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  #1  
Old 02-03-2010, 11:32 AM
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Why does my 603A hate me so?

144k total. Since I've acquired it at 120k: "new" #17 head, valve stem seals, injectors reman'd by Bosch (but not pop tested), delivery valve seals, three OEM mounts (nothing on dampers, though).

Just yesterday I retorqued the DVs: 20, 20, 25. No effect. It still idles rougher than the 617A.

Good 3/27 B100 fuel for two years. Warm idle is as quiet as a low-quality gasser.

What gives?

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Last edited by BoiseBenz; 02-03-2010 at 11:46 AM. Reason: clarify fuel
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  #2  
Old 02-03-2010, 11:34 AM
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Is it any cylinder in particular? Any pinging or knocking? Is this on D2 or Bio? Bio should be a bit quieter.

I hear the reman Bosch injectors aren't often up to par...
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  #3  
Old 02-03-2010, 06:06 PM
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Wouldn't you need to pop test the injectors to tell you if they are working correctly.

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