jervn4 Posted February 14 Share Posted February 14 In the process of doing a repower, restoration and retrofit on a 1973 R600 to a E7-Etech-355/380 my college club is building, We pulled our engine out of a 2000 Mack vision, with 615xxx miles. We are almost guarenteeing the motor was rebuild or is a reman as the cylinders have amazing crosshatch, engine is clean as a whistle on the inside, as well as one of the heads was replaced at some point and the front timing cover has been messed with before(cam replacement). Non the less this is not a Jacobs brake engine, this has the Mack "powerleash" or the "Elephants foot", or "dynatard" whatever you refer to it as, it has the Mack Rocker arm engine brakes, however it is missing the solenoids and we are trying to locate them. Our parts contact cannot find anything on a Etech with Dynatard in the year truck we have and actually said that the block number says its supposed to be a jake brake engine which it isnt, and in all the Etech manuals it isnt mentioned one bit, however our truck did have a engine brake switch and all the pieces are there minus the soleniod. Can anyone shed light on why we might not have anything coming up as far as soleniods for the Dynatard. Any information would be greatly appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/ Share on other sites More sharing options...
Adkat Posted February 14 Share Posted February 14 G'day jervn4, looks like you've got an ASET engine, not an etech. We didn't get them here in Aus, but they were the start of the emissions engines. Reckon @Joey Mack will be able to steer you right 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569300 Share on other sites More sharing options...
Joey Mack Posted February 14 Share Posted February 14 ASET, with Powerleash for sure.. Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569301 Share on other sites More sharing options...
Joey Mack Posted February 14 Share Posted February 14 I dont see the head bolt with threads in it for the celenoid wire eyelet to be bolted too for ground. Do you have more pictures of the engine and what was bolted to it. Just curious. Its a good find. If it came out of a CX-613 it was swapped for an E-Tech. The current engine is 2004-2006. I do not have a way to run the blocks numbers, so im going off my brain, instead of a real data base. 🍻 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569302 Share on other sites More sharing options...
jervn4 Posted February 15 Author Share Posted February 15 14 hours ago, Adkat said: G'day jervn4, looks like you've got an ASET engine, not an etech. We didn't get them here in Aus, but they were the start of the emissions engines. Reckon @Joey Mack will be able to steer you right Kinda what i was thinking, However it has all the makings of a E-Tech electronically, And doesnt have a EGR system or any sort of emmisions and externally looks like an Etech prior to us disasembling it. Also has the Older style ECM location on the lower side of the block not like a Aset. Starting to think its some sort of frankstein rebuild. Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569412 Share on other sites More sharing options...
jervn4 Posted February 15 Author Share Posted February 15 14 hours ago, Joey Mack said: I dont see the head bolt with threads in it for the celenoid wire eyelet to be bolted too for ground. Do you have more pictures of the engine and what was bolted to it. Just curious. Its a good find. If it came out of a CX-613 it was swapped for an E-Tech. The current engine is 2004-2006. I do not have a way to run the blocks numbers, so im going off my brain, instead of a real data base. 🍻 Yeah More than likely a later year engine however its missing a lot of the later year parts on the motor itself, its running a Vmac3 system with the older style ECM and no sort of emmisions, one head was for sure replaced as it has previsions for a fuel return which the other doesnt. Has the conventional old school Etech manifolds, intake, and wiring. Kinda a frankenstein is what its lookin like but definitely a solid good running engine. We have sent our in house mack expert and the mack dealer for a loop on this one trying to find the right parts. FF3E5D97-4180-405F-A85C-24245BE8333C.mp4 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569415 Share on other sites More sharing options...
Joey Mack Posted February 15 Share Posted February 15 Ok.. E-Tech it is.. with power lease rocker set. What is the HP rating? Do you intend on tearing it down ? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569418 Share on other sites More sharing options...
Joey Mack Posted February 15 Share Posted February 15 The fuel regulator and bundle type oil cooler tell me what i need to know. Use it !! Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569420 Share on other sites More sharing options...
jervn4 Posted February 15 Author Share Posted February 15 10 minutes ago, Joey Mack said: Ok.. E-Tech it is.. with power lease rocker set. What is the HP rating? Do you intend on tearing it down ? The truck came factory with a 355/380, Were thinking thats what it is, Its a good running engine, we scoped the cylinders and it has fantastic crosshatch, and 45 pounds of oil pressure at idle hot. its gonna get a top end reseal, and put in for now. we see no reason to open up the engine. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569421 Share on other sites More sharing options...
Adkat Posted February 15 Share Posted February 15 And rh mounted ecm below the eups, definitely early etech. Strange with the rocker setups. And over here only the later CCRS Etech 470 came with the wastegate turbo. Definitely a mongrel build, but if the bottom ends in good nick a great platform to build off. At least you'll have the vcm to go with it 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75161-e7-etech-powerleashdynatard/#findComment-569424 Share on other sites More sharing options...
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