Duffy's 1/71 Series 1 240z build

[duffymahoney]

So my 3 best mikuni 44's didn't have the same patina, these had been rebuilt by a legend.  I made the decision to try and take them 95% apart myself, vapor blast and put them back together.  Honestly most of the process made perfect sense.  I am pretty detail oriented, so I just took my time and took lots of pictures.  The throttle shafts and pins are the hardest part.  So far the only thing I think i screwed up is one of the butterfly valves isn't seated 100%.  I am going to take each carb off and double check no light passes by when closed.  I am getting a high idle, which I believe is from that.  

 

I installed a nismo fuel pump with my 73 bracket, bolted right in.  Hoses were easy to install.  I installed a inertia switch/ rollover switch for the electric fuel pump (factory used a oil pressure switch).  Since I have it attached to the stock spot on the ignition.  Also a 14amp fuse.  Looks factory.  I wanted to use the stock fuel rail, I like the way it looks.  I also re- zinc'd a bunch of smalls for the intake and carbs.  So far I am very happy with how they sound.  Now time to sell my z therapy carbs.  Don't judge the fuel fitting.  The correct one is on order.  

[duffymahoney]

Some pictures of the fuel pump install.  

[calvinhg]

9 hours ago, duffymahoney said:

Some pictures of the fuel pump install. 

Nice and tidy. I wish everyone did work like that! Great job.

[duffymahoney]

12 hours ago, lordkarma88 said:

Nice and tidy. I wish everyone did work like that! Great job.

Thank you. I am trying to make whatever i do as nice as it can be done. By a hobbyist   .The interia switch was actually the first hole I have drilled in my z. It worried me a little.  I screwed up the the butterfly’s a little on the Mikuni’s. They are now all set pretty perfect. I can see a sliver of light when closed. 

The heat shield I bought doesn’t fit. Weirdly the carbs stay nice and cool. My header is ceramic coated. Maybe that’s enough? Also the header design keeps the pipes pretty far away from the carbs. Thoughts? Anyone? 

Next goals.

Next is taking the starter apart and zinc, vapor blast and paint it. 

Re zinc the horns, they have over spray on them.

Pull oil pan, powder coat and re zinc all the bolts  

 

 

[Woody928]

This car really is immaculate, I love what has been done having read back through quite a number of pages. The colour combo is also fantastic, and those mikunis looks the business! ?

Out of curiosity how big a difference did ceramic coating your header make? I'm getting a Zstory system in January next year and not sure whether to consider ceramic coating of not after quite a few comments made. 

Edited October 16, 2018 by Woody928

[duffymahoney]

24 minutes ago, Woody928 said:

This car really is immaculate, I love what has been done having read back through quite a number of pages. The colour combo is also fantastic, and those mikunis looks the business! ?

Out of curiosity how big a difference did ceramic coating your header make? I'm getting a Zstory system in January next year and not sure whether to consider ceramic coating of not after quite a few comments made. 

Thank you. Honestly the paint job (70s respray )is $^!#. But makes me want to drive it more. I doubt I will ever repaint it. 

This company did the coating 

http://www.performancecoatings.com/

 

 

[Woody928]

13 hours ago, duffymahoney said:

Thank you. Honestly the paint job (70s respray )is $^!#. But makes me want to drive it more. I doubt I will ever repaint it. 

This company did the coating 

http://www.performancecoatings.com/

 

 

Honestly that wouldn't bother me in the slightest, looks very presentable and also get used! I much prefer cars with character rather than factory fresh paint.... ?

Thanks, I've looked at a couple local to me. Just need to decide if its necessary or not... 

Edited October 17, 2018 by Woody928

[duffymahoney]

Oil catch can is done (some ebay smaller aluminum one). Time to drive it! The goal was stock looking as possible, also no holes drilled. This is two pvc hoses spliced together with a 5/8 brass union, the pre- bends worked awesome and looks like I meant it to happen. Catch can has a nice little drain on the bottom.  

[duffymahoney]

working on the tune. She is sounding good! 

[duffymahoney]

Starter circuit is done and working. I used the stock su cables. 

 

I think next is more zinc’d parts and rebuilding the horns 

[wheee!]

Looks great and I hate to nit pick but those tractor hose clamps scare me. Too many of mine ate through the fuel lines on my setup...

[duffymahoney]

Just now, wheee! said:

Looks great and I hate to nit pick but those tractor hose clamps scare me. Too many of mine ate through the fuel lines on my setup...

I have stock style wire ones. I am waiting on a L fuel fitting from Japan. Then I swill swap them all out.