fjh Posted October 22 Share Posted October 22 1 hour ago, Macktruckman said: Awesome thank you and please let us know how it pulls and works. Mine is hopefully even more simple because I am putting the e7 engine in a truck im taking an E6 out of and reusing the e6 mechanical pump so I already have the throttle linkage all in place. I test fit the E7 injector lines and they thread right on the delivery valves on the Robert Bosch E6 pump. What i haven’t figured out is how exactly to remove the econovance? Do i remove the 3 timing adjustment bolts from the front of the timing gear? I also wondered about leaving the econovance, as fjh said and just plug the oil supply. But would i be smarter to use a boost switch or something and try to make the econovance actually function? Anyway I hope someone can help with that too. Awesome to hear your truck works and im anxious to hear how it pulls and runs josh My comments were made with not having to change the fuel line configuration in mind! if I remember on the v Mac pump the hub on the pump is not keyed to the shaft your mechanical pump is keyed! May make things a bit more of a hassle to time but should be doable! As long as the spring in the econovance is not broken and engine starts in the retarded position it should work fine once timed to 18-20 degrees fixed timing! Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-560517 Share on other sites More sharing options...
Popular Post SelfloaderMack Posted October 23 Author Popular Post Share Posted October 23 Well I ran all day with no issues, same power as I originally had before my computer started going haywire so I'm happy with that, more hp to come in the future. As far as the econovance goes I just unbolted the pump from it and I believe there was 3 internal bolts for one section and then another 4 external bolts in the same configuration as the pump, I'm not real wise on how it all works but from what I gather it was made mainly for emission purposes so I didn't see any advantage to keeping it installed, and I've heard that an e6 pump will bolt up to an e7 so you should be good as long as you know where to time it, I didn't torque the nut for the timing gear tight enough the first time so mine slipped and got out of time so make sure to get that plenty tight! 3 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-560588 Share on other sites More sharing options...
Macktruckman Posted October 25 Share Posted October 25 Awesome thank you guys. Im still not totally sure how exactly im going to go about mounting my e6 pump, whether to the back of the econovance or directly. Seems fjh is exactly right about the shafts being keyed and not. Either way I will figure it out and make something work. thank you guys for the help im learning! Lol josh 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-560797 Share on other sites More sharing options...
fjh Posted October 30 Share Posted October 30 On 10/25/2024 at 12:21 PM, Macktruckman said: Awesome thank you guys. Im still not totally sure how exactly im going to go about mounting my e6 pump, whether to the back of the econovance or directly. Seems fjh is exactly right about the shafts being keyed and not. Either way I will figure it out and make something work. thank you guys for the help im learning! Lol josh So what timing did you go for! just curious! Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561057 Share on other sites More sharing options...
Macktruckman Posted October 31 Share Posted October 31 (edited) I haven’t set the timing as i haven’t got the pump back from the pump shop yet. I figured out how mix and match couplers and bolt the E6 pump onto the econovance. I wanted to bolt directly onto the block but the 3 bolt adapter on the E6 pump won’t direct bolt to the E7. Have to remove that and then it will but theres a drain back hole for oil at the bottom on the e7 that the E6 pump leaves exposed so i didn’t know what to do. So i figured out how to couple and bolt it to the econovance. As far as timing my old E6 was set about 22-23 but i read on this forum of a person doing this swap and recommended about 17. He said better to have too little advance than too much? Said 17 or so would be better for lower end torque. So im contemplating. thanks Josh Edited October 31 by Macktruckman 2 Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561102 Share on other sites More sharing options...
fjh Posted October 31 Share Posted October 31 1 hour ago, Macktruckman said: I haven’t set the timing as i haven’t got the pump back from the pump shop yet. I figured out how mix and match couplers and bolt the E6 pump onto the econovance. I wanted to bolt directly onto the block but the 3 bolt adapter on the E6 pump won’t direct bolt to the E7. Have to remove that and then it will but theres a drain back hole for oil at the bottom on the e7 that the E6 pump leaves exposed so i didn’t know what to do. So i figured out how to couple and bolt it to the econovance. As far as timing my old E6 was set about 22-23 but i read on this forum of a person doing this swap and recommended about 17. He said better to have too little advance than too much? Said 17 or so would be better for lower end torque. So im contemplating. thanks Josh Hopefully things should be good! Long as the hub with the key fits the E& gear all should be good in theory! Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561109 Share on other sites More sharing options...
Macktruckman Posted October 31 Share Posted October 31 (edited) Another question i have about leaving the econovance in place is if I plug the oil line off to it how does it get oil to the bearings or bushings in the exonovance? Does it get oil through the pump itself? thanks josh Edited October 31 by Macktruckman Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561120 Share on other sites More sharing options...
SelfloaderMack Posted November 1 Author Share Posted November 1 I would assume it would get enough oil from the pump itself but I'm not sure, the original line to the econovance was used mainly for the oil pressure not so much for the oil itself so you should be fine, just out of curiosity does anyone know how many degrees of timing play there is in the front timing gear with the slots in it? Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561166 Share on other sites More sharing options...
fjh Posted November 1 Share Posted November 1 10 hours ago, SelfloaderMack said: I would assume it would get enough oil from the pump itself but I'm not sure, the original line to the econovance was used mainly for the oil pressure not so much for the oil itself so you should be fine, just out of curiosity does anyone know how many degrees of timing play there is in the front timing gear with the slots in it? Don't no off hand ! Set the engine on the degrees you want to be at ! install the pump pined on the number one cyl !And try to have the slot mid point when you install the gear all will be good ! you will have all the tweaking room you need! as stated the feed line is to run the econovance! Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-561173 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 Well my old E6 pump wont work so if anyone has any leads on a full mechanical pump for a E7-400 id love to hear. Thank you josh Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562841 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 is it because the E-6 Ambach pump has 3 bolt holes, and the E-7 has 4? I thought there was a posting inthe for salle section, where there was some Robert Bosch pumps for sale.... Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562842 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 Hi joey. No my old 3000 series robert bosch cant make enough to feed a 400 plus hp engine. Im surfing the for sale section now. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562843 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 I need a 7000 series (P7100) numbers would be 0 402 746 852 PES6P120A720R57157 thank you Josh Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562845 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 october 28th, in 'for sale' Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562846 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 and April 6th, in 'for sale' Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562847 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 The October one is a partial electric vmac pump. I am not seeing the April Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562848 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 I went to the search bar, selected 'everywhere', then typed in 'injection pumps for sale'.. then I just scrolled through the list.. Good luck, I wish I could help you better.. Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562849 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 I see the april now. All E6 pumps. Thank you though joey Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562850 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 How have you been doing? Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562851 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 doing good, hope you are.. just rellaxing tonight before I spend tomorrow cooking for me and my wife.. Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562852 Share on other sites More sharing options...
Macktruckman Posted November 28 Share Posted November 28 Happy thanksgiving Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562853 Share on other sites More sharing options...
Joey Mack Posted November 28 Share Posted November 28 You too Bud,, I hope you have a great day.. Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-562854 Share on other sites More sharing options...
The Heinz Posted December 2 Share Posted December 2 I used a VIN I have saved for a 1994 EM7 300 truck (1991 emissions), and found out that a company called D&W Diesel is the one Mack uses for reman injection pumps, so they might be worth a phone call. The number I see for them is 800-824-0151. Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-563091 Share on other sites More sharing options...
Macktruckman Posted December 2 Share Posted December 2 Thank you heinz I called them and they do in fact offer the one for the early E7-400 as well. The cost plus a 1200 dollar core charge because I don’t have a core to send in. So I am still in search. Thank you again. Josh Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-563104 Share on other sites More sharing options...
The Heinz Posted December 2 Share Posted December 2 At least it's an option! Quote Link to comment https://www.bigmacktrucks.com/topic/74616-converting-e7-400-back-to-mechanical/page/2/#findComment-563105 Share on other sites More sharing options...
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