Slartibartfast Posted May 12, 2017 Share Posted May 12, 2017 Wow. That sucks. I don't know what would cause that, other than a defect with the new pump or something getting sucked into it. Maybe it wasn't tempered properly? At least the damage is limited to the pump. Link to comment Share on other sites More sharing options...
adamzan Posted May 12, 2017 Share Posted May 12, 2017 OEM nissan pump, or aftermarket? Aftermarket parts are such @!*% these days. I'd rather take my chances with used/lower mileage nissan pump. 1 Link to comment Share on other sites More sharing options...
snowboard419 Posted May 13, 2017 Author Share Posted May 13, 2017 It was the hitachi brand off of rock auto which they listed as the oem mfg. I ordered a different brand to replace it. Still not sure if it was the pump or the installer, just glad the pump was the only damage. New pump should be here early next week so hopefully we will be up and running next weekend. Link to comment Share on other sites More sharing options...
adamzan Posted May 15, 2017 Share Posted May 15, 2017 Good luck, I have never installed an oil pump so I'm not the guy to ask, but hopefully the new one serves you well. Link to comment Share on other sites More sharing options...
2milehi Posted May 15, 2017 Share Posted May 15, 2017 (edited) Well it was good that the engine did not make oil pressure pushing all those broken bits through the engine (oil filter "should" catch it). Make sure that there is no damage to the crank "flats" that drive the oil pump. BTW is the damage of the driven gear in the flat area? I recommend that you disassemble your next oil pump (even if it is new) and get a good visual on everything. Edited May 15, 2017 by 2milehi Link to comment Share on other sites More sharing options...
snowboard419 Posted May 17, 2017 Author Share Posted May 17, 2017 Yes very glad it failed the way it did, and not pump a bunch of crud through the engine. I disassembled the one that blew chunks( may or may not have contributed to the failure ). I will definitely disassemble and test fit once I find a pump that does not show up in the mail like this Sent from the twilight zone Link to comment Share on other sites More sharing options...
snowboard419 Posted May 17, 2017 Author Share Posted May 17, 2017 Perhaps the 3rd pump I order will work Sent from the twilight zone 1 Link to comment Share on other sites More sharing options...
2milehi Posted May 17, 2017 Share Posted May 17, 2017 ^^^^ That SUX 1 Link to comment Share on other sites More sharing options...
snowboard419 Posted May 21, 2017 Author Share Posted May 21, 2017 I have oil pressure Sent from the twilight zone 4 Link to comment Share on other sites More sharing options...
snowboard419 Posted May 22, 2017 Author Share Posted May 22, 2017 So I got the new, new ,new oil pump in the mail the other day went ahead and took it apart and glad I did, the gears felt crunchy and found out they had not been deburred properly and were hanging up on the housing, I took the gears to some fine emory cloth on a nice flat surface to lap the surface to an acceptable finish. Getting new parts that are not worth a @!*% is starting to get very annoying I have since gotten it installed, had oil to the filter in about 10-20 second crank, oil to the turbo another 20 sec or so. Turned on the fuel, plugged in the coil and nothing. Repaired the damaged connector for the crank sensor and IT LIVES. . Had it running for about 10 min or so, running really good, no leaks, as it warmed up it stalled out but I did not have all the sensors hooked up, or the intake piping, tank is on empty, have not made any adjustments to the tuning etc. So im not worried. Still have a bunch of crap to bolt on before it is mobile but it is running. 3 Link to comment Share on other sites More sharing options...
silverton Posted May 25, 2017 Share Posted May 25, 2017 Can you list the three part numbers of oil pumps you bought, so we can not have to go through the same trouble you did? RA has a rock (haha) solid return policy so it's not that big of a deal, it's just all the lost time of your project sitting there waiting... 2 Link to comment Share on other sites More sharing options...
snowboard419 Posted May 29, 2017 Author Share Posted May 29, 2017 So over the weekend I have gotten everything put together and finally able to hit the street. And my butt dyno is happy. I have the boost turned down about as low as I can and it is still a completely different beast . Sent from the twilight zone 3 Link to comment Share on other sites More sharing options...
neilca Posted May 30, 2017 Share Posted May 30, 2017 What injectors are you using. I had read it was impossible to get big injectors for the stock fuel rail in a turbo application. Has that changed? Link to comment Share on other sites More sharing options...
adamzan Posted May 30, 2017 Share Posted May 30, 2017 You could use supercharged Xterra injectors? Link to comment Share on other sites More sharing options...
Snowboarder12345 Posted May 31, 2017 Share Posted May 31, 2017 Iirc some subie injectors will fit in the stock fuel rail. Link to comment Share on other sites More sharing options...
snowboard419 Posted May 31, 2017 Author Share Posted May 31, 2017 It is running subie 370cc side feed injectors iirc, the injectors came from the original build Sent from the twilight zone 1 Link to comment Share on other sites More sharing options...
neilca Posted June 1, 2017 Share Posted June 1, 2017 Is this a single or dual turbo application and what kind of boost are you planning? Thanks for the info I may use this in the future. Link to comment Share on other sites More sharing options...
2milehi Posted June 2, 2017 Share Posted June 2, 2017 It is running subie 370cc side feed injectors iirc, the injectors came from the original build Sent from the twilight zone You sure that the yellow top STI injectors aren't in there? Link to comment Share on other sites More sharing options...
snowboard419 Posted June 3, 2017 Author Share Posted June 3, 2017 If they are yellow I need to get my eyes checked. Looks like a blue/dark purple Sent from the twilight zone Link to comment Share on other sites More sharing options...
2milehi Posted June 3, 2017 Share Posted June 3, 2017 (edited) That is right, I found some 300ZX injectors. Been doing different cars through the years and don't remember exactly what I put where. That is right, I found some 300ZX injectors on ebay for the Pathfinder. Been doing different cars through the years and don't remember exactly what I put where. Edited June 3, 2017 by 2milehi Link to comment Share on other sites More sharing options...
snowboard419 Posted June 3, 2017 Author Share Posted June 3, 2017 (edited) Can you list the three part numbers of oil pumps you bought, so we can not have to go through the same trouble you did? RA has a rock (haha) solid return policy so it's not that big of a deal, it's just all the lost time of your project sitting there waiting... HITACHI OUP0020 Enginetech EP060 The Hitachi gernaded upon first crank, the first enginetech came damaged, the second came and needed some deburring on the gears and is also now leaking(details to follow) Is this a single or dual turbo application and what kind of boost are you planning? Thanks for the info I may use this in the future. Single at 4 psi now, plan to run around 10 once I get a wideband to monitor afr's. Edited June 3, 2017 by snowboard419 Link to comment Share on other sites More sharing options...
snowboard419 Posted June 3, 2017 Author Share Posted June 3, 2017 So here is an update on the project. I have almost 200 miles on the rebuild now, running at about 4 psi boost and this thing is an absolute blast to drive even at the low boost level it really wakes this engine up. I have been playing with the tuning a bit to clean up the idle and part/no throttle cruise range and have ordered a wideband o2 kit to make sure the tuning is good to turn up the boost. But my effing oil pump is leaking, (i could not find enough emoji's to demonstrate my frustration) After first getting it going I had a moderate oil leak that looked like it was powersteering, the pump was making a little noise no big deal because I have extra parts lying around. Tonight I pull it in the garage to pin down my leak (which is getting worse) and found it leaking out of the pressed in welsh plug in the side of the oil pump. I can barely access the the plug to attempt a repair without having to remove the oil pump. Updates to come. Link to comment Share on other sites More sharing options...
Slartibartfast Posted June 3, 2017 Share Posted June 3, 2017 Jesus. Somebody's got to make a decent pump, right? Hopefully you can fix it without having to pull it all the way apart again. Sounds promising otherwise though! 1 Link to comment Share on other sites More sharing options...
snowboard419 Posted June 3, 2017 Author Share Posted June 3, 2017 I have barely enough room to attempt a repair, my thoughts are to customize a punch to flare the plug, remove and replace plug and add sealant, any ideas?? Sent from the twilight zone Link to comment Share on other sites More sharing options...
snowboard419 Posted June 4, 2017 Author Share Posted June 4, 2017 So I have ground a socket down to perfectly fit the plug and whacked it with a bfh. I also had to cut one of the bolts for the power steering mount to get access. And it is still leaking. So I ran down to the local gettin spot and got some of the fanciest highest temp, high tensile strength epoxy a man can get at 9pm on a saturday. Cleaned up the hole and schmucked it in. There will be an update tomorrow. 1 Link to comment Share on other sites More sharing options...
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