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  1. #1
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    Losi 3.4 Carb and MIP Clutch Review

    Hey guys, I finally just got my Losi 3.4 carb and my MIP clutch in the mail today. I also bought a new engine block with bearings in it to fix my leaking bearing issues. I also bought a new crank because it was only $1 on Dollar Hobbyz. I'm going to install them in my Slayer today and write up a review.
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  2. #2
    Marshal Double G's Avatar
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    Here I was waiting for a review to compare it to mine. Wednesday night I replaced the carb o-rings (the HSN dried and cracked) and the stock clutch exploded and so in went the MIP.
    Drove the truck this morning before work................
    The Super Derecho

  3. #3
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    Ok, I'm almost done, but I can't figure out how to make the throttle linkage work. Could some one post a picture of how they set up their throttle linkages? Thanks!
    Last edited by Wolfslash16; 07-06-2013 at 07:48 PM.
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  4. #4
    RC poster
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    You need to file the shaft on carb to fit into the stock throttle fork. Take a small bit off then try but don't take off too much

  5. #5
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    You need to file the shaft on carb to fit into the stock throttle fork. Take a small bit off then try but don't take off too much
    Thanks, but it seems the throttle arm coming off the carb is too short also. Any other help?
    Pictures would be great!
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  6. #6
    RC poster
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    I'm not home to get pics. Sorry. The losi has 2 different length arms. Both will work. The longer one you file above the ball end. The shorter one that sounds like you have file the ball end to fit in fork. File or grind it down almost to size is shaft just above ball. I've done it with both types and either one work well just rakes patience good luck it will be worth the work.

  7. #7
    Marshal Double G's Avatar
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    I suppose you want pics, huh? Forgot I had some in my Photobucket account until I opened it up to load some photos I just took from a camera that had dead batteries which I had to search for many more. You owe me!



    And a close up I took today:



    I'll admit, I found a spare stock clutch so that is in the engine now. The MIP is on the new engine sitting on the bench.
    I believe I'm at 3 turns HSN and a little more than 3 LSN with a 0.9mm idle gap. It rips and has a low idle. Still a little higher temps but the front bearing may be on its way and this engine has a piston from one engine and a sleeve from another though they were mated, per se, when Ray A repinched it and I broke them in. One maybe two gallons so far and going good!
    Last edited by Double G; 07-07-2013 at 07:10 PM.
    The Super Derecho

  8. #8
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    THANKS Double G!!

    I been trying trying to start my Slayer for the last hour, with no luck. It was getting fuel, air, and the glow plug was brand new. Turn out the piston was in backwards. Oh well, live and learn!
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  9. #9
    RC poster
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    Quote Originally Posted by Wolfslash16 View Post
    THANKS Double G!!

    I been trying trying to start my Slayer for the last hour, with no luck. It was getting fuel, air, and the glow plug was brand new. Turn out the piston was in backwards. Oh well, live and learn!
    Forgive me if I am bringing up old stuff.. I hope you don't mind. I stumbled upon this thread because I am not having any luck tuning my 3.3. Something you said about the piston in backwards...??? I just had my motor apart. I didn't see any marks or anything.. don't recall anyway.. how do you know how the piston is "in backwards"???

  10. #10
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    Wells guys, I just got my Slayer running, and I must say WOW! I can't believe the difference the Losi 3.4 carb made! It's so much easier to tune now! Also, the MIP clutch is great! It hooks up much better than the stock one! Two thumbs up!
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  11. #11
    Marshal Double G's Avatar
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    The cutout on the piston needs to face the carb. As well as the oil holes on the rod.
    You'll also need to make sure the cutouts on the backplate face up too.
    The Super Derecho

  12. #12
    RC poster
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    Quote Originally Posted by Double G View Post
    The cutout on the piston needs to face the carb. As well as the oil holes on the rod.
    You'll also need to make sure the cutouts on the backplate face up too.
    Hey! Thank you so much. I did have the piston in backwards.. I can't believe I never noticed. Well any way upon further inspection, the idle screw was stripped out as well.. Prob try the 3.4?? When I was trying to tune the engine, I did have it idling with the carb slide open about 1/4 of the way. Do you think I may have done any damage? Everything looked ok the last time I had it apart..

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