BloodOnTheIce
Addicted to ArboristSite
I'm interested in the idea of putting a McCulloch kart engine in one of their saws. Which models of engines fit in which saws? How much modification will be needed? Are the benefits worth the work involved?
Hardest part of putting a Kart engine in a saw is having to start the SOB.. IT will test the rope tensil strength as well as your Testicular Fortitude..
Rick
Have you had a chance to make a video of that 797G yet, Lee?
Hardest part of putting a Kart engine in a saw is having to start the SOB.. IT will test the rope tensil strength as well as your Testicular Fortitude..
Rick
Hardest part of putting a Kart engine in a saw is having to start the SOB.. IT will test the rope tensil strength as well as your Testicular Fortitude..
Rick
It all depends on which kart motors your using.
The MC91 and possibly others go into the Mac 250 frame.
And the Mc75 and MC100 go into the Mac 740, 790, and 795 as well as some geardrives. The Mc101's go into the CP125 and SP125, To the best of my knowledge they all bolt
right in but you have to use the stock chainsaw intake and exhast to keep it looking stock. The kart engines do run well in the saw frames but with the resticted intake and exhaust you don't get the full benefits of the kart motor.
Others may have more experience than myself
and may chime in.
Lee
It's easiest to put a kart engine in the earlier saws like a 250 (and related models), 1-7X series, 1-82, or a 1-86. Mounts have to be fabricated for some blocks, and some grinding has to be done on some blocks to get oil tanks, intake manifolds, stuffers, and fan housings to work. It all depends on which kart engines you want to put into which saws.
For instance, the 101 motors need to have the holes fabbed in the head for the rear vibration mount and you'll need the saw stuffer when fitting one into a 125 chassis. If you don't have the saw stuffer then you'll need the thin kart stuffer and you'd have to drill a hole in it for the oiler rod. You'd also need the correct fan housing to work with which ever starter you have.
You also need to make sure your kart engine has the tapered crank that's compatible with a chainsaw clutch.
Hmmm... That thing would be fun to try on the Alaskan mill!
I've never really found out the displacements of the kart engines. I assume the 101B is not 101cc, otherwise what would be the point of putting one in a 125?
See, I knew there was someone out there that new more than me.
Thanks for the info JJ.
Lee
That being the case, what is the advantage to swapping the original engine out for a kart one? Not to be a pest, it's just that I've heard a lot of hype about these engines but have never actually worked on any of the big old Macs to know first-hand.
Not to change this thread, But i am still trying
to figure the video thing out. But i'm working on it.
Lee
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