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Fuel System
6 articles in this category
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Some link to sites with needle profiles: http://www.mintylamb.co.uk/suneedle/ Some time back I found a site that has a "0.100" SU needle search interface". Teglerizer.com/cgi-bin/needle100db.cgi. If the page appears blank, scroll down to the bottom.
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This is a simple step by step procedure to test the EFI fuel system for internal fuel leakage. Any corrections or improvements, please pass them on. Then we can all benefit. Instruction - Fuel Pressure Test 280Z RevC.pdf
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For those of us with original fuel pumps on our 240 and 260Zs, those pumps are now at least 35 years old. Obviously, if they haven't yet been replaced, the time of need can't be far away. In most cases, the obvious answer is to simply replace the pump, either with a new mechanical pump or convert to a modern electric pump. But the original pumps were designed to be rebuildable. For those of us with restored or original survivor cars, rebuilding the original pump is one way to retain some of
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A while back I cleaned my 280Z fuel pump and replaced the o-rings. Its running ok and I compared it to an old reserve pump. The reserve pump delivered about 75% of the flow compared to the one in the car. Since these pumps are getting harder to find in good condition I decided to take a closer look at the spare pump. The outside looked shocking, corroded and rusty so I cleaned and painted it to make it look respectable.
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Had fun with my good buddy Dr240z refining the tuning of his triple webers. The last time we set them we used a fuel level of 25mm below the cover-body margin (as per Keith Frank's recommendation). It turns out this is way too high and caused the cruise to be too rich... something that could not be tuned out. Idle and WOT were easy to set however. This time we set the fuel level to 29mm and used a new rig to do this as precise but muc
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As part of the slow refresh of my red '71 240Z I knew I needed to replace all the fuel hoses, especially the big ones that go to the expansion tank in the right rear quarter panel. I'd read all the instructions for saving money by using generic fuel-rated hose and inserting sleeves in them to keep them from kinking and such. But since I am more than a little reluctant to pollute my red car's originality, and also because I really didn't feel like messing with bending and inserting sleeves, I dec
