In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday

MillerModSaws plays with a 440R/046D Hybrid

Discussion in 'Chainsaws and Power Equipment' started by millermodsaws, Mar 14, 2015.

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  1. millermodsaws

    millermodsaws

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    downloadfile-2.jpeg Ok boys I've wanted a hybrid for awhile so I'm gonna take some time and build mine had all the parts for awhile so let's give it a go. Here's my canidate a very nice ms440 with a toasted top end.
     
    millermodsaws, Mar 14, 2015
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  2. mdavlee

    mdavlee

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    You done yet?:popcorn::popcorn:
     
    mdavlee, Mar 14, 2015
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  3. millermodsaws

    millermodsaws

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    downloadfile-4.jpeg I got this super nice 046D cylinder, piston and rings from mister cgraham1! Thank you sir!
     
    millermodsaws, Mar 14, 2015
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  4. millermodsaws

    millermodsaws

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    Just starting buddy. Lmao.
     
    millermodsaws, Mar 14, 2015
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  5. millermodsaws

    millermodsaws

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    20150313_155423.jpg I started by taking 1.2 mm off the base sides to narrow it up to fit it the hole and slotted my holes just a bit to line up with the 440 crankcase
     
    millermodsaws, Mar 14, 2015
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  6. mdavlee

    mdavlee

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    Is it one with short blowdown or just the D chamber?
     
    mdavlee, Mar 14, 2015
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  7. millermodsaws

    millermodsaws

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    Give me just a minute and I will answer that question. Take a guess! Lol.
     
    millermodsaws, Mar 14, 2015
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  8. mdavlee

    mdavlee

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    Hard to tell. If it's short blowdown it's only about .170" between exhaust and transfers.
     
    mdavlee, Mar 14, 2015
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  9. millermodsaws

    millermodsaws

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    20150313_201605.jpg Next I had to cleareance the clutch side fins just a little bit.
     
    millermodsaws, Mar 14, 2015
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  10. millermodsaws

    millermodsaws

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    20150313_201811.jpg 20150313_201517.jpg I then drilled the bolt passages to 8.5 mm. Not much bigger just a little. This is to cleareance just a little because I converted the cases to an m6 bolt instead of the m5.
     
    millermodsaws, Mar 14, 2015
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  11. millermodsaws

    millermodsaws

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    20150314_074400.jpg Then I cleareanced the cases to fit the larger trans tunnels. O ya and I will have to cleareance the flywheel but I just removed it for starters.
     
    millermodsaws, Mar 14, 2015
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  12. millermodsaws

    millermodsaws

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    And here's the numbers. Lightly tightened with gasket I have .056 squish. With out a gasket I have .036" squish and the numbers are 104/121/72. Only 17° blowdown on a factory cylinder!
     
    millermodsaws, Mar 14, 2015
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  13. millermodsaws

    millermodsaws

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    I just seen I'm an idiot and put this under the wrong forum. Hopefully the moderators will move it for me.
     
    millermodsaws, Mar 14, 2015
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  14. mdavlee

    mdavlee

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    I've heard of cylinders with 14° from the factory. Should be a fine runner with those numbers to start with.
     
    mdavlee, Mar 14, 2015
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  15. millermodsaws

    millermodsaws

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    I'm headed 102/118 and what ever the intake lands from squish cut. My debate is in whether or not to bridgeport this one. Lol.
     
    millermodsaws, Mar 14, 2015
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  16. millermodsaws

    millermodsaws

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    I'll try and get some pics later I have a 460 cylinder here too and you can see the trans tunnels are bigger on the 046D jug. That coupled with the case volume makes me hesitate on trying the bridgeports. Lol.
     
    millermodsaws, Mar 14, 2015
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  17. Scotty Overkill

    Scotty Overkill Administrator

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    Moving this thread to the chainsaw room, fellas.......
     
    Scotty Overkill, Mar 14, 2015
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  18. cgraham1

    cgraham1

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    :popcorn:
     
    cgraham1, Mar 14, 2015
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  19. Moparmyway

    Moparmyway

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    Nice choice for proting and a build thread............ following along !
     
    Moparmyway, Mar 14, 2015
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  20. millermodsaws

    millermodsaws

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    20150314_070130.jpg Without a gasket I have roughly .055 till it is at the bevel on the piston. I'm gonna use all of that. Lol.
     
    millermodsaws, Mar 14, 2015
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