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Old 12-07-2009, 03:49 PM   #11
Bus Crazy
Join Date: Oct 2004
Location: New England
Posts: 1,009
Year: 1993
Coachwork: Ward Genesis
Chassis: International
Engine: DT466/MT643
Rated Cap: 77
Re: Detroit Diesels?

Originally Posted by kamoo
I know what they are in but correct me if I am wrong, these are not class 8 tractors. These are considered medium duty trucks.
Wrong. These are class 8's, single-axle line haul tractors, used to pull doubles.

You are right, 250k out of a 3208 is common. It isnt a bad engine, just nothing to write home about, just like a 444E. I dont know 100% but I didnt think that the 7.3 had oil fired injectors at any point in its life. The 6.0, which has been chastised, has them. Cat had casting problems with the 3116 and tons of injections problems across the board with all of the 31 series mostly due to the HEUI as does Ford/Intl. Injector replacements will cost you an arm and a leg on the 31 series as well as the 6.0. From memory it is over $200 per injector plus a ton of labor, I'm sure similar with Cat. In my 6.0, all have been replaced under 100k which is terrible considering I change my oil every 5k with synthetic despite Ford recommending every 7500 with dino. Even Cat mechanics will tell you to steer clear of them (31 series). A 31 series in a boat will make it lose value, just do a little research.
As has been said, the 1994.5-2003 7.3 PSD has HEUI, as does the 6.0 PSD. Having spoken to Cat mechanics, NOT ONE had anything bad to say about the C7 except the later ACERTs being a little thin on power.
Optimism is a mental disorder.
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