149 project starts tonight

[IACubCadet]

ihnick-I agree with Gear Wrenches, makes those front frame bolts so much easier to install.

I once had a hard starting Kohler, it always stopped in the middle of a revolution. It turns out that the valves were not adjusted right.

[Flatbedford]

I got the right side OK with a gear wrench, but the steering linkage made it very hard to turn the wrench on the left. I jacked up the front and pivoted the axle clear. I didn't take a picture of that.

[Flatbedford]

My friend in the metal shop cleaned up a drive plate for me.
Before.

After.

A little TIG work and some grinding and its as good as new. I'm gonna have to get some beer booze, or wine for him.

[ACecil]

That came out great!

[Flatbedford]

I made some more progress last night, but didn't take as many pictures. I got all the tin off. Removed the carb.

It was running OK, but it is filthy. I have a kit so I guess I'll tear it down and clean it up.
I opened the valve cover and the removed the oil pan.
The balance gears are still there.

And so is the ACR spring!

At least down here the ACR is in working order. When I turn the engine the little ACR flap touches the push rod, but does not open it. I'm guessing that the valves need adjustment? I think I'll start a separate thread on that for more help and advice.
I removed the easy balance gear.

Does this stud stay?

I'll go in with a chisel to get the others out next time.
I have some serious cleaning to do. There's a part of me that wants to thoroughly clean every part and repaint it but there's also a part of me that wants to get this thing back together ASAP. If I only had another Cub, then I could take the time and make it nice.

[ACecil]

Thanks for the pics and update, Steve!

[IHinIN]

Originally Posted by Flatbedford

Does this stud stay?

I'll go in with a chisel to get the others out next time.

Yes, the balance gear shaft stays. The other gear is easier to get out with a couple taps with a punch and hammer. You just have to hit it where one if the lightening holes is and it will crumble and fall out. The first time I did it I couldn't believe how brittle those gears are. I was expecting to have to hit it much harder to get it out.

[zippy1]

You're doing good Steve. You'll have it up and running soon.
Don't you just hate having to put everything back together without at least sprucing things up a little?

[Flatbedford]

More progress. Not as many pictures.
I chopped out the other balance gears.

It split apart easy enough, but I had a heck of a time getting the remains out. A piece about 2/3 of the gear got wedged up under the crank. It took about 20 minutes of finagling to free it. I did a good sweep with a rod mounted magnet for small parts, shook it around, and repeated a few times.

Next, I removed the cylinder head.


Looks like the gasket was leaking a bit. I did my best to clean it, but took no after pictures.
Not the greatest picture, but I think it looks pretty good in there. I've never had one of these apart to compare to, but based on what I have seen and read here it is good. No ridges, no scratches.

I adjusted the valves, but took no pictures. I think the ACR issue was simply due to out of adjustment valves. I saw a noticeable difference in valve movement after adjust ment.

[Flatbedford]

Next I tore down and cleaned the carburetor and replaced the kit parts.
Before.

After

While the carb was soaking I replaced the fan. I think it was time.


Head back on and torqued to specs.

Some cleaning and engine back in.

I had to reset the governor arm. I found that this worked for the third hand.

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