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09 /17/ 25, 7:40pm

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Subject: Re: Diesels: rebuilt/replaced & Trans. Author: harvey lawrence [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 02/ 22/ 03, 8:24am In reply to: JollyJim 's message, "Diesels: rebuilt/replaced & Trans." on 02/ 21/ 03, 1:07pm Jolly jim you are correct when you say that a 3208 cat or a 6V92 detroit should be a 300,000 mile engine....and it is, but only if they are properly taken care of. A Cat,for example, will swallow valves if they are not adjusted periodically. People who bought these units to begin with were mostly used to running gas engines. A diesel is a new ball game,but most said if it is running right dont touch it..Wrong!!!!Too many ran their engines well over 120000 miles with no valves adjustments and unknowingly courted and found disaster.At a minimum the older diesels should have an adjustment job(called running racks)every 60000 max I do believe that is why it is very wise if to have valves done right away if you buy a used FC bird. Harvey Lawrence [ Next Thread | Previous Thread | Next Message | Previous Message ]

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[> Subject: Re: Diesels: rebuilt/replaced & Trans. Author: Jeff Miller [ Edit | View ] Date Posted: 02/ 26/ 03, 12:32pm I agree with Harvey that they SHOULD be high-mileage engines, but not all will be. For the most part these diesels don't die young, they are killed. Neglect and mis-use. I have not yet met anyone who had valve troubles in a 3208, I have personally adjusted mine and have not seen anything out of spec. in two FCs neither did my brother in his FC. Early 3208na engines had valve spring problems, this and the possibility of over-revving the engine on downgrades probably led to people believing that the valves are fragile, over-revving (valve float) or a broken valve spring are the only way that you might break a valve, poor valve adjustment would at worst burn a valve which would require head work only. They also suffer from improper fuel system maintenance, and from general neglect, as to the DD engines, I see as many Wanderlodges with replaced 2-stroke detroits as 3208s. Look it over well, if it is held together by duct-tape and bailing wire it has likely been neglected, and if it has been neglected where you can see it, it has probably been neglected under the hood as well. - Jeff [ Post a Reply to This Message ]