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About VaCat33

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  • Member ID: 35100

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    Alexandria, VA

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  1. Based upon foosman’s commets about replacement fuel pump quality and the experience related by Duffy in his post, I took another look at the internal parts in the replacement pump. The rubber gaskets all seemed to be a similar quality. The valves in the replacement pump were, IMHO, of lesser quality. The metal used seemed less durable and they had plastic parts. This might account for the early failure of duffy’s pump and supports what foosman stated. Luckily, The valves in the rebuild kit I bought were more like the originals. So look closely at the internal parts, especially the valves, if rebuilding your fuel pump. Hope this helps. Jim
  2. Legitimate question. All I can say is that the internal parts in the replacement pump appeared to be the same as the internals provided in the only rebuild kit that I know of. The rebuild kit cost $125…a replacement GMB pump cost $27. Individual call I guess.
  3. Rebuild completed. See attached photos. I had to find another original after stripping the threads in one of the screw holes. I used the cap from my original since it was better. Vapor blasted and then reassembled using the JDM parts rebuild kit. I got fresh inlet and outlet from a GMB replacement pump. Found some fresh correct zinc coated screws on eBay. Once things warm up, I can get it installed on car. FYI…for those of you considering this, The internals in the replacement pumps are pretty much the same as the parts you get in the rebuild kit. You can save yourself just shy of $100 by using the parts from a replacement pump. Jim
  4. Hello Let me first apologize in advance for my immodesty. It was a year ago today that I acquired my Z after winning an auction on BaT. https://bringatrailer.com/listing/1972-datsun-240z-161/ I was a bit concerned because I had never bought a car sight unseen before. Based on the comments on BaT I felt confident that I was making the right move and when the car came off the trailer my gut feeling was confirmed. The condition of this mostly original example is unbelievable. I invested some time and $$$ to make sure this car is reliable and safe in every way and operates and looks as if it just came off the showroom floor. A big thanks to Mike at Banzai Motorworks. (I hope this thank you is allowed.) In addition to some spirited driving, I made the 300-mile round trip to Hershey back in October, where the car won a AACA Historical Preservation of Original Features (HPOF) award. Overall, a good first year. Looking forward to when the weather breaks and we can hit the road again. First order of business is to address an intermittent year one problem involving stalling out when hot and difficulty restarting. I have already taken some action…new coil and resistor (thought heat might be compromising one or both) and new floats, needles/seats, tune carbs. I have enjoyed this forum and continue to do so. You have been a big help on a variety of issues. Jim 20210308_164006200_iOS.heic
  5. 26th… I read that article before making my post. Was able to confirm the likelihood that my 2/72 Z was equipped with a NIkki. The article mentions some differences in the screws and cover but does not really give any definitive guidance. most of the Nikki pumps I have seen have the screws the same as the second (bottom) photo in my original post. While many I have seen have the two raised rectangular areas. Hoping somebody can provide some definitive answer. Thanks Jim
  6. A couple more quick questions about the Nikki 271070 Fuel Pump. What type screws secured the body halves and cover? I have seen two versions…standard Phillips head and a slotted screw with a cross slot similar to a Phillips but definitely different. (Sorry I do not know the name of this type screw head.) I have also seen two different type covers. One is plain other than the Nikki brand name. The other has two small rectangular raised areas. Are there different versions of the Nikki 271070 pump that might account for these differences. I have attached a couple photos showing the differences. Thanks Jim
  7. Duffy that is awesome looking. Mine is almost reassembled, but does not look as nice. Looks like you zinc plated some of the parts and screws. Is that the original finish or did you paint? Jim
  8. Getting ready to reassemble my original Nikki fuel pump using the rebuild kit I acquired. The rocker arm assembly needs to be lubricated and when I first disassembled it there appeared to be some lubricating oil present in the lower body of the pump. Does anybody know what type oil is used…regular motor oil, gear oil…??? The service manual does not say anything about this, although the Haynes manual says to grease the rocker arm assembly. Thoughts? Comments? Definitive guidance? Thanks Jim
  9. Just had my Nikki fuel pump Media blasted. It looks much better, perhaps a bit dull. I will take the advice in the previous post and use some Gibbs oil based sealer. Thank You all for your help. Jim
  10. That is good scoop. I do not have ready access to a blaster…how about a Tumbler? Will that work? The VHT paint is a good fall back…in stock at my local Autozone. Thanks Jim
  11. Hello i am looking to buy a Nikki fuel pump for my 1972 240z. Part No 271070 (as seen on pump housing.) See photo. Just about any condition is acceptable. My rebuild, as discussed in my previous post, was going great. Prior to final assembly I decided to give it a good degreasing. The degreasing bath I used was much to harsh and destroyed the finish. So back to the drawing board. Now instead of the nice aluminum finish, the housing is a dull dark grey…a costly mistake. Thanks. Jim
  12. Just a brief update on the rebuild. In the original article on how to rebuild your Nikki fuel pump it discusses how to replace the rubber oil seal in the lower pump housing. As you can see in the photo, The seal went into the opening in the lower housing and was secured by a retaining ring which snapped into the opening. the rebuild kit form JDM uses a new design. The oil seal fits snuggly over the opening in the lower housing and then is secured by a retaining ring which is held in place by the pump spring. Jim
  13. Hello Again, I thought I would let everybody know That JDM parts has a rebuild kit for the Nikki 271070 fuel pump. At $125 it is not cheap. I confirmed with the company that the kit will work on all Nikki 271070 fuel pumps, regardless of the car model (as indicated in the article in the post above the 271070 pump was used in several different Datsun models.) Here is a link to the rebuild kit. https://jdm-car-parts.com/products/nikki-fuel-pump-rebuilt-kit-for-prince-ha30-fairlady-s30-skyline-gc10-with-l20-l24-engine?variant=39616128811117 Happy Holidays Jim
  14. AZ thanks. I did see this article. I am reluctant to use 50 year old rubber parts, even if from NOS unit. I was really hoping somebody out there was making a current rebuild kit. If not, I might have to consider your option. Jim
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