happen on a gasoline MB engine in the 1970's. It did no damage, but the engine was stuck with a value and piston stopping all motion. It was running at ideal when it happened. A diesel has more torque and depending upon what happeded to the timeing chair - complete failure vs. tension failure and skipping a tooth or two. Is the timing chain still on the cam shaft sproket? This could be a good sign. Tom |
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Wout
Veteran
Date registered: Apr 2006
Location: Belgium
Vehicle(s): Mercedes 280GE 1979/230G 1980/ C220CDI/A170CDI/
Posts: 145
| RE: engine chain broke in two, 617A automatic
Maarten,
Please check your mailbox. You,ve got a pm.
wkr
Wout
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4-live
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: engine chain broke in two, 617A automatic
je hebt mail terug |
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