Guest vodkaboy Posted February 16, 2004 Share Posted February 16, 2004 First question: are there any parts on the 810's L24E engine that i might want to put on my '77 Z's L28 with bad EFI and a ticking lifter (like EFI parts, better manafolds, better sensors, computer, head, fuel pump, etc)... otherwise, how much could i sell this engine for intact, considering it has less than 6000 miles on it since it got rebuilt (new cam, head redone, new injectors, new bearings, oil pump, rods, rings, checked the crank to be within spec, new alternator, etc) second set of questions: what am i going to need to convert this to diesel... im assuming the diesel fuel pump (the in tank one), the starter, im going to need to swap flywheels (unless one is severly incompatable with the other) as the current diesel has a flexplate, and the maxima has a 4 speed. other than that, just filters, and the such, then its ready to get converted to grease/bio diesel... anything im missing? info: my Z (for thinking about engine bits to swap): '77 280Z with a bad EFI system, and i think some quirks in the ignition as well. ticking lifter, and whatever stock head it came with. 810: 1979 datsun 810 with the L24E, tons of new stuff all over the engine, body is painted olive drab with a brush and it shows, came with an extra fuel pump, EGR system, wiper motor (what can i sell these for?), but is an otherwise straight car (transmission and rear end are in good shape, so i will be keeping them in it). engine: LD28 from a 1982 Nissan Maxima (same car as 810, basically), currently has a flexplate, not a flywheel. to be converted to grease in the near future... many thanks in advance Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted February 16, 2004 Share Posted February 16, 2004 The N47 head from the L24E may be swapped over, boosting compression. I'm not too familiar with the 810 diesels, but I'd be willing to be there is no in-tank pump. My Benz 300D has a gravity feed to the lift pump, mounted right on the injection pump. You may have to wire up the glow plug circuit as the gasser certainly doesn't have that. You need to wire your ignition signal to the fuel cut-off. I obviously haven't done that swap before; I'm only dreaming of converting my Toyota 4x4 pickup to diesel right now, and those are the questions I'm asking myself. But I'm driving on B50 biodiesel in my Benz right now, and will be converting to WVO in the next few weeks. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted February 16, 2004 Share Posted February 16, 2004 I was actually just pondering what would be needed to change an engine from gasoline to diesel. Can anyone recommend a good source for learning about how to do this and with what engines it can be done? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted February 16, 2004 Share Posted February 16, 2004 I was actually just pondering what would be needed to change an engine from gasoline to diesel. Can anyone recommend a good source for learning about how to do this and with what engines it can be done? From what I hear, the early GM V8 diesels were converted from gassers. The VW 1.6 diesel was a converted gasser as well. This is not usually feasable. Vodkaboy is talking about a complete engine swap; the LD28 diesel is a complete engine - different rods, pistons, head, front cover, chain, pan, very few common parts, athough the short block can be made into a gasser, stroked and all, with a gasser head. I don't think it would be worth converting a gasser to a diesel. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted February 17, 2004 Share Posted February 17, 2004 Ya, I was talking to my dad today and he says it can be done, but it is too much stress on the engine because of the much higher compression, heat, etc. Quote Link to comment Share on other sites More sharing options...
Guest vodkaboy Posted February 18, 2004 Share Posted February 18, 2004 so far, i need: diesel fuel tank, diesel starter motor, radioshack (no way in hell im geting a $50 ECU to cycle my glowplugs for me)... how does the fuel cut off work exactly? is it usually a mechanical or ECU controled thing, or is it just part of the ignition switch? could i just use the gasoline tank in there for the grease, and get a seperate diesel tank to put in the back deck? how about cooling the diesel? will the standard gasoline rad be enough to cool it, or will i need something more heavy duty? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted February 18, 2004 Share Posted February 18, 2004 Do you need a second tank right away? The gasoline tank should work fine. I have a 6 gallon marine tank I'm installing on top of my spare that I will use for starting/purging fuel. I'm not familiar enough with diesel injection pumps to know exactly how they are cut off when the key is removed. It should be a simple solenoid wired to the "ignition" key. For a cheap glow plug solution, just wire a switch and relay off the ignition circuit with a light to show the relay is on. Then wire a >50A fused battery connection to the plugs. It will take some experimentation to determine the optimum glow time to make the start as painless as possible. I imagine the existing radiator will do fine as well. It's not like the diesels make mad power - they are more efficient engines to boot. Quote Link to comment Share on other sites More sharing options...
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