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Old 05-18-2009, 11:46 PM
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babymog babymog is offline
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,765
Changing the serpentine belt on a 603 is a 15minute job including cleaning up, try that on a 617, ... adjusting the valves is a non-existant job on the 603, ...

I think that the 603 is an excellent engine and if not abused, very reliable. I believe that I've read about two timing-cover failures here since I joined years ago, vacuum-pump failures of 61x and 60x engines are about the same, IP failures about the same, seldom see a bottom-end failure or oil-consumption issue either.

Get a good one and maintain it reasonably well.
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