ArboristSite.com Sponsors


Special motor? for log splitter

JoshNY

JoshNY

ArboristSite Operative
Joined
Dec 15, 2018
Messages
127
Age
36
Location
Watertown NY
I think what is trying to be said about vertical motors is this.
Many vertical motors have lightweight aluminum flywheels, and they still start and run properly due to the mass of the mower blade adding to the rotating mass.
If you used a push mower engine with a light weight flywheel on a wood splitter without the blade, the engine would lack torque and in my experience are harder to get started due to less momentum to keep the engine turning.
I know many of the old briggs and tecumseh engines used an aluminum flywheel on a mower application, and a cast iron flywheel for a non mower, such as pressure washer.



Sent from my SM-S727VL using Tapatalk
 
Ted Jenkins

Ted Jenkins

Firewood by TJ
Joined
Apr 18, 2016
Messages
2,199
Age
68
Location
Twin Peaks
Lawn mower engines do not run well with out some flywheel mass. They are easy to make, but take a little time. A 1/2'' 8'' to 10'' plate with a hole drilled to match some what close to the crank shaft will do it. Hold the disk with a bolt that matches the hole in the disk, gently spin the disk with a grinder to true it up until its close then run it in a drill to see if it shakes. Bolt it on to your shaft then you can forget about it. Lawnmower motors are very cheap. I was given four of five of then in the last year. Thanks
 
David Wayne

David Wayne

ArboristSite Operative
Joined
Dec 7, 2007
Messages
265
Location
Central Ohio
I hate when a day goes by without learning something, so I thank all of you, this has been informative. As for me, I currently am running a 3 1/2 hp 3 phase
with a VFD converter. Works great splitting in the shop during the worst weather in a tee shirt. The old briggs was getting cantankerous and I thought
with a cheap gas motor I could swap out and take it to the woods on the nice days. The cheap motors say for lawn mower only, while the higher price ones
say mutiple use. So for now I will just stay with electric. Thanks again.
David
 
hunter72

hunter72

ArboristSite Operative
Joined
Dec 18, 2012
Messages
370
Location
Northern Il.
Here is a Harbor Freight Predator motor I installed on a free 20 ton husky splitter. The splitter was given to me by a friend. it had a bad motor and low on hydraulic oil. The Predator motor 's shaft was about 1/8" longer than stock so I just used washers as spacers and it fit and runs very well.
Hope this helps rodgers + saws splitter 007.JPG
 
r black

r black

STIHLAHUSQYLOVER
Joined
Sep 25, 2014
Messages
1,116
Location
G.N.W. BUT CURRENTLY IN UTAH
Here is a Harbor Freight Predator motor I installed on a free 20 ton husky splitter. The splitter was given to me by a friend. it had a bad motor and low on hydraulic oil. The Predator motor 's shaft was about 1/8" longer than stock so I just used washers as spacers and it fit and runs very well.
Hope this helps View attachment 774698
i have the same engine on a 1962 front tine tiller , they run very well.. it is still working fine after 2 years , i also had the same problem , with a longer crank shaft i used a cut- off wheel and shaved 1/2 inch off the crank ....:)
 
aokpops

aokpops

Addicted to ArboristSite
Joined
May 28, 2005
Messages
2,682
Age
59
Location
ohio
I bought a predator 346 in 2012 that motor is longer sold . Getting a little off topic but I use about the fuel than the flat head Briggs . Running a 16 gallon pump about idle is all it needs to run it. Letting it set for months don’t remember ever pulling more than 2 times
 
knockbill

knockbill

Addicted to ArboristSite
Joined
Aug 20, 2008
Messages
1,729
Location
se pa
We put a 6HP vertical BS Murray mower engine on my buddies 20T splitter about 10 years ago,,, starts first pull as it has a pruner bulb... lots of torque, actually runs at about idle unless it hits a crotch,,, just check teh oil level and split wood!!!!
 
bbxlr8

bbxlr8

ArboristSite Operative
Joined
May 4, 2011
Messages
120
Location
PA
Thanks all, When the time comes to replace it will likely be a predator
I went with the HF predator to replace the Koehler on my TSC 22T (speeco) that was about 8 y/o last winter
It was a super easy bolt in and starts nice & runs pretty quiet.
Only 1 year on it, but no complaints at all (great price with the sale & coupon also)
 
Top