macattack Posted November 15, 2009 Share Posted November 15, 2009 (edited) here is some pics. can anybody tell me if its a e6 or e7.thanks Edited November 15, 2009 by macattack Quote Link to comment Share on other sites More sharing options...
Mackpro Posted November 15, 2009 Share Posted November 15, 2009 Looks like a E-7 in an MR. An E-6 would have lifter covers/sideplates on the block behind the injection pump. Quote Link to comment Share on other sites More sharing options...
macattack Posted November 15, 2009 Author Share Posted November 15, 2009 thanks. this is in an mr688s truck.antbody have any tips or tricks with an e7 engine. i never owned a mack engine before.thanks Quote Link to comment Share on other sites More sharing options...
bubbamobilin Posted November 29, 2009 Share Posted November 29, 2009 Ran an E7 in a 1989 Superliner for years and it was turned way up(it would pound the ground). We bought the truck in 1992, overhauled it in 1999, and put a new set of bearing and oil pump in it in 2008 and it still runs great!! Quote Link to comment Share on other sites More sharing options...
Maxville Truck Posted November 29, 2009 Share Posted November 29, 2009 thanks. this is in an mr688s truck.antbody have any tips or tricks with an e7 engine. i never owned a mack engine before.thanksI have several of these e-7's in MR's and have put several together for my farming customers...... pretty reliable setup, most of the ones i've sold have Auto's behind them. with a little pump "tweakig" they will pound pavement very nicely!!!! keep them clean (oil, radiator, air filter, etc.) just common sense stuff.... Not much for tips or tricks beside pump mods, or even larger injectors. Tons of experience with them ... if it at all misses immediately replace your injectors. otherwise pretty bullet proof motor.Chris Quote Link to comment Share on other sites More sharing options...
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