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Thread: Replacing a Mikuni Carburetor with a Weber Carburetor

  1. #51

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    Quote Originally Posted by StarquestMan View Post
    If memory serves right on the dual vacuum advance units used for Federal High Altitude converted vehicles and California emissions trucks the top port is a secondary advance for the "high altitude compensator" that advances the timing by 5 degrees and the bottom one is the main vacuum advance that is used by the carburetor. hope this helps
    I will try the lower distributor barb and hope that is the correct one. Thank you btw. If anyone knows for sure if the lower barb on the distributor should be used for the weber, please confirm.
    Last edited by BJH324JH; 08-14-2019 at 11:39 PM.

  2. #52

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    Ill check my service manual tomorrow but i'm 95% sure that's how its set up. Geezer has a good point about trying them both though since the high altitude advance may have less advancement than the main lower section of the unit.

  3. #53

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    Ok i checked the FSM and it does in fact use the top port for the HAC system and the bottom for regular vacuum advance. i couldn't confirm though that the top port advances timing by a set 5 degrees like i thought though. i'm assuming that the main vacuum advance will give more adjustment range than the top section would but like geezer101 said if the Weber does provide more vacuum then you will need to account for that. in fact im curios myself on what the best solution is since i may be using a Weber myself on my Mighty Max 4x4 that has a California emissions setup?

  4. #54

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    Quote Originally Posted by StarquestMan View Post
    Ok i checked the FSM and it does in fact use the top port for the HAC system and the bottom for regular vacuum advance. i couldn't confirm though that the top port advances timing by a set 5 degrees like i thought though. i'm assuming that the main vacuum advance will give more adjustment range than the top section would but like geezer101 said if the Weber does provide more vacuum then you will need to account for that. in fact im curios myself on what the best solution is since i may be using a Weber myself on my Mighty Max 4x4 that has a California emissions setup?
    Thank you very much.

  5. #55

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    I gather from other threads here, our vacuum advance should be fed from the left (slightly higher) vacuum barb on the Weber carb, the one normally blocked with a screw in the end, as the usual vac advance barb on the right gives too much vacuum too early.
    1987 Dodge Ram 50 4G54 2WD longbed ("Elmo")
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  6. #56

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    Question The Electrics...

    I just got the electric gas pump and was wondering how you wire this thing up? There is a wire coming out of the electirc gas pump with a label on the cord that says "to ground only", "do not wire to positive."
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    Also, how do I wire the electric choke?
    Last edited by BJH324JH; 08-24-2019 at 04:54 PM.

  7. #57

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    BJH324JH
    Look at post #37 It should all be the same even though you have a different pump. It is still two wires power and ground. The part about T'ing off an existing wire will help and the electric choke on mine is wired to the coil. Same pin the wire from the distributor connects to.
    http://www.mightyram50.net/vbulletin...9074#post69074

  8. #58

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    Ground goes to the shortest path it can on the body/chassis of the truck (requires a good, solid connection). The electric choke is simply live power with the ignition on (like the coil or distributor as 85Ram has indicated). As mentioned, it's the same wire as the fuel cut solenoid on the factory Mikuni carb just repurposed.
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  9. #59

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    .....
    Last edited by claych; 08-28-2019 at 12:38 PM.

  10. #60

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    Quote Originally Posted by BJH324JH View Post
    What do I need to do to replace the Mikuni carburetor to a Weber carburetor? I have a 1988 Mitsubishi Mighty Max 2.6l 4x4 manual transmission pick up truck.

    UPDATE: 11:48 A.M. 6/16/2019 Sunday
    I purchased the Weber 32/26 DGEV K610 carburetor from Carbs Unlimited and received it a few days later. Although, the carburetor has DGAV stamped on the base instead of what I believe is supposed to be DGEV. Anyone know why that is? I took multiple pictures of what you will get when you order the Weber 32/36 DGEV K610 carburetor.

    I received this box that was in another box(inception :
    Attachment 22818

    Overall contents of package:
    Attachment 22819
    Contents laid out on table:
    Attachment 22820

    Pictures taken of the carburetor body:
    Attachment 22824Attachment 22826Attachment 22827
    Attachment 22828Attachment 22829Attachment 22830
    Attachment 22831Attachment 22832Attachment 22833
    Attachment 22834

    UPDATE: 11:18 P.M. 8/11/2019 Sunday
    The following pictures are the components you will receive with the k610 conversion kit. I took a picture of each component to show a closer view.

    Attachment 23103 Attachment 23104Attachment 23105Attachment 23106Attachment 23107Attachment 23108Attachment 23109Attachment 23110Attachment 23111Attachment 23112Attachment 23113Attachment 23114Attachment 23115Attachment 23116Attachment 23117Attachment 23118Attachment 23119Attachment 23120Attachment 23121Attachment 23122Attachment 23127Attachment 23123Attachment 23124Attachment 23125Attachment 23126

    The first three pictures were taken before the conversion started:
    Attachment 23128 Attachment 23129Attachment 23130

    These next pictures, I started removing...
    Attachment 23131Attachment 23132Attachment 23133Attachment 23134Attachment 23135Attachment 23136Attachment 23137Attachment 23138Attachment 23139Attachment 23140Attachment 23141Attachment 23142Attachment 23143Attachment 23144Attachment 23145Attachment 23147Attachment 23148Attachment 23149Attachment 23150Attachment 23151Attachment 23152

    Carburetor removed with it's annoying vacuum hoses:
    Attachment 23146

    Helpful Links:

    Where I ordered the Weber 32/36 DGEV K610 Carburetor:
    http://www.carburetion.com/Products/ProductDetails.aspx?Part=K610


    Weber 32/36 DGEV K610 Carburetor Diagram:
    http://www.carburetion.com/diags/3236DGAVDiaginfo.asp

    Identifying a Fake Weber Carburetor:
    http://genuineweber.blogspot.com/

    Redline Weber Contact Information:
    http://www.redlineweber.com/contactus.html

    What DGAV, DGEV, etc... means:
    https://motofaction.org/mechanical-1...l-differences/
    I call bullshit !!! where is the picture of the weber mounted to the intake manifold???? & running.

  11. #61

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    Quote Originally Posted by 85Ram50 View Post
    BJH324JH
    Look at post #37 It should all be the same even though you have a different pump. It is still two wires power and ground. The part about T'ing off an existing wire will help and the electric choke on mine is wired to the coil. Same pin the wire from the distributor connects to.
    http://www.mightyram50.net/vbulletin...9074#post69074
    Quote Originally Posted by geezer101 View Post
    Ground goes to the shortest path it can on the body/chassis of the truck (requires a good, solid connection). The electric choke is simply live power with the ignition on (like the coil or distributor as 85Ram has indicated). As mentioned, it's the same wire as the fuel cut solenoid on the factory Mikuni carb just repurposed.
    Thank you guys for the help.

  12. #62

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    Quote Originally Posted by claych View Post
    I call bullshit !!! where is the picture of the weber mounted to the intake manifold???? & running.
    I'm trying to make time for the truck, it's just that life throws things my way that I have to deal with first. I have yet to install the fuel pump due to trying to keep a roof over my head. As soon as I free up time, I will get back to trying to get the truck in working order. I will also take pictures of the new Weber on the intake manifold. I am not B.S. anyone.

  13. #63

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    LOL don't sweat it. Life is what happens while you're making other plans. Hell, my trucks been off the road for this long. I'm still scrounging parts for it... I either have time but no money or too busy to direct my attention to it. You're a lot closer to having your truck running than I do atm.
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  14. #64

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    Quote Originally Posted by geezer101 View Post
    LOL don't sweat it. Life is what happens while you're making other plans. Hell, my trucks been off the road for this long. I'm still scrounging parts for it... I either have time but no money or too busy to direct my attention to it. You're a lot closer to having your truck running than I do atm.
    Thank you for understanding geezer101.

  15. #65

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    Quote Originally Posted by geezer101 View Post
    I see how it would mount to the carb. I do not see how the air cleaner would be attached to it. I can infer that long bolt might be meant for the center hole to hold the top down, and by that the whole housing, Is that the case?

  16. #66

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