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How would you put a fuel cutoff switch on a mechanical fuel pump??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by muddin4fun, May 7, 2001.

  1. muddin4fun

    muddin4fun 3/4 ton status

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    I saw steve's post and it got me thinking. Or maybe I need to do something to keep power from the distributer?

    [​IMG]
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  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I'm considering a ball valve in the fuel line somewhere out of the way and preferably hidden. The truck might run for a minute or two before the carb dries up. It might be enough to foil most thieves as anything that requires extra time is always a deterrant.

    An ignition cut-off switch is good but the HEI can be hot wired so fast I'm not sure how much deterrant that would be.

    A start motor cut-off might be good too...

    Just some random thoughts, hope it helps.

    Rene...thieves should be shot[​IMG]

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  3. Boss

    Boss 1/2 ton status Author

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    Yeah, I don't think there is a way to do that with a mechanical fuel pump, so I put a cut off switch on my starter on my 75' K5. very easy to do and works great.
    With the 89', I'll be looking into the fuel pump cutoff though :)
    Boss

    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>
     
  4. muddin4fun

    muddin4fun 3/4 ton status

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    A ball valve??? How do those work? I've never seen or heard of one. Yes, I think all thieves should be shot too!

    [​IMG]
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  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Imagine a ball with a hole drilled through it. Thats what the valve looks like inside, line up the hole and you have unrestricted flow, turn the ball 90 degrees and you have no flow. Usually a brass valve with a handle on top that moves 90 degrees one way or the other. They are a lot nicer to use than the ones that are like the garden hose...

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  6. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Ball valve on the pickup line would be a good idea. I like that idea Rene. Could put it in the floor becide the console where it's easy to reach from the seat but not likly to be noticed. Drop a rag on top of it and nobody would know it's there. I think there is already a break in the lines right under the passenger seat where it would be REAL easy to hook in.
    They would get it running long enough to get out in the road and it would die. They wouldn't hang around at that point with it drawing attention being dead in the road. Keep damage to the truck down to the window and the colum. Most alarms to a theif are a joke and they don't phase the pro. Dieing in plain veiw in the road would. Still got damage to deal with but hay, they didn't get away with the truck.

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  7. muddin4fun

    muddin4fun 3/4 ton status

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    Maybe I should just wrap the whole truck in barb wire everytime I get out. LOL! Wouldn't that be a site! Someone gets out of the truck and starts running around it wraping it. LOL! I'm thinking of a starter cut off switch. And mount it on the side of the console inbetween the seat and the console instead of the dash, cause that's where most theives go to looking for switches. I'll have to look and see where all the fuel lines run as for deciding to go with a ball valve. Thanks for the ideas guys!

    [​IMG]
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  8. POWERMAD

    POWERMAD 1/2 ton status

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    As the weather is getting nicer I am itchin to pop the top.
    And then I started to look around the inside and realized I will practicly have to weld everything down so I don't come out of the store and the Hi-lift or tool box has vanished.
    So now I am in the prosess of minimizing the chances if getting ripped off.
    I have a junk CB and tape player that I am gonna install and relocate the others.
    I have a chainbox from work that is 3x2x2' . That is going to be bolted to the bed and all of the grab quick items will be locked in there.
    Parinoid? Naw I'm just sick of supplying some a$$ hole with my stuff.
    It's a real shame that a guy or gal can't leave their rig for 5 minutes to grab a pack of smokes and and not worry that their stuff is gonna dissapear.
    The ball valve is an excelant idea Rene.
    No one is gonna pop the hood to see what the heck is going on.
    See ya


    my truck's not dirty, it's earth tone paint
     
  9. dyeager535

    dyeager535 1 ton status Premium Member

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    Buy one of the steering column protectors that clamps over the ignition lock section of the steering column. Youcan still start the vehicle, you will not be able to drive it. Its a visible deterrent as well.



    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  10. Bigd

    Bigd 1/2 ton status

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    I just put one of those things so that you can put a key into the adapter and pull off your steering wheel.I also have a cage and was thinking of making a bar that went from my parking brake too the cage that could lock in with a lock and keep the pedal pushed down.I think anything that just keeps them from jumping in and stealing it real quick will help out alot.
     
  11. jimmyjack

    jimmyjack 1/2 ton status

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    Great ideas! I know the alarm is simply something else to a thief but it takes a few more seconds to deal with. A steering wheel can be cut to remove a club too. I like the ball valve a whole lot. Sounds pretty simple. At worst you need to add a few feet of tubing to your fuel line. Would brass or plastic be better? Another thought. Would a restricted flow increase pressure to the fuel pump? Or does that matter?

    "My blazer may be slow, but it goes faster at higher speeds"

    Jim
     
  12. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    If you are worried about having your ride stolen you might want to check this out. I just saw a thing on tv where you have to punch in a code once a car/truck is started in order to keep in running. If the code is inncorrect then the car shuts off. It takes I think a few minutes to reset before it can be started again. If the theif gets it going again same thing happens. It's supposed to be brand new and work really well. They had some guys who used to steal cars try it out. They couldn't figure it out to by pass it since you really can't unless you have the code and a theif wouldn't have that. They said the fact it takes time to reset would make them not try to steal it. They want to be gone fast not sit and play with some code system and dying car. It's about $400 bucks. That to me is small change compared to what I would lose if my Blazer were stolen. Even with insurance you'll never get back what you put into it. I'm going to look into this system and if I find out more I will post it.

    Steph
    &lt;&gt;&lt;

    "Suck Fumes Ford Boy"
    "I love my country, I fear my government"
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  13. mattman

    mattman 1/2 ton status

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    That sounds like an interesting system but how does it connect? It would stop a quick thief but if he wants your truck and he has time, can he just find the wires that connect into your harness and jump them? The reason I ask is the previous owner put one of those Prolock systems on mine and I used to be paranoid about losing the key. Then one day I traced the wires and found where they spliced in and it would be real easy to jump this point and bypass the Prolock. This took me all of 2 minutes since the installer didn't hide his work real well. So 2 minutes, a Rad Shack jumper and a screwdriver for the column and he has a 90 Jimmy. Just a thought. Even starter kills are not much of a problem for a pro if the switch isn't hidden real well. Just a thought.

    90 GMC Jimmy, 350 TBI, 700R4, 32's
    84 Bronco II 204,000 miles and counting...........
     
  14. 90K5

    90K5 1/2 ton status

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    I just put a switch on my fuel pump ground, duct taped to the frame. No one will ever look there unless they see me flip it closed. And if someone does do it, I know where to start looking...[​IMG]

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     

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