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  1. #1
    RC Racer
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    Life Expectancy of a 3.3?

    I've got my friends Slayer here at my house, and it needs a new piston and sleeve. I was just wondering what the life expectancy of the 3.3 motor is...
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  2. #2
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    5 tanks to 7-8 gallons
    I'm so far behind, it looks like I'm winning.

  3. #3
    RC Racer
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    Wow, that's it? Thanks for the help.
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  4. #4
    RC Racer
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    So what can I do to make sure that my motor lasts for a long time, cause I don't wanna be spending $80 every month rebuilding the motor...
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  5. #5
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    its actually a very reliable motor. I dont even run 2.5 gallon through in the whole season. Most .21 motors that I have seen and dealt with may last around 5 more if your lucky
    I'm so far behind, it looks like I'm winning.

  6. #6
    Marshal carraig042's Avatar
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    1. Break in properly
    2. Do your after run procedure if it will sit for more than a day or two.
    3. Make sure you maintain a good tune.

    If you do all of this you can get 8+ gallons on an engine.

    -Brett
    4wd Sportmaxx 3.3
    E-Revo - Mamba Monster - Neu 4s

  7. #7
    RC Racer
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    I havn't gotten my Slayer yet, so all this Nitro stuff is new to me. I know you have to break it in, I know how to do that, but what is the after run procedure?
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  8. #8
    Marshal carraig042's Avatar
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    You can use an after run specific oil, or you can use wd-40. After the run you will squirt one of those down the carb and glow plug hole, then turn the engine over for a few seconds. You do this 2-3 times. Then you make sure that the piston is at BDC. (Bottom dead center) The instruction manual that comes with your Slayer will tell you how to do it. Read the manual twice (especially the break-in and tuning part) and be sure to watch the dvd.

    Edit: Here is a great thing to look at that has more detailed information as far as tuning goes.

    -Brett
    Last edited by carraig042; 03-08-2009 at 10:28 PM.
    4wd Sportmaxx 3.3
    E-Revo - Mamba Monster - Neu 4s

  9. #9
    RC Turnbuckle Jr. CarGuy7a's Avatar
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    after run is a must. the reason for this is because the fuel is a methanol based fuel which creates alot of condesation b/c of it's high evaporation rate. condensation will cause the steel internal parts to corrode over time unless you flush it out after you run it (after run). all you're doing is flushing the excess fuel out of the engine with either WD 40 or after run oil.

    i actually use both. i'll do WD 3 times then the last time i'll put after run oil in it and let it sit.

  10. #10
    RC Racer
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    Cool, thanks for the help everyone.
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  11. #11
    RC Turnbuckle Jr. CarGuy7a's Avatar
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    run it till it blows and then use the ERP.

  12. #12
    RC Racer
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    Quote Originally Posted by carraig042
    1. Break in properly
    2. Do your after run procedure if it will sit for more than a day or two.
    3. Make sure you maintain a good tune.

    If you do all of this you can get 8+ gallons on an engine.

    -Brett
    i agree with you!!
    i would say at least 6 gallons but 8-9 sounds right
    I have 15 r/c's and my slayer & slash are the best

  13. #13
    RC Racer
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    After I replace the piston and sleeve, I have to break it in again, right?
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  14. #14
    RC Turnbuckle Jr. CarGuy7a's Avatar
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    Quote Originally Posted by DK-Freestyle
    After I replace the piston and sleeve, I have to break it in again, right?
    yes you do.
    Last edited by CarGuy7a; 03-09-2009 at 07:02 PM.

  15. #15
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    Quote Originally Posted by DK-Freestyle
    After I replace the piston and sleeve, I have to break it in again, right?
    You can re pinch the piston and sleeve..Then break it in again and you'll get about 3 gallons out of a re-pinched sleeve.....

    Get a hold of dalefuller1 if you need to get a sleeve pinched or have questions about it..he does my sleeves for me.
    Race when i want and where i want.......

  16. #16
    RC Turnbuckle Jr. CarGuy7a's Avatar
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    re pinched sleeve? never heard that before. what does that mean?

  17. #17
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    Well, you take the sleeve and put it in a coupler and squeeze the sleeve to make a tighter fit around the piston, makes it almost like new.The sleeve is brass so it can be pinch.
    Race when i want and where i want.......

  18. #18
    RC Turnbuckle Jr. CarGuy7a's Avatar
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    oh ok that's kind of what i was thinking. man you gotta be precise to do that tho. i mean real precise. the gap is miniscule in ABC motors.

  19. #19
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    I'm going to try to do some soon, it takes time and patience to do one.
    You don't have to be very precise, as long as the piston is able to slide up and down your good, you can over pinch as sleeve too.
    Last edited by Gearhead racer; 03-09-2009 at 07:55 PM.
    Race when i want and where i want.......

  20. #20
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    Quote Originally Posted by NitroBurner9
    5 tanks to 7-8 gallons

    I must be lucky, I am 2 years on the same motor. Probly close to 10 gallons and running great. I leave them a little rich to help keep it alive. But knock on wood, I have never lost a 3.3 motor yet.
    I just wanna go fast!!

  21. #21
    RC Turnbuckle Jr. icepick832's Avatar
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    I guess I was lucky too. 10 gallons (well just under), and mine still had good pinch, was down for upgrades and decided to just retire it.. I beat on it pretty hard too.oh, and never once saw a drop of after run oil.

  22. #22
    RC Turnbuckle Jr.
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    I don't see any reason for it to brake if you keep it lubed and do after run maintenance on it after every days play...
    If you don't like Nitro, you don't like anything!

  23. #23
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    sleeve pinchers

    my bash buddies and i were thinking about going in together for one of those,are they really worth it,need more info
    Master of Traxxas engine longevity....

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