jeff20878 Posted June 23, 2014 Share Posted June 23, 2014 Hello all,I have an 1982 RD686SX steel nose cab and chassis (it used to be a roll-off) 18 & 58 axles, triple framed with NO frame spread...was garaged for most of its life.. I want to shorten it up and make it into a lowbed tractor, but I'd like some more power than the Tip Turbine EM6-283 it has now makesMy question is: can a charge air cooled E6 be mounted in an R600 model truck with a steel nose? Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/ Share on other sites More sharing options...
theakerstwo Posted June 23, 2014 Share Posted June 23, 2014 It would have to be a custom built cooler and I have looked into it for a friend.But I think you could do good by using a tip turbin from a 320 or 350 engine which has the water cooler in the box with the air cooler.I would start with calling global truck salavage for the parts.The air to air would have to have the tubes run thru all of the metal work on the front to get to the engine.Some one built one and installed it behind the rad but I think that is no good. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250191 Share on other sites More sharing options...
jeff20878 Posted June 23, 2014 Author Share Posted June 23, 2014 Thanks Glenn...are you saying that by adding an intercooler from a 320 or 350 tip turbine motor that my HP would be brought up to that level? I have heard of the 350 tip turbine, but not a 320...is that the same as the 300+ motor I've heard about?Thanks,Jeff... Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250206 Share on other sites More sharing options...
theakerstwo Posted June 23, 2014 Share Posted June 23, 2014 You would want to extend the fuel rack out some so it will have some more fuel. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250220 Share on other sites More sharing options...
jeff20878 Posted June 23, 2014 Author Share Posted June 23, 2014 Hi Glenn,I've attached a picture...would this be the 300+ engine? If so, is it also known as the "320" engine?Thanks so much for your help!Jeff... Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250235 Share on other sites More sharing options...
j hancock Posted June 23, 2014 Share Posted June 23, 2014 A 300 Plus/315 HP would have ETA673A stamped into the timing chain cast housing just forward of the fuel pump.Using the block number would help in narrowing down what engine you have.A Maxidyne 300/285 HP would be marked ENDT676. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250237 Share on other sites More sharing options...
David Posted June 23, 2014 Share Posted June 23, 2014 A chassis mounted air cooler is available for the steel nose. As seen in this picture, the grill bars are mounted forward and metal covers are added on each side of the radiator for the piping. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250245 Share on other sites More sharing options...
Superdog Posted June 23, 2014 Share Posted June 23, 2014 why not use a early tip turbine 350 engine. Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250253 Share on other sites More sharing options...
jeff20878 Posted June 23, 2014 Author Share Posted June 23, 2014 thanks everyone for your input!...Superdog...any idea where I can find an early tip turbine 350? I'd love to go with that option! Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250277 Share on other sites More sharing options...
jeff20878 Posted June 23, 2014 Author Share Posted June 23, 2014 thanks everyone for your input!...Superdog...any idea where I can find an early tip turbine 350? I'd love to go with that option! Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250278 Share on other sites More sharing options...
jeff20878 Posted June 23, 2014 Author Share Posted June 23, 2014 thanks everyone for your input!...Superdog...any idea where I can find an early tip turbine 350? I'd love to go with that option! Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250279 Share on other sites More sharing options...
Superdog Posted June 24, 2014 Share Posted June 24, 2014 Try Global or Manders in Lakville,MN . They shouldn't be that hard to find I wouldn't think.I always thought they were a damn good engine. My son loves the one in his Cruiseliner . Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250306 Share on other sites More sharing options...
jeff20878 Posted June 24, 2014 Author Share Posted June 24, 2014 I'll definitely give those guys a call...Here's another question...I've looked at my EM6-285 and compared it with the E6-350 tip turbine and all my service manuals. Everything looks the same: bore, stroke, intercooler, etc. What would I need to do to make my EM6-285 into a E6-350? Charge the injection pump or heads or? Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250385 Share on other sites More sharing options...
Superdog Posted June 24, 2014 Share Posted June 24, 2014 To be honest,I don't know what other differences there might be,but at best they would be minor ones,like you said,most things are identical other than pump and injectors,turbo probly,too. Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-250391 Share on other sites More sharing options...
Popular Post harrybarbon Posted July 21, 2014 Popular Post Share Posted July 21, 2014 We have fitted a E 6 - 350 / 2 valve Econodyne motor into a B model. The motor came out of a 1982 - R686 which had the intercooler in front of the radiator and one air cleaner. We have converted the intercooler to an intercooler over the top of the engine as in our pictures. We have fitted 2 Donaldson dry air cleaners. We are told that the intercooler over the engine cannot be fitted to a 4 valve motor. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253538 Share on other sites More sharing options...
mack mhe9 Posted July 21, 2014 Share Posted July 21, 2014 That's a sweet E6 Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253539 Share on other sites More sharing options...
steve p Posted July 22, 2014 Share Posted July 22, 2014 as we say in oz BULL SHIT I have 350 4 valve with tip turbine goes like the clappers Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253643 Share on other sites More sharing options...
2 STICK PUPPY Posted July 22, 2014 Share Posted July 22, 2014 A 300 plus is a 285 injection pump with 350 injectors and turbocharger. A 285 has a better torque curve Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253647 Share on other sites More sharing options...
harrybarbon Posted July 22, 2014 Share Posted July 22, 2014 Apology re my comment I forgot to say that the E 7 - 400 hp / 4 valve motor is not set up to take the intercooler on top of engine, we wanted to fit an E 7 / 400 hp motor but were told by a Mack company man it can't be done - is this true,we had a good working E 6 / 350 so we used it Quote Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253657 Share on other sites More sharing options...
j hancock Posted July 22, 2014 Share Posted July 22, 2014 Harry, That is some mighty fine looking jewelry! Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/36126-can-i-put-a-charge-air-cooled-e6-350-in-a-steel-nose-rd-686/#findComment-253668 Share on other sites More sharing options...
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