Kohler KT740 flywheel removal.

[StarTech]

Okay i know some you uses pry bar and BFH but even that don't on this engine. And I got the puller that is list in the service but there is no get it attached. The two larage round holes are for the pins that holds the flywheel fan on and are not be threaded besides they are 5 inches on center the tool is only 3-3/4 on center.

Here is the flywheel.

https://imgur.com/mUdHMQ1

and here is the puller.

https://imgur.com/eXwG68e

Just how the heck are you suppose to remove the flywheel?

 

[ILENGINE]

Kohler service says to remove flywheel by using a large gear puller under ring gear.

 

[StarTech]

Always been afraid of damaging the ring gear. But where in the world am I going to find a 12" puller cheap. One time job probably. $300 is a little much.

 

[Hammermechanicman]

I have used 2 wood wedges under the flywheel driven tight then drilled a pocket in the head of a bolt that fits the threads on the crank and used an air hammer on the bolt. They come right off.
I keep a bunch of different bolts around with pockets drilled in the head for the air hammer.

 

[StarTech]

But the service advises against any impacts on the crankshaft on this particular engine. Maybe I just make up my own one time puller.

 

[Hammermechanicman]

If the magnets are going to fall off they probably already have.

 

[StarTech]

As I said I just made up my own puller and used the slots in the flywheel. It took a lot longer to make the temporary arms but the flywheel came off quickly with the impact gun.
OF course I could the air system as the compressor broke a rod a couple weeks ago. Just saving for a 60 gal upright now which would be a major upgrade to the 25 gal unit I had. Currently using a 10 gal unit to recharge the 25 gal tank.

Of course the arm tips gave some but what do you expect out cheap metal stabilizer arms. Probably will order some tool steel flat stock and work on making some stronger arms over the winter. Beside I need to work a design for pulling electric PTO clutches. Had another stuck clutch on the same engine project. Already had the cross bar made just got to get the puller arms designed to work.

 

[Hammermechanicman]

This is the one I have. Runs air line pressure at 150psi. Gets used every day and in 5 years only thing that failed was the pressure switch. Easy fix. I installed an automatic tank drain and a contactor to lower the load on the switch contacts. Replaced a Parr brand compressor built in 1944.

Quincy 2V41C60VC QT-54 Pro 5-HP 60-Gallon Two-Stage Air Compressor 230V 1-Phase

Buy Quincy 2V41C60VC Direct. Free Shipping. Check the Quincy QT-54 Pro 5-HP 60-Gallon Two-Stage Air Compressor (230V 1-Phase) ratings before checking out.

www.aircompressorsdirect.com

 

[Oddjob]

Always been afraid of damaging the ring gear. But where in the world am I going to find a 12" puller cheap. One time job probably. $300 is a little much.

Have you checked to see if Autozone has a gear puller that would work in their free lending program?

 

[StarTech]

Yes them along with Advance and O-Reillys all they had would go to 8" and the flywheel is at 10". I just made my own temporary puller and got the flywheel off and I didn't pull on the ring gear either.