tl1975 Posted December 24, 2021 Share Posted December 24, 2021 I was at a repair shop awaiting some parts and there was a late 80's superliner in there for service. On the side of the hood it said "econodyne", and the person at the counter said it was an 88' RW613 with a 5 speed transmission, and he said it wasn't a V8 but a mack inline 6. Just for my own information, which of the inline 6 engines would mack have put in a econodyne superliner with a 5 speed?? Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted December 24, 2021 Share Posted December 24, 2021 (edited) E6 Edited December 24, 2021 by Onyx610 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 24, 2021 Share Posted December 24, 2021 yes Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted December 24, 2021 Share Posted December 24, 2021 There was E7s in them too, but that one was an E6 if it was late 80s. 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 24, 2021 Share Posted December 24, 2021 1990. first year for E-7 1 Quote Link to comment Share on other sites More sharing options...
tl1975 Posted December 24, 2021 Author Share Posted December 24, 2021 thanks for the info guys! 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted December 24, 2021 Share Posted December 24, 2021 I find it to be more common for an E6 to be under the hood then the E9. Just from the ones I’ve seen around. Every once in a while you get to see/hear that awesome v8! Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 24, 2021 Share Posted December 24, 2021 inline 6's were much better, in most situation's... No offence to the E-9... 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted December 24, 2021 Share Posted December 24, 2021 Must be a reason almost all diesel engines are inline. inline good for torque, great piston to crank orientation (straight up and down) and each piston connected to a different spot on the crank. True push/pulI…I heard the E9 had its fair share of issues. I also hear that it’s extremely hard to find parts for them today. Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted December 24, 2021 Share Posted December 24, 2021 Plus v8 diesels are very wide. Inline just tall. Quote Link to comment Share on other sites More sharing options...
mrsmackpaul Posted December 28, 2021 Share Posted December 28, 2021 Inline 6 are perfectly balanced were as a V8 is always out of balance Inline 6 has more bearings to support the crank V8 is or was a smaller physically size to fit into tighter spots than a inline 6 for the same power to weight Macks E9 was not as reliable in the heads as their E6, why this was the case I have no idea, perhaps it was pushed into production However if compared to other brands of motors at the time the E9 was comparable to most and better than some The trouble was other brands soon developed just as much HP and sorted out their reliability issues to the extent the E9 fell out of favor The E7 came along and by and large was a better motor and made good power for most applications The E9 was eventually sorted but it took a long time to make it the motor it should of always been Thats my take on it anyway Paul 2 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 28, 2021 Share Posted December 28, 2021 That pretty much sum's it up Paul... Quote Link to comment Share on other sites More sharing options...
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