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  #1  
Old 03-11-2008, 10:59 PM
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new here have a few questions

Hello, new to diesel benz, not diesels, I have several cummins, & a couple ford (internationals) never had a benz & got this one pretty reasonable I thought I might drive it back & forth to work if I can get it to run good. If not I will probably just resell it.

Just bought a 1983 300sd, it has about 350k on it has a terible exhaust leak & misses on 2 cylinders, I bought it this weekend, I cracked the injector lines open today & makes no difference on 1 & 2. there is little pressure at those 2 lines, I will check the compression at first chance to see the mechanical condition. Is there any tests for the pump without taking it off & bench tested? It came with the parts to fix the exhaust. There are some used pumps on ebay cheap, I may get one of those & just try it, probably cheaper than a bench test!!
Thanks

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  #2  
Old 03-11-2008, 11:04 PM
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Pumps dont go bad too often.

Check the basics, then compression, inj pops and patterns and give it a valve adjustment.
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  #3  
Old 03-12-2008, 05:22 AM
toomany MBZ's Avatar
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Quote:
Originally Posted by TMAllison View Post
Pumps dont go bad too often.

Check the basics, then compression, inj pops and patterns and give it a valve adjustment.
Agreed.
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  #4  
Old 03-12-2008, 05:48 AM
ImBroke's Avatar
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Quote:
Originally Posted by TMAllison View Post
Pumps dont go bad too often.

Unless you're me and have two bad ones in a row.
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  #5  
Old 03-12-2008, 09:18 AM
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if it's 1 and 2, try putting those injectors on 3 and 4 and see if the problem moves... could just be bad injectors.
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  #6  
Old 03-12-2008, 06:00 PM
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Yes I had thought about that & what about a blown head gasket between those 2???
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  #7  
Old 03-12-2008, 09:07 PM
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A blown head gasket is possible.
The valve clearances on these engines get tighter and tighter as the valves wear. I would do a vlave adjustment before I do a compression test. The company Harbor Freight sells an inexpensive compression tester; they may have a local store and are also in the internet.

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