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  #16  
Old 07-01-2008, 11:44 PM
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I would be carefull about running your engine without oil pressure.. I know that when i run my engine after ive changed the oil, it takes a good 15-20 seconds for the oil pressure gauge to read any oil pressure.
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  #17  
Old 07-01-2008, 11:48 PM
ForcedInduction
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Quote:
Originally Posted by bgkast View Post
FWIW Non-turbo 617s have a gear driven oil pump I believe
Close, shaft driven.
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  #18  
Old 07-02-2008, 09:57 AM
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My manual shows a chain. I will post it if I can figure out how to. The lower pan is easy enough to drop, so I will do that and take a look. Thanks
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  #19  
Old 07-07-2008, 08:15 PM
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It was the chain. I pulled the lower pan as recommended. I put a photo of the broken chain in an album if anyone is interested. Thanks again for the help.
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  #20  
Old 07-07-2008, 08:26 PM
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How many miles would you estimate is on that engine? Any indication of why the chain divorced itself? Are the chain sprockets really sharpened or still a little blunt on the ends? Condition of the chain tensioner have any bearing on your opinion? How much side arc is present in the chain? Perhaps you can post any comparison to your new one before you install it. A new chain has little side deflection usually.
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  #21  
Old 07-07-2008, 08:27 PM
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How many miles were on the engine?
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  #22  
Old 07-07-2008, 08:30 PM
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That sucks, seems to happen to 617's around the 300k mile mark.
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  #23  
Old 07-07-2008, 08:40 PM
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Can't be sure about the mileage. The title and odometer said about 67,000 miles, ha ha. The sproket is sharp. When I tear down I will post some photo's, but it will be awhile.
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  #24  
Old 07-07-2008, 08:42 PM
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Well figure most people who bought these cars drove a lot, so when in doubt multiply its age by 15k-20k miles a year. That should be in the ballpark.
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  #25  
Old 07-07-2008, 08:48 PM
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Anybody ever use a chain with a masterlink? I read they should not be used because they rub. Autohouse sells them so I will ask them also.
http://www.***************/search/product.aspx?sid=cftvhhukbqum2t55yhv3tq30&makeid=800016@Mercedes&modelid=1193767@300DT&year=1982&cid=20@Engine%20Parts,%20Seals%20%26%20Gaskets&gid=5568@Oil%20Pump%20Chain
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  #26  
Old 07-07-2008, 09:00 PM
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Does the pump turn freely by the sprocket? On the 603 a jammed oil pump will usually shear the pump driveshaft at the sprocket rather than break the chain. The 617 pump might be made of sterner stuff rendering the chain the weak link (pun intended).

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  #27  
Old 07-08-2008, 05:55 PM
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It turns and it pushed the remaining oil out of it when I spin it.
I am not sure about the chain with the master link. The tensioner looks good as far as I can see. Both sprockets do not seem to be worn.
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