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Andy K

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About Andy K

  • Rank
    Active Member

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  • Map Location
    Butler,Pa

My Z Cars

  • Zcars Owned
    240z
  • About My Cars
    Original owner of a 73 240 with 57k on the clock. Just finished a restoration
  1. 240z Electric Fuel Pump Installation

    You may find that with the mechanical fuel pump removed that if the car sits for an extended period it may not start or crank excessively long. The electric fuel pump (whether new or old) runs off the safety relay under the dash. This relay is powered by the alternator. When cranking the alternator may not put out enough voltage to energize the relay. I found the relay needs 4.5 volts to energize and the alternator only puts out 3.5 volts while cranking. With no fuel in the carbs due to evaporation you will sit. The safety relay was designed by Datsun to kill the fuel pump in the event of an accident to prevent gas fuled fires. No engine running; no voltage; no gas. The mechanical fuel pump would provide fuel to the carbs while cranking. My 1973 240 is used sparingly and the Webers go dry. I installed a byass switch ( montentary action) across the relay coil. Basically I hold the button in for several seconds to "prime" the carbs. Starts every time now.
  2. Triple Weber rebuild kit

    I bought rebuild kits from Redline for my 42DCOE's. Gaskets, float, float valve,fuel strainer and anair strainer.
  3. Triple Weber rebuild kit

    I bought rebuild kits from Redline for my 42DCOE's. Just gaskets not much more. No jets etc. I soaked my carbs (disassembled) in Gunk car cleaner. Did a great job.
  4. Any know of a respectable shop who can tune Weber's? My top end is fine but have low to midrange issues on my 240. Regards, AndyK
  5. Andy K

    Restored 1973 240 with extras
  6. weber part

    Try Redline they are a distributor/supplier of Weber carb parts. You can find them on EBay. I have 42DCOE's on my 73 Z.
  7. 18"HEELS

    That EBay website has alot of choices for sure. The wheel choice is very personal that's how I eneded up seriously considering the Drag 38-18 x 8 with a 38mm 4x114.3 to 5 x 4.75 adapter. My take has been if you stay within the original tire diameter (24.7") you're OK.
  8. 18"HEELS

    That EBay website has alot of choices for sure. The wheel choice is very personal that's how I eneded up seriously considering the Drag 38-18 x 8 with a 38mm 4x114.3 to 5 x 4.75 adapter. My take has been if you stay within the original tire diameter (24.7") you're OK.
  9. Probably too late for advise but stay within the original tires diameter approx.24.5" with 0" offset and you should be fine.
  10. 18"HEELS

    My mistake (typo). That should have been 5" bolt pattern. Like you stated the choices are better in the 5" pattern. Even with 18 x8 wheels and a 205/40R18 measures 24.4 and a 245/35R18 measures 24.1. If I use a Drag38 wheels with a 35mm 5 bolt adapter which brings me back to zero offset. I can maintain tire diameter clearances on the inner fender; suspension clearance could come into play. Regards, Andy K
  11. 18"HEELS

    Anyone out there try 18 x 8 wheels on a 240 with low profile ties to maintain the same tire diameter (24.7")? I'm having alot of concern about the requried offset to make this work. At firs t plush looks like I'll have to go 15" wheels with the appropriate adapter.
  12. 240z Wiring Diagram

    I bought a hi resolution wiring diagram recently which I found to be incomplete. It did not show the correct fuel pump wiring circuit for my 73. Datsun added an interposing relay into the fuel pump circuit to kill the power to the fuel pump in case of an accident. Thus preventing the fuel pump from spewing fuel on to a hot engine etc. I did like the idea that it was color coded which made tracing wire circuits out a snap. Also the tach wiring did not match my car. This is the rats nest I had to contend with before I figured it out.
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