SleeperZ Posted September 27, 2013 Share Posted September 27, 2013 Is it possible to run the diesel L6 front cover on a gas L6 engine? Aside from the area behind the water pump, what else would be different? Maybe you have a diesel L6 cover. LD28 block is taller, front cover as well, of course. http://forums.hybridz.org/topic/50542-long-stroke-l28-using-ld28/ Quote Link to comment Share on other sites More sharing options...
LanceVance Posted September 27, 2013 Share Posted September 27, 2013 (edited) Here is the pump I received. Tried it again, and it definitely won't turn without modifying the valve cover. Looks to be the larger impeller to me, but the only other I have is the stamped type so that's of no real use for comparison. Edit: I forgot to mention that there are dremel marks on the outside identical to those recently posted. Edited September 27, 2013 by LanceVance Quote Link to comment Share on other sites More sharing options...
aarang Posted September 27, 2013 Share Posted September 27, 2013 Just got mine from RockAuto. Definitely doesn't turn in the front cover. The blades on mine overhang the rotor some. Rotor measures 75mm ( 2.95") across at the blade tips. Looks like mine could actually be a diesel pump. Quote Link to comment Share on other sites More sharing options...
Gareth. J. Posted September 28, 2013 Share Posted September 28, 2013 My blades overhang also but at the very most it measures 69.5mm. Measuring in the same way as LanceVance. Anyone want to sell theirs? Haha Quote Link to comment Share on other sites More sharing options...
Chris83zxt Posted September 29, 2013 Share Posted September 29, 2013 Did a quick measurement on mine. Aisin impeller diameter measured 2.958" (75.133mm). It would not fit two stock covers I have. Impeller would contact the 7 o'clock area by the water inlet (?). For comparison, my stock pump impeller measured 2.741" (69.621mm) and spun freely. Mine have the grind marks as well. Looks like they ground off a previous serial number or manufacturer name. I came up with the same approximate measurement (75mm) for the impeller on the one I received. Mine does have the ground off spot on the front as well. Quote Link to comment Share on other sites More sharing options...
Gareth. J. Posted September 30, 2013 Share Posted September 30, 2013 Anyone want to sell theirs? Haha I have some JDM 260z tail lights in good condition I can exchange for an LD pump. PM if you're interested Quote Link to comment Share on other sites More sharing options...
DuoWing Posted September 30, 2013 Share Posted September 30, 2013 (edited) Well I went and did a search for WPN079 on RockAuto and I get a Valeo water pump. So no idea what it's for, because it's not listed under Diesel Maxima. Never mind, looks like it's for a 280ZX and some other Nissan vehicles Edited September 30, 2013 by DuoWing Quote Link to comment Share on other sites More sharing options...
inline6 Posted October 16, 2013 Share Posted October 16, 2013 Well I went and did a search for WPN079 on RockAuto and I get a Valeo water pump. So no idea what it's for, because it's not listed under Diesel Maxima. Never mind, looks like it's for a 280ZX and some other Nissan vehicles I just did a search for WPN-079 on RA's site and it brought up two listings - first the valeo and second an application of 81 Datsun 810 and 82-83 Maxima only - look at the second listing, not the first one. Manufacturer listed is AISIN. Part numbers listed match the box that is pictured about page 3 (I think by Dreco) in this thread - a confirmed correct pump. I only bought one - there are three left. I'll let people know what comes, though by then, I doubt there will be any left. Quote Link to comment Share on other sites More sharing options...
Gareth. J. Posted October 16, 2013 Share Posted October 16, 2013 I just did a search for WPN-079 on RA's site and it brought up two listings - first the valeo and second an application of 81 Datsun 810 and 82-83 Maxima only - look at the second listing, not the first one. Manufacturer listed is AISIN. Part numbers listed match the box that is pictured about page 3 (I think by Dreco) in this thread - a confirmed correct pump. I only bought one - there are three left. I'll let people know what comes, though by then, I doubt there will be any left. I purchased the Aisin WPN-079 and received the gas pump, the model info on the box only lists LD engined Nissans. I contacted them to ask if they had the correct pump, or if they could measure any remaining pumps to confirm the correct size before I bought another one. The reply was 'no and we don't have a pump for your Nissan'. Strange thing was when asked what car I have I quoted all models, years and LD28 engine separately as printed on the Aisin box Quote Link to comment Share on other sites More sharing options...
inline6 Posted October 17, 2013 Share Posted October 17, 2013 I purchased the Aisin WPN-079 and received the gas pump, the model info on the box only lists LD engined Nissans. I contacted them to ask if they had the correct pump, or if they could measure any remaining pumps to confirm the correct size before I bought another one. The reply was 'no and we don't have a pump for your Nissan'. Strange thing was when asked what car I have I quoted all models, years and LD28 engine separately as printed on the Aisin box Some got the right one from them it seems from the activity in the last few weeks. We'll see if the one I get is right or wrong. That they wouldn't or couldn't measure means that can't confirm the statement that they don't have the right pump for you. I mean, how do they know for sure if they didn't look at or measure them? Quote Link to comment Share on other sites More sharing options...
mrcheeze36 Posted October 17, 2013 Share Posted October 17, 2013 I ordered two Aisin WPN079 water pumps from Rock Auto last month. The impeller diameter for both measured close to 3" like some of the other members. Quote Link to comment Share on other sites More sharing options...
inline6 Posted October 23, 2013 Share Posted October 23, 2013 Tiny bit of good news for me in such a long time with this car - the pump I got yesterday is the real LD pump. Same ground off markings and stick on Aisin label. The impeller was about 1/16th" smaller than 3". Quote Link to comment Share on other sites More sharing options...
Nelsonian Posted October 25, 2013 Share Posted October 25, 2013 I contacted Rockauto yesterday and sent photos of what should be the correct size diameter wheel as opposed to what I received and hope to send it back and try with another one. Hopefully second time is the charm. Here are a few pics showing the under sized unit I received. Quote Link to comment Share on other sites More sharing options...
Gareth. J. Posted October 25, 2013 Share Posted October 25, 2013 Same as mine Nelsonian. Perhaps it's just luck of the draw? They do look very similar to the un trained eye, I was just disappointed they wouldn't try to sort through the mistake a little better. Glad to hear your finding them easier to deal with, hope It works out in the end. I managed to find a member who was happy to exchange his LD pump for my JDM 260Z tail lights Quote Link to comment Share on other sites More sharing options...
Nelsonian Posted October 25, 2013 Share Posted October 25, 2013 Not having the best of luck with this at all. I contacted RA on Wed via phone, then last night sent detailed pictures showing the visual difference and here is the response I received this morning. "Dear Chris Nelson,Thank you for your email. From your photos, it appears you received the pump you ordered, The part number on the manufacturer's box is correct and the pump body matches the image of the WPN079 we offer in our catalog. Looking at the pump, there isn't sufficient room to install a larger impeller, as it would bind against the inside of the pump body.If the pump won't work for you, you may return it for a refund." I am going to call one last time and mention a few members who also received the wrong pump. I will then take a chance with swapping this one for another with fingers crossed. I was told they would not measure the pump similar to what they told you Gareth J. Quote Link to comment Share on other sites More sharing options...
ctc Posted October 25, 2013 Share Posted October 25, 2013 (edited) Keep in mind that Rock Auto is just a middle man. While I agree it is their problem to use quality suppliers, ultimately Aisin is responsible for incorrectly labling and not remanufacturing the part correctly. The fault is with Aisin quality control for incorrectly marking the part. Rock Auto is only at fault for buying parts from a company that mislables them. I think it is reasonable for Rock Auto to offer a refund to you and then contact Aisin about the quality issue. Welcome to the age of internet buying vs. your local counterman. I would also bet the part they inspected, looked at photos?, had the correct impeller. Oh, the irony of it! Edited October 25, 2013 by ctc Quote Link to comment Share on other sites More sharing options...
Nelsonian Posted October 25, 2013 Share Posted October 25, 2013 One more call made and the wrong size pump is on it's way back to RA. I rolled the dice and ordered their last one in stock and hope to see if the correct sized pump will come. Their service representatives were very easy to deal with and listened to everything I had to say in regards to the different sized pumps, so I'm pleased for that. Will see what comes in the next week. Quote Link to comment Share on other sites More sharing options...
DuoWing Posted October 26, 2013 Share Posted October 26, 2013 Nelsonian, I was actually looking at that on RockAuto's site and was a few clicks away from ordering it. Then I was reading through and figured I'll wait and see. It seems like they do keep replenishing their stock every now and then. Quote Link to comment Share on other sites More sharing options...
Nelsonian Posted October 26, 2013 Share Posted October 26, 2013 Yeah, they slowly keep trickling in. As of Monday they will have my returned one back in the mix, so unfortunately it will be a throw of the dice. There's no telling what I will receive this coming week either. Quote Link to comment Share on other sites More sharing options...
Josh280z Posted October 26, 2013 Share Posted October 26, 2013 I bought one of the LD pumps as well, I'll report back when I find out the verdict. Quote Link to comment Share on other sites More sharing options...
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