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  1. M

    1973 FJ40

    maybe a clogged fuel line or fuel tank. i had same type of problem and i rigged a boat gas tank directly to carb intake to test. fired right up. turned out my fuel tank was clogged.
  2. M

    Sniper EFI installed!

    been considering this as well. just general question to anyone- what is the "all everything" cost at the end of the day with an outside shop doing the work? just ball park.
  3. M

    Vacuum leak or carb, or both?

    mine was doing same and it was because fuel tank had crud in it, partially clogging and then fully clogging the fuel line. if you ran out of gas, you may have sucked something down the fuel line. as said, check/replace your fuel filter. while its unhooked, make sure your getting proper fuel flow...
  4. M

    is igniter still necessary after Pertronix ignition

    its running great now! But i had a no start situation before. i am convinced my FJ40 igniter (not the pertronix) was non-functional. Also, the "insides" of the distributor were a mess. anyway, got rid of the igniter and installed the pertronix and we're off and running! Yes, i would recommend...
  5. M

    ‘77 fj40 cranks and runs for short period but then stalls

    Major breakthrough! Unhooked the fuel line from the tank and dropped it into an external tank and I’m up and running! Now to figure out how to clean out the tank or whether I need to replace! Thanks to all for the advice!
  6. M

    ‘77 fj40 cranks and runs for short period but then stalls

    very helpful info! Thanks! Yes, the PO changed out the fuel lines (the black flexible hose) before i purchased - so maybe they got swapped.[?] Also, a new mechanical fuel pump was installed by PO. And i just put a new fuel filter on which did not change the situation. Question- should the...
  7. M

    ‘77 fj40 cranks and runs for short period but then stalls

    i have very little confidence my research is correct. fuel barely drips out of that bottom outlet with the hose detached (and there is plenty of fuel in tank). but, fuel is getting to the engine somehow. i figured the vacuum from the engine and the fuel pump sucks it out when the hose is...
  8. M

    ‘77 fj40 cranks and runs for short period but then stalls

    Thanks. I'll try the external tank thing. BTW- i have a mechanical pump as pictured towards the top of this thread. is there another electric fuel pump somewhere in the system that i dont know about?
  9. M

    ‘77 fj40 cranks and runs for short period but then stalls

    so i didnt get much feed back on the above post, but i think i was able to figure out online that the attachments are correct. however, the engine is still starving for fuel. i think the tank may have a blockage. what's the best way to clean out the tank short of ripping it out and putting a...
  10. M

    is igniter still necessary after Pertronix ignition

    1977 FJ 40- Been posting a lot of Q's lately trying to resolve my stalling issue. I recently installed the pertronix ignitition system (which replaces the points). i was told that i would no longer need the OEM igniter that rides piggy back on the ignition coil. Based on this, i disconnected...
  11. M

    Fuel hook ups at carburetor?

    Quick question about the fuel hook up at the carburetor. Trying to solve my stalling problem as stated in my other post. So, the my fuel incoming fuel from the tank is going in the front (right) port, where as the return is coming out of the left Port. From diagrams online it appears that the...
  12. M

    ‘77 fj40 cranks and runs for short period but then stalls

  13. M

    ‘77 fj40 cranks and runs for short period but then stalls

    OK, I think I may have found the problem. This is a picture of the way my fuel tank is attached. It’s hard to see from the picture but there is a hose that attaches to a nipple at the bottom right of the fuel tank. This is the hose that leads to the fuel filter which in turn leads to the fuel...
  14. M

    ‘77 fj40 cranks and runs for short period but then stalls

    A little more detail - it will rev up in the driveway. It seems to be taking gas fine until I drive it down the road. When driving around the neighborhood, after I get up to speed, it chugs and stalls. When it stalls, I can pop the hood quickly and look at the glass on the carburetor and it is...
  15. M

    ‘77 fj40 cranks and runs for short period but then stalls

    I’ve come along way on this vehicle. Just two weeks ago it would not crank and I had no spark. I was able to find a short in the wiring harness which was causing me to not have power to the ignition coil. now it will start and run. I have also installed a new perTronics ignition system in the...
  16. M

    ‘77 FJ40 need wiring help

    that's a beautiful rig by the way...
  17. M

    ‘77 FJ40 need wiring help

    Thanks! my wiring system is obviously not original. none of the colors match up. i might just need to buy a new wiring harness.
  18. M

    ‘77 FJ40 need wiring help

    here's is another tidbit of info: when i run the jumper wire from + on battery to + on coil it sparks off in the start position but wont stay cranked. I'm thinking i have a bad ground in the distributor. Does this make sense? when cranked with hot wire to starter (and stays cranked as stated in...
  19. M

    ‘77 FJ40 need wiring help

    New owner with wiring problems. Asking for help! I have a the original 2F engine but PO’s did a real job on the wiring. It does not match up with the wiring diagrams I have seen on this site for this year model. Cutting to the chase - I have a pink wire running to the ignition coil. when it is...
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