Datsun Roadster Forum-311s.org

2mAn wrote: ↑Tue Jul 02, 2019 12:49 pm

2mAn wrote: ↑Fri Jun 28, 2019 5:45 pm Also called Hoopers Rear Ends and were still at a standstill with the rear end. I bought a 4.38 truck pumpkin/ 3rd member and my LSD unit wouldnt fit inside of it, so I suggested using my Roadster pumpkin/ 3rd member that has a bad 3.9 and swapping in the 4.38 gear along with the LSD unit, but he still doesnt feel like it will work... why is this so difficult for me... im a bit furstrated as I was hoping to have the rear end wrapped up so I could focus on the motor once I have my head back.

so as this continues to be a headache, its time to ask again for help. I was going to rant, but nobody cares to hear about it, myself included...

Hoopers tried to take the 4.38 ring and pinion and install it into the Roadster sourced 3.9 pumpkin/ 3rd member and said that the bearing sizes are different. In other words, the 4.38 and my LSD unit wont fit together in the aluminum pumpkin/ 3rd member from the truck, and they wont fit into the Roadster pumpkin/ 3rd member.

If ANYONE can help shed some light on this I would be very grateful because Im now on month 7 of the Roadster on jackstands and this was supposed to be a ~3 month deal... I miss driving my car

Mackn367 wrote: ↑Tue Jul 02, 2019 3:57 pm Mechanical Fuel Pump:

First I'll say I have researched for a while before asking this question. I also fully understand the mechanics to each piece in pump and how they function.

That being said - Can someone here show how to install a new diaphragm in the fuel pump? A video of this would be great. I can remove the old diaphragm but I am having difficulties re-installing it to the lever. Oh and last thing I tried was to remove the pin to remove the lever... does not work. There is a metal ball on each end locking in the pin (even though some instructions say you can remove the pin with a punch - and I have even seen this done on a different style mechanical fuel pump on youtube)

Here are pics for reference on the type of pump and style diaphragm.

THANKS!!!!!

Mechanical Fuel Pump.JPG
IMG_E0665[1].JPG
IMG_E0666[1].JPG
IMG_E0667[1].JPG

spl310 wrote: ↑Tue Jul 02, 2019 6:58 pm Mackn367, if you can get the old diaphragm out, compare the old and the new. Careful inspection should let you see what the problem is.