jeff351 Posted December 22, 2021 Share Posted December 22, 2021 I've poked around the internet about using a test stand to break in a Jeep 4.0, but not sure how to go about doing it. But my google-fu could be weak on this subject. Any pointers/advice/solutions? Link to comment Share on other sites More sharing options...
cruiser54 Posted December 23, 2021 Share Posted December 23, 2021 why? Can't you just install it and do the same? Link to comment Share on other sites More sharing options...
jeff351 Posted December 23, 2021 Author Share Posted December 23, 2021 1 hour ago, cruiser54 said: why? Can't you just install it and do the same? Concern is doing too much at once. Converting the Comanche from its current state of Renix 2wd 4cyl to OBD1 4wd 6cyl, and sorting out the various bugs along the way. With a fresh rebuild I want it to start and quickly get it up to RPM for proper break-in. Don't want to mess with cranking and finding a no spark/fuel/sensor failure condition. Another build I'm working on is a Ford 351c which will be comparatively easy to fire up on the test stand. Figure since the test stand will be available, might as well put it to use. I hate finding leaks later. Or I could just be over-thinking it. Link to comment Share on other sites More sharing options...
cruiser54 Posted December 23, 2021 Share Posted December 23, 2021 If it doesn't start right up, who cares? You're building oil pressure. Same as on a stand....... Link to comment Share on other sites More sharing options...
gogmorgo Posted December 23, 2021 Share Posted December 23, 2021 You'd need a wiring harness and ECU to run it, same as if it were in the truck. If you want to run it long enough to break it in, you'll need a radiator as well. Unless you have a stand already I don't see much advantage to doing it separately, either, other than the novelty of running an engine outside of the truck. Link to comment Share on other sites More sharing options...
omega_rugal Posted December 24, 2021 Share Posted December 24, 2021 do you have the stand? Link to comment Share on other sites More sharing options...
ghetdjc320 Posted December 24, 2021 Share Posted December 24, 2021 Only real advantage to running the engine on a stand is if you are planning to dyno tune it and swap/mod internals before installing. I suppose if you were doing some experimental engine work it also makes sense to run it on a stand. As was mentioned though, you would need harness, ecu, fuel, radiator etc. Link to comment Share on other sites More sharing options...
jeff351 Posted December 24, 2021 Author Share Posted December 24, 2021 21 minutes ago, omega_rugal said: do you have the stand? In the process of building one. I have another engine build that will definitely need to be run on a stand before going into my Torino Link to comment Share on other sites More sharing options...
jeff351 Posted December 24, 2021 Author Share Posted December 24, 2021 Good points about not really needing a stand for my 4.0 I think my project scope is changing a little here. Wife rolled her eyes tonight when I said I need a running/driving donor vehicle instead of the parts Jeep currently in the driveway. When she rolls her eyes, I take that as a hesitant yes lol who needs money anyways... Link to comment Share on other sites More sharing options...
watchamakalit Posted December 24, 2021 Share Posted December 24, 2021 We all need money, its the easiest way to buy parts and more vehicles...... Link to comment Share on other sites More sharing options...
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