Re: Case IH 3220 tractors....why don't these have

Posted by Jonfarmer on July 04, 2006 at 21:53:25 from (165.121.144.252):

In Reply to: Re: Case IH 3220 tractors....why don't these have posted by Vacherie on July 04, 2006 at 19:42:01:

Ok, you paid $4000 for it brand new back in 1979, used it for 29yrs, put 760hrs on it, and if we totally forget about what it is worth now, it cost you $5.26 per hour in depreciation, but since it's probably still worth what?, say $1,500?, that would change it to $3.29 per hour. Slobbering is something diesels do for the most part, but gassers need the cobwebs cleaned out of them occasionally too. Slobbering uccurs when fuel doesn't completely combust due to the internal engine temperatures not reaching high enough levels, carbon (soot) builds up and start clogging up the engine, power will suffer due to the swirl chambers of the head getting built up, so the air/fuel mixture doesn't get mixed properly, the valves can get build up around and under them so they don't seal properly and this is what happens when an engine is used at low RPMs for looooong periods of time, not getting a good load put on it to get things warmed up, this is especially a problem in the winter in bitterly cold weather where mother nature takes away alot of the heat and it's times like this they'll really slobber and push a bunch of unburned fuel right up the stack because the engine relies upon heat for combustion, and if it don't have it, it can't burn it. So thats why a good workout is good for an engine every now and then, the temperature rises to what is called full operating temperature, at full operating temperature which is warm but not overheating, it cleans itself out, carbon buildup gets burnt away, and fuel fully combusts. The engine will start and run better. Doing what you have been doing is not hurting it, using it to mow you lawn, operating it at full engine RPM often, thats good and what you need to do. Diesels are best started in the morning and ran all day, they love this, but a bunch of real short uses isn't good.

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