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Mechanical fuel pump

Discussion in 'Tech Discussion' started by BJedi76, Nov 13, 2020.

  1. highdesertrange

    highdesertrange Full Access Member

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    efing Midas. they also left a bolt off the rod access plate. now I am confused an 86 should have a return line. are you saying it didn't have one before all this? and yes a return line helps keep it from vapor locking. don't listen to those idiots at Midas. also was it an ACDelco fuel pump? it also could be a split in the rubber line between the pump and the tank. it also appears they did not replace the 3/8's rubber line at the pump. highdesertranger
     
  2. 75gmck25

    75gmck25 Full Access Member

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    There are only two bolts on the pump, and they left one off? And they may have left a cracked rubber line?

    The lever on the pump has a relatively strong spring and the rod on the block pushes against the lever to make the pump work. The two cover bolts must hold the pump and lever in place so that the rod moves the pump lever full travel. Those bolts being tight is very important.

    Bruce
     
  3. highdesertrange

    highdesertrange Full Access Member

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    look at the 4th pic in post #7. you can clearly see they left a bolt of the rod access plate. plus it looks like a 2 year old smeared RTV on the plate. highdesertranger
     
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  4. Ricko1966

    Ricko1966 Full Access Member

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    1986 should definitely have a return line find it and hook it up.Try to get a bolt in the access plate if you have problems with that let us know. My take on this and my first course of action, before doing anything is disconnect line at the carb and route it to a catch can, got fuel it's carb or fuel filter problem.No fuel disconnect the supply line at the pump and temporarily provide a different fuel source.A motorcycle tank. Lawn mower can with a piece of brake line through the cap etc. Now start it and see if the carb fills and the truck runs, Now see if it drives. This eliminates everything prepump. Still have a problem rig a return line to your temp can. Still have a problem now it's between the pump and the carb.Doing it this way eliminates the I hooked up the return line we'll wait and see if that fixed it. I found a split line on top of the tank maybe that was it, I changed the fuel cap I think that was the problem.I hate guessing,I like knowing.Customers are pissed if they have to return 3 times to get it fixed, and it makes the tech look like he really. doesn't know what the problem is.

    As for effing Midas I'm not defending them, but we don't know the whole situation.Maybe it went in with a bolt broke off in the block and the return line plugged, maybe the tech even said something about this and was told to send it out the way it came in.That covers their ass in the world we live in.
     
    Last edited: Nov 23, 2020
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  5. Snoots

    Snoots Supporting Member Supporting Member

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    Are you certain they left it off or broke it off?
     
  6. Ricko1966

    Ricko1966 Full Access Member

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    Or it was broken off before the truck came in?
     
  7. highdesertrange

    highdesertrange Full Access Member

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    if it was there or not is really not the issue. they should have fixed it while they were in there. or at least pointed it out and given him some options. their attitude on the return line speaks volumes. highdesertranger
     
  8. AuroraGirl

    AuroraGirl Supporting Member Supporting Member

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    i had that before i changed my tank, sender, and carb. it would only idle on full throttle LOL. But if i let it sit for a weeek it would work again. Since replacing tank, and seeing all the crap inside, i have not had that issue again
     
  9. Ricko1966

    Ricko1966 Full Access Member

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    This is just 1 example but when I was working at the shop where we had a full machine shop we were supposed to do whatever, I don't remember anymore,but a piece of the block that opened into an oil galley fell off in the steamer.We called the customer and he was mad at us that someone previously had epoxied this back together before he bought it. It was fine until we steamed it. It would have lasted for ever if we had just done the machine work without cleaning it I'm not defending Midas and agree if the return line was bypassed before and a bolt was broke off before they should have called him. But if they had there would be people on here right now going they probably broke it and are just trying to get more money,or the fuel line couldn't have been that way before or it wouldn't have run they are trying to rip him off.Ive kind of adopted a damned if you do damned if you don't attitude from too many years of doing this for a living.I would have called and have been the guy waiting all day for the call back at 15 minutes till close when the customer calls and says, just put it back like it was I'm on my way to pick it up.
     
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  10. Ricko1966

    Ricko1966 Full Access Member

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    Another good one I had nothing to do with just ended up buying the car, hearing the story and fixing the mistakes made. I bought a car knowing it had stripped threads in a front wheel hub.Previous owners version was yea I took it to tires plus and those idiots overtightened the lugs and stripped 2. I got the car home, investigated, and someone had replaced the integral front rotors with larger hub and hat style rotors, someone also had put alloy wheels on it. The car had lug bolts for stock integral brg rotors and steel wheels the stock lug bolts were way too short and barely catching any threads.I was able to chase the treads in the hub and use correct length bolts, problem solved.How many or people do you think he told, tires plus screwed up my car, and how many people do you think they told. I'm sorry I started writing this now, I'm just tired of the tech always being the bad guy in every situation.There are, and I am one tons of honest techs.
     
    Last edited: Nov 23, 2020
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