Re: [MV] good vs bad diesels

From: jonathon (jemery@execpc.com)
Date: Fri Sep 01 2000 - 06:30:30 PDT


>Agreed to the extent that some brands of engines are prone to this and some
aren't. There are other issues on which to judge engine quality however..it
doesn't all come down to cavitation damage. The herc in the M35 series is
especially prone to this problem, because it idles like a cotton gin, and
was worse before some changes were made, but I don't think anyone would rate
it as a bad engine. It serves well for its intended use. My rule of thumb
in buying a diesel driven truck is to carefully evaluate the engine mounts.
If they are fatigued or broken, you probably also have cavitation damage.

Yes, I wonder how much of this is an issue of metalurgy, specifically that
some companies (and for some engines) use better or different metal than
others. I'm guessing that there must be a difference, even within Cummins
or example, between the way that they handle making industrial or marine
6BT's (for example) and the Dodge version as far as the level of MASS
production, seems to me that the more mass produced an engine would be the
more the accountants would get involved and try to cheapen it penny by
penny. I've seen this personally in my former enginering career in the
aerospace/defense industry.

later,

je



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